Real Talk: Eosinophilic Diseases

American Partnership for Eosinophilic Disorders
Real Talk: Eosinophilic Diseases

Eosinophils are a type of white blood cell that play a role in immune responses and help fight off infections. When these cells build up and cause inflammation in the digestive system, tissues, organs, and/or bloodstream, without a known cause, it may be the result of an eosinophil-associated disease. Join the American Partnership for Eosinophilic Disorders (APFED) for a series of conversations with researchers, clinicians, patients, and other community members as we discuss practical strategies for disease management and treatments, research, and other topics of interest.

  1. 24 JUNE

    Bone Mineral Density in Pediatric Eosinophilic Esophagitis

    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Anna Henderson, MD, a pediatric gastroenterologist at Northern Light Health in Maine, about bone mineral density in EoE patients. They discuss a paper she co-authored on the subject. Disclaimer: The information provided in this podcast is designed to support, not replace, the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own.   Key Takeaways: [:50] Co-host Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, Sanofi, Regeneron, and Takeda. Ryan introduces co-host Holly Knotowicz.   [1:17] Holly introduces today’s topic, eosinophilic esophagitis (EoE), and bone density.   [1:22] Holly introduces today’s guest, Dr. Anna Henderson, a pediatric gastroenterologist at Northern Light Health in Maine.   [1:29] During her pediatric and pediatric gastroenterology training at Cincinnati Children’s Hospital, she took a special interest in eosinophilic esophagitis. In 2019, Dr. Henderson received APFED’s NASPGHAN Outstanding EGID Abstract Award.   [1:45] Holly, a feeding therapist in Maine, has referred many patients to Dr. Henderson and is excited to have her on the show.   [2:29] Dr. Henderson is a wife and mother. She loves to swim and loves the outdoors. She practices general pediatric GI in Bangor, Maine, at a community-based academic center.   [2:52] Her patient population is the northern two-thirds of Maine. Dr. Henderson feels it is rewarding to bring her expertise from Cincinnati to a community that may not otherwise have access to specialized care.   [3:13] Dr. Henderson’s interest in EoE grew as a GI fellow at Cincinnati Children’s. Her research focused on biomarkers for disease response to dietary therapies and EoE’s relationship to bone health.   [3:36] As a fellow, Dr. Henderson rotated through different specialized clinics. She saw there were many unanswered questions about the disease process, areas to improve treatment options, and quality of life for the patients suffering from these diseases.   [4:00] Dr. Henderson saw many patients going through endoscopies. She saw the social barriers for patients following strict diets. She saw a huge need in EoE and jumped on it.   [4:20] Ryan grew up with EoE. He remembers the struggles of constant scopes, different treatment options, and dietary therapy. Many people struggled to find what was best for them before there was a good approved treatment.   [4:38] As part of Ryan’s journey, he learned he has osteoporosis. He was diagnosed at age 18 or 19. His DEXA scan had such a low Z-score that they thought the machine was broken. He was retested.   [5:12] Dr. Henderson explains that bone mineral density is a key measure of bone health and strength. Denser bones contain more minerals and are stronger. A low bone mineral density means weaker bones. Weaker bones increase the risk of fracture.   [5:36] DEXA scan stands for Dual Energy X-ray Absorptiometry scan. It’s a type of X-ray that takes 10 to 30 minutes. A machine scans over their bones. Typically, we’re most interested in the lumbar spine and hip bones.   [5:56] The results are standardized to the patient’s height and weight, with 0 being the average. A negative number means weaker bones than average for that patient’s height and weight. Anything positive means stronger bones for that patient’s height and weight.   [6:34] A lot of things can affect a patient’s bone mineral density: genetics, dietary history, calcium and Vitamin D intake, and medications, including steroid use. Prednisone is a big risk factor for bone disease.   [7:07] Other risk factors are medical and auto-immune conditions, like celiac disease, and age. Any patient will have their highest bone density in their 20s to 30s. Females typically have lower bone mineral density than males.   [7:26] The last factor is lifestyle. Patients who are more active and do weight-bearing exercises will have higher bone mineral density than patients who have more of a sedentary lifestyle.   [7:56] Ryan was told his bone mineral density issues were probably a side-effect of the long-term steroids he was on for his EoE. Ryan is now on benralizumab for eosinophilic asthma. He is off steroids.   [8:36] Dr. Henderson says the research is needed to find causes of bone mineral density loss besides glucocorticoids.   [8:45] EoE patients are on swallowed steroids, fluticasone, budesonide, etc. Other patients are on steroids for asthma, eczema, and allergic rhinitis. These may be intranasal steroids or topical steroids.   [9:01] Dr. Henderson says we wondered whether or not all of those steroids and those combined risks put the EoE population at risk for low bone mineral density. There’s not a lot published in that area.   [9:14] We know that proton pump inhibitors can increase the risk of low bone mineral density. A lot of EoE patients are on proton pump inhibitors.   [9:23] That was where Dr. Henderson’s interest started. She didn’t have a great way to screen for bone mineral density issues or even know if it was a problem in her patients more than was expected in a typical patient population.   [9:57] Holly wasn’t diagnosed with EoE until she was in her late 20s. She was undiagnosed but was given prednisone for her problems. Now she wonders if she should get a DEXA scan.   [10:15] Holly hopes the listeners will learn something and advocate for themselves or for their children.   [10:52] If a patient is concerned about their bone mineral density, talking to your PCP is a perfect place to start. They can discuss the risk factors and order a DEXA scan and interpret it, if needed.   [11:11] If osteoporosis is diagnosed, you should see an endocrinologist, specifically to discuss therapy, including medications called bisphosphonates.   [11:36] From an EoE perspective, patients can talk to their gastroenterologist about what bone mineral density risk factors may be and if multiple risk factors exist. Gastroenterologists are also more than capable of ordering DEXA scans and helping their patients along that journey.   [11:53] A DEXA scan is typically the way to measure bone mineral density. It’s low radiation, it’s easy, it’s fast, and relatively inexpensive.   [12:10] It’s also useful in following up over time in response to different interventions, whether or not that’s stopping medications or starting medications.   [12:30] Dr. Henderson co-authored a paper in the Journal of Pediatric Gastroenterology and Nutrition, called “Prevalence and Predictors of Compromised Bone Mineral Density in Pediatric Eosinophilic Esophagitis.” The study looked at potential variables.   [12:59] The researchers were looking at chronic systemic steroid use. They thought it was an issue in their patients, especially patients with multiple atopic diseases like asthma, eczema, and allergic rhinitis. That’s where the study started.   [13:22] Over the years, proton pump inhibitors have become more ubiquitous, and more research has come out. The study tried to find out if this was an issue or not. There weren’t any guidelines for following these patients, as it was a retrospective study.    [13:42] At the time, Dr. Henderson was at a large institution with a huge EoE population. She saw that she could do a study and gather a lot of information on a large population of patients. Studies like this are the start of figuring out the guidelines for the future.   [14:34] Dr. Henderson wanted to determine whether pediatric patients with EoE had a lower-than-expected bone mineral density, compared to their peers. [14:44] Then, if there were deficits, she wanted to determine where they were more pronounced. Were they more pronounced in certain subgroups of patients with EoE?   [14:59] Were they patients with an elemental diet? Patients with an elimination diet? Were they patients on steroids or PPIs? Were they patients with multiple atopic diseases? Is low bone mineral density just a manifestation of their disease processes?   [15:14] Do patients with active EoE have a greater propensity to have low bone mineral density? The study was diving into see what the potential risk factors are for this patient population.   [15:45] The study was a retrospective chart review. They looked at patients aged 3 to 21. You can’t do a DEXA scan on a younger patient, and 21 is when people leave pediatrics.   [16:03] These were all patients who had the diagnosis of EoE and were seen at Cincinnati Children’s in the period between 2014 and 2017. That period enabled full ability for chart review. Then they looked at the patients who had DEXA scans.   [16:20] They did a manual chart review of all of the patients and tried to tease out what the potential exposures were. They looked at demographics, age, sex, the age of the diagnosis of EoE, medications used, such as PPIs, and all different swallowed steroids.   [16:44] They got as complete a dietary history as they could: whether or not patients were on an elemental diet, whether that was a full elemental diet, whether they were on a five-food, six-food, or cow’s milk elimination diet.   [16:58] They teased out as much as they could. One of the limitations of a retrospective chart review is that you can’t get some of the details, compared to doing a prospective study. For example, they

    33 min
  2. 30 MAY

    Common Nutritional Deficiencies that Affect Those with Non-EoE EGIDs

    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Bethany Doerfler, MS, RDN, a clinical research dietician specializing in lifestyle management of digestive diseases at Northwestern Medicine. Ryan and Holly discuss managing nutritional deficiencies in patients with non-EoE EGIDs and a study Bethany worked on. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own.   Key Takeaways: [:50] Co-host Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, Sanofi, Regeneron, and Takeda. Ryan introduces co-host Holly Knotowicz.   [1:17] Holly introduces today’s topic, common nutritional deficiencies that affect those with eosinophilic gastrointestinal diseases that occur in the GI tract lower than the esophagus (non-EoE EGIDs).   [1:31] Holly introduces today’s guest, Bethany Doerfler, a clinical research dietician specializing in lifestyle management of digestive diseases, including gastroesophageal reflux disease, motility disorders, and eosinophilic diseases.   [1:45] Bethany currently practices as part of a multi-disciplinary team in a digestive health institute at Northwestern Medicine.   [2:03] Bethany began working with this disorder almost 20 years ago. She worked with Dr. Gonsalves and Dr. Hirano at Northwestern. Dr. Gonsalves invited her to work with EoE patients. Bethany had not heard of EoE.   [2:59] Bethany says the lens that we’ve used to look at food as the trigger and also a therapeutic agent in the esophagus, we’re looking at in non-EoE EGIDs as well; at the same time, trying to make sure that we’re honoring the other parts of our patient’s lives.   [3:27] Before Bethany started working in GI at Northwestern, she worked in the Wellness Institute, doing nutrition for patients at Northwestern. Bethany has a research background in epidemiology and she wanted to see better nutrition research in GI.   [3:56] Through a friend, Bethany connected with the Chief of GI at that point. Northwestern had never had a dietician working in GI.   [4:08] Bethany is pleased to see a trend in healthcare of thinking about the patient as a whole person, including diet, psychological wellness, physical health, exercise, sleep, and more. Bethany wanted to see more research on GI disorders.   [4:38] Bethany says that eosinophils in the esophagus indicate that something is irritating the tissues, such as reflux, food triggers, aeroallergens, and other things.   [4:58] Eosinophils do belong in the stomach, the small intestine, and the colon. The challenge for researchers has been, how many, where are they supposed to live, and what are they supposed to look like.   [5:10] There is eosinophilic gastritis, where eosinophils can infiltrate the stomach, causing a lot of inflammatory responses that make patients sick. We see that in all parts of the small intestine and less commonly, in the colon, as well.   [5:32] It’s a good reminder for listeners that eosinophils are white blood cells. When they’re in the tissues, they can swell things up and cause the body to have this inflammatory response in these lower GI tract organs.   [5:49] The symptoms patients can experience are vomiting, diarrhea, and abdominal pain, among other things.   [6:14] The nomenclature for this subset of eosinophil-associated diseases has changed and Bethany says to hang tight, there is lots of work underway to nail this down further in the next couple of months to a year.   [6:29] The last guidelines were published by a Delphi Consensus in 2022. The experts in the field got together and voted on the scientific accuracy of certain statements to develop cut points for how to grade.   [6:48] The experts are asking questions like: What counts as eosinophilic gastritis? What do we think are some of the symptoms and the clinical findings so that we all are looking at things through the same lens?   [7:02] To get to these consensus statements, there’s a lot of discussion, agreement, and good collegial discussions about making sure that we’re looking at this accurately.   [7:12] We’re trying to give the right names to the right disorders and give clear diagnostic criteria, so that we’re helping our patients get a diagnosis, and we’re not labeling something incorrectly and sticking someone with an inaccurate diagnosis.   [7:36] The proper terminology is eosinophilic gastritis in the stomach, eosinophilic enteritis in the small intestine, eosinophilic colitis in the colon, and eosinophilic gastroenteritis where the stomach and the small bowel are involved.   [7:53] There’s more to come on the clinical criteria of what makes that diagnosis but we’re getting the names and the numbers right.   [8:03] Holly agrees that having the symptoms given a named diagnosis is important to patients, knowing that researchers are looking into their illness.   [9:00] Bethany notes that the diagnosis also means that there are opportunities for medical therapy, cut points for which medicines or therapies work or not, and billing codes. If we can’t bill insurance companies, patients might not get certain services.    [9:28] Ryan tells how beneficial it was for him to have access to multi-disciplinary teams and see specialists he might not have seen without the proper diagnosis and just thought it was a GI issue. He was fortunate to see a dietician and start dietary therapy.   [9:53] Bethany says the dietician’s priority is the patient’s health and wellness.   [10:13] These disorders carry clinical non-gastrointestinal manifestations: fatigue, concern over what to eat, food access issues, family support, and other food allergies. These are important things for a dietician to consider.   [10:37] Are patients growing as they should? Do they feel like they have enough to eat? Do they feel excluded in social settings? There’s a list of important things that we want to be looking at. That’s why it’s important to have a multi-disciplinary approach.   [11:07] First, Bethany wants to see that her patients are physically and nutritionally well. That’s a priority if we’re going to try to get rid of some of the food triggers that could be exacerbating the disease.   [11:20] Before Bethany takes anything out of someone’s diet, she wants to make sure that they’re getting enough of the good stuff to help them feel good and grow.   [11:29] From a diet therapy perspective, Bethany is trying to apply a food removal or substitution protocol to other spots outside the esophagus. They’re seeing that some of the triggers are very similar, both in the stomach and small intestine.   [12:09] Dr. Gonsalves, Dr. Hirano, and Bethany did a study, The Elemental Study, where they wanted to uncover if food proteins carried the same trigger risk in the stomach and small intestine as they do in the esophagus.   [12:35] They put their patients on a hypoallergenic elemental formula for a period, followed up, and looked at their biopsies of the stomach and small intestine. Fifteen wonderful patients made it through the trial.   [12:56] One hundred percent of the patients achieved disease remission and felt better. There were some genetic alterations in the patients. Then they started the process of reintroducing foods over the year.   [13:15] That was not part of the original grant but was the team’s clinical interest to see what it is that people are allergic to. Some of the common suspects: wheat, dairy, eggs, soy, and nuts, were found to be very common triggers for EoG and EoN, as well.   [13:47] The benefit of working with a dietician as part of your team is, first, we can remediate things the disease has caused nutritionally, and second, we can think about how diet can be a therapeutic tool to use with medications or instead of medication.   [14:15] If you want to use nutrition therapeutically, you don’t have to stay there if it’s not the right time to be taking things out of your diet. We have some good, safe, medical therapies. You can find your food triggers but you don’t have to pick that lane forever.   [14:42] Holly and Ryan relate their experiences with traveling abroad and going on medical therapies when they can’t stay on their diets.   [15:57] Bethany says low levels of vitamins and minerals in the blood can be caused by a disorder or an elimination diet. In the U.S., dairy is the biggest source of protein for young kids. It’s also the biggest source of calcium and vitamin D.   [16:22] Dieticians often say, if we are going to use dietary therapy for EoE or non-EoE EGIDs, we have to think of this as a substitution diet. If we remove something, we have to replace it with something equally nutrient-dense.   [16:39] Bethany and her group look at serum values of Vitamin D, B12, and iron they assess for patients. For kids, instead of drawing blood, they piece together what they’re taking against what they need and see if there are gaps to fill with food or supplements.   [17:32] In patients with non-EoE EGIDs, Bethany says we see the disease intersect with the food supply. When we take milk out, we’re cutting the biggest source of calcium and Vitamin D. We have to replace calcium and Vitamin D.   [17:55] In the 1950s, a public health law allowed wheat to be enriched with folic acid

    41 min
  3. 30 APR

    Comparing Pediatric and Adult EoE

    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Dr. Melanie Ruffner, an Attending Physician with the Division of Allergy and Immunology and the Center for Pediatric Eosinophilic Disorders at Children’s Hospital of Philadelphia. Dr. Ruffner describes her work in clinic and the paper she co-authored about pediatric and adult eosinophilic esophagitis (EoE). She covers the questions they considered in the paper and the conclusions they reached. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own.   Key Takeaways: [:49] Co-host Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, GSK, Sanofi, Regeneron, and Takeda. Ryan introduces co-host Holly Knotowicz.   [1:17] Holly introduces today’s topic, pediatric and adult eosinophilic esophagitis (EoE), and introduces today’s guest, Dr. Melanie Ruffner.   [1:23] Dr. Melanie Ruffner is an attending physician with the Division of Allergy and Immunology in the Center for Pediatric Eosinophilic Disorders at Children’s Hospital of Philadelphia. Holly welcomes Dr. Ruffner to Real Talk.   [1:50] As an attending physician in the Center for Pediatric Eosinophilic Disorders at Children’s Hospital of Philadelphia, Dr. Ruffner sees patients who have eosinophilic esophagitis and other eosinophilic disorders, including eosinophilic GI tract disorders.   [2:09] Dr. Ruffner also leads a research group that studies how the immune system causes inflammation in response to certain foods, leading to EoE.   [2:20] Inflammation in the esophagus is tied to other diseases like epithelial barrier dysfunction and fibrosis.   [2:28] Our bodies use many different proteins that allow cells to communicate with one another. One type of signaling protein that causes inflammation is called cytokines.   [2:41] Dr. Ruffner’s group is interested in how these signaling proteins called cytokines interact with epithelial cells and how that impacts the oral function of the esophagus in patients with EoE.   [3:02] In training, Dr. Ruffner became interested in eosinophilic esophagitis and other non-IgE-mediated food allergies because we don’t have a lot of clear treatments or clear mechanisms that cause them.   [3:21] Dr. Ruffner felt there was a lot of work to be done in that area. It was rewarding to be in clinical encounters with those patients. Often, patients had spent a long time trying to find out what was happening and to find a treatment plan that worked for them.   [4:31] Dr. Ruffner’s group sees some patients who have eosinophilic gastroenteritis and patients who are referred for hypereosinophilia with impacts of inflammation in other organ systems.   [5:06] Dr. Ruffner co-authored a paper about pediatric and adult EoE published in the Journal of Allergy and Clinical Immunology. It explored if EoE in pediatric patients and adult patients is a spectrum or distinct diseases.   [5:29] EoE is a chronic allergic condition that affects the esophagus. The esophagus carries food from the mouth to the stomach. In people with EoE, the immune system overreacts to foods and causes inflammation in the esophagus.   [5:47] Eosinophils are a type of white blood cell. Eosinophils infiltrate the tissue in the esophagus of people with EoE. Doctors look for eosinophils in the tissue of the esophagus as a sign that inflammation in the esophagus is EoE.   [6:04] The symptoms of EoE can vary in children and adults. That was one of the things the doctors were interested in when they were thinking about this paper. There are no blood or allergy tests that make it easy to diagnose EoE, which requires an endoscopy.   [6:31] An endoscopy is performed by a gastroenterologist. The gastroenterologists look at the appearance of the esophagus and take biopsies.   [6:49] A pathologist counts the eosinophils in the tissue to determine if there are eosinophils present. If there are more than 15 eosinophils in the high-powered field of the microscope and symptoms and clinical conditions are present, EoE is diagnosed.   [7:25] One of the variables Dr. Ruffner considers is that symptoms can be different in children versus adults. In older adolescents and adults, the classic symptom is difficulty swallowing or dysphagia. That is often caused by fibrosis in the esophagus.   [7:54] In younger children this is often not how EoE presents. They may vomit or refuse food. They may experience more weight loss. Symptoms vary over the lifespan. Pediatric EoE symptoms of nausea and abdominal pain can also show up in adults.   [9:54] Atopy refers to allergic conditions. In the paper, a history of atopy means a history of allergic conditions, like atopic dermatitis, IgE-mediated food allergy, allergic rhinitis, or asthma.   [10:37] These disorders tend to cluster together, over time, because they share many common genetic risks. They cluster in families because some of the genetic risks are the same. Not every family member will have the same atopic or allergic conditions.   [11:07] In families, perhaps one person will have atopic dermatitis and allergic rhinitis while another will have atopic dermatitis, allergic rhinitis, asthma, and EoE. They may have inherited different genetics or had different environmental exposures.   [11:50] Ryan says that describes his family. They each have different atopic conditions. Ryan got them all! Dr. Ruffner says it describes her family, as well.   [12:26] Dr. Ruffner says it’s understandable for families to stress about atopic conditions. Unfortunately, right now, there’s no way to predict who will develop which atopic conditions. It’s on the minds of the medical and research communities.   [13:10] IgE is an antibody that binds to food allergens and mediates anaphylaxis, usually within 30 minutes, with hives, vomiting, and difficulty breathing. Not everyone with a diagnosed food allergy will be given an epinephrine auto-injector.   [13:44] IgE-mediated food allergies are influenced by type 2 cytokines. Cytokines are immune system signaling proteins that have been labeled as groups. The group that is involved in allergy most heavily is under the label type 2.   [14:15] These type 2 cytokines are responsible for influencing B cells to make IgE. In the tissue in EoE, we find that there is a large amount of these type 2 cytokines present.   [14:37] This is quite relevant because dupilumab, the monoclonal antibody that has been approved to treat EoE, targets type 2 inflammation by blocking type 2 cytokines.   [16:04] Dr. Ruffner says one of the biggest challenges in the field of EoE is we don’t have a way to stratify who should get which treatment for EoE. Patients have to choose between diet and pharmacologic therapy.   [16:48] We don’t know enough about the inflammatory profiles to give any patient the specific guided information that one therapy would be better than another.   [17:11] Pediatric and adult patients are given the same treatment options. Some dosing, such as proton pump inhibitors and dupilumab, is weight-based so different doses are needed.   [17:36] Over time, people’s needs change. From early school age to when people leave home, they may have very different needs. They may do well on diet therapy when their diet is controlled by parents, but, on their own, that may not be the best option for them.   [18:20] Therapy may change over time to support each patient’s individual goals. It can be challenging because therapies are imperfect. Each therapy has a percentage probability of success. Not every therapy is guaranteed to work for every individual.   [19:01] There is some flexibility and possibility of switching between therapies to support people. Ryan shares one of his experiences in changing treatments.   [20:03] Some patients are stable on a therapy for a time but then see symptoms creep back up. Dr. Ruffner strongly suggests they talk to their care team for an endoscopy and biopsy to see if they need to switch therapy and if their diet has changed.   [21:31] In young children, Dr. Ruffner sees a much higher incidence of feeding refusal. The child may have a preferred food or a preferred texture like puree, long past when that would be appropriate for the age.   [22:41] It can be very difficult to move past this learned behavior even if remission is achieved through therapy. The child may need feeding therapy to help with that. [22:59] Feeding behaviors in older individuals may be much more subtle. Talk about them with your care team. Needing water to eat, cutting food very small, and fearing to eat around people are common eating behaviors to discuss in older patients.   [23:53] These eating behaviors affect people’s well-being deeply because they affect how social they feel when they are around people. Ideally, you want to be around people and share in social times.   [24:16] Holly has used these eating behaviors herself and notices them in other people. When adults come to her for therapy, she asks how many times they refill their water when they eat, and if food ever gets stuck. They are surprised that those are symptoms.   [26:01] Dr. Ruffner says it’s important to recognize the difference in symptoms in diagnosing EoE. The main risk factor of EoE is fibrosis, over time. The thought is that

    39 min
  4. 25 MAR

    Full Circle: An Immunologist’s Unexpected EoE Journey

    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Dr. John Accarino, an allergist and immunologist at Massachusetts General Hospital and Mass General for Children, on the topic of immunology support for eosinophilic esophagitis (EoE). Dr. Accarino shares his experiences as a person living with food allergies, allergic asthma, peanut allergy, and eosinophilic esophagitis. He tells how his experiences help him in his work with patients. Dr. Accarino shares some education on a variety of allergy mechanisms and the treatments that mitigate them. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own.   Key Takeaways: [:49] Co-host Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, GSK, Sanofi, and Regeneron. Ryan introduces co-host Holly Knotowicz.   [1:14] Holly introduces today’s topic, immunology support for eosinophilic esophagitis (EoE), and introduces today’s guest, Dr. John Accarino, an allergist and immunologist at Massachusetts General Hospital. Holly welcomes Dr. Accarino to Real Talk.   [1:49] Holly notes that Dr. Accarino is her allergist and immunologist.   [2:03] Dr. Accarino works at Massachusetts General Hospital and Mass General for Children. Allergy and Immunology is a field where he can see pediatrics and adults. Originally trained in pediatrics, now Dr. Accarino sees patients of all ages.   [2:23] Dr. Accarino grew up with allergies. He has experienced food allergies since he was young, along with allergic asthma, and some eczema, which he grew out of. Later in life, he was diagnosed with eosinophilic esophagitis. He talks with his patients about his experiences.   [2:47] Dr. Accarino also does research on drug allergies in the context of certain drug interactions that involve eosinophils.    [3:06] When Holly was referred to Dr. Accarino, it was for multiple sclerosis (MS). He told her, “It looks like you have EoE. I have EoE.” It was a huge relief to Holly not to have to explain EoE to her doctor.   [3:41] Some patients start to explain their EoE to Dr. Accarino, and he assures them he understands where they’re coming from. Sometimes, he has to be careful not to think everyone has his symptoms, as there is a large spectrum of presentations.   [4:26] Dr. Accarino wasn’t diagnosed with EoE until he was in his allergy fellowship, after he suspected it when he had a food impaction at a steakhouse at a graduation party from his pediatric residency. He tried to manage the EoE with lifestyle changes.   [5:39] Dr. Accarino didn’t often go to see a doctor during residency, but he realized it was probably a good time to get an endoscopy.   [5:52] Holly shares how she was also diagnosed as a clinical fellow. She was subbing for someone on the GEDP team at Children’s Hospital in Colorado. Listening to all the patients, she realized, “This sounds a little bit like me … What is going on?”   [6:23] Even with his medical background, it took Dr. Accarino some time to decide to get the endoscopy and biopsies. You or your doctor have to have a high level of suspicion to realize this isn’t just reflux. Food doesn’t get stuck in every person’s throat.   [7:01] Thinking back, Dr. Accarino remembers an instance as a child when a dry muffin got stuck in his throat. He stayed calm and waited for it to pass. He thought it was normal.   [7:39] He drank a lot of water and chewed his food a lot. Those are markers of potential esophageal inflammation.   [8:20] Different groups have different management strategies for EoE. Dietary management, topical steroids, biologics. A subgroup of people with EoE are responsive to proton pump inhibitors (PPIs). Finding the best management strategy is a work in progress.   [8:53] With pediatric patients, the parents control the diet, and the children eat what is prepared. He notes that with adult patients, sometimes they let foods slip through.   [9:10] If you want to do a single-food elimination diet with dairy, there’s a lot of dairy in the American diet. Dr. Accarino tried eliminating dairy and wheat, but he still had persistent eosinophils with dietary elimination.   [9:24] Dr. Accarino then tried PPIs. To know if you have PPI-responsive EoE, you might do twice-daily omeprazole at a significant dose. Have the endoscopy after a few weeks pass and see if the eosinophils are still present in the biopsy.   [9:59] Dr. Accarino did that recently and still has the eosinophils. He plans to talk to his gastroenterologist about considering dupilumab, but he feels that he can mitigate his subjective day-to-day experience of symptoms with dietary elimination and PPIs.    [10:24] If you still have the presence of eosinophils on biopsy, there’s still inflammation happening. In the long term, you still have to worry about fibrosis and narrowing.    [10:34] The last treatment Dr. Accarino tried was as a research participant in a study for dissolvable fluticasone. He received either the medication or a placebo; he doesn’t know which.   [11:01] To stay in the study, he had to journal and report his symptoms regularly. He didn’t have enough symptoms to stay in the study. They were looking for a baseline to see how it changed with either the placebo or the medication.   [11:20] In research, you have to have a baseline to start, and then you want to see improvement, plus or minus. With EoE, it’s difficult. You have the biopsy and eosinophils, but there’s a large spectrum of symptoms that people may experience.   [12:40] Holly appreciates Dr. Accarino’s unique perspective as a doctor with EoE who has experienced various treatments and diets. He understands the concerns of his patients.   [12:43] Dr. Accarino says even taking a twice-daily PPI or other medication is difficult for a lot of people, and that’s the most simple of these therapies.   [13:06] Dr. Accarino wants to validate everyone’s experience in terms of how difficult it is to treat this disorder, how it may present in different ways, and how there may be a delay in diagnosis.   [13:16] This isn’t IgE-mediated immediate food allergy, where you eat a food and may have swelling within minutes; you may have flushing or hives. That’s very clear. With EoE, it’s a different mechanism; in many cases, there is a delay.   [14:37] Allergy, in general, is under the purview of clinical immunology. Dr. Accarino is allergic to peanuts and has an  IgE-mediated immediate reaction to them. If he eats a peanut, he has symptoms within minutes. He could have anaphylaxis. As a result, he carries an epinephrine auto-injector.   [15:01] If Dr. Accarino has a skin test, it will be positive for peanut. He has IgE antibodies to peanuts. He also has oral allergy syndrome where the body mistakes certain fruits, vegetables, or nuts with certain tree pollens or grass pollens.   [15:23] Oral allergy syndrome is usually a lower-risk condition where it’s a less-stable protein that once cooked might not produce any symptoms. If it’s raw when you consume it, you may have oral itching, a bit of throat discomfort, or tongue itching. [15:54] Your stomach acid breaks it down so it doesn’t get into your bloodstream and you shouldn’t have a systemic reaction.   [16:01] If Dr. Accarino eats a peanut, his stomach acid doesn’t break down the high-risk, stable peanut protein, it gets into his bloodstream, and he can have a systemic anaphylactic reaction.   [16:20] Chronic EoE symptoms can present with something like a food impaction, or bad reflux or belly pain, and nausea. The reaction may not be immediate. It may be progressive over days or weeks.   [16:38] FIRE is an interesting condition that takes some time to narrow down. It’s an immediate response of the esophagus, but we don’t think it’s histamine-mediated.   [16:56] We don’t know, exactly, the mechanism but it’s in people with eosinophilic esophagitis. They feel differently, and there would be different specific food triggers.   [17:11]  It took some time to figure out what was going on. Dr. Accarino felt like he had a lump in his throat, then a lump in his chest, nausea, and belly pain. It felt like a slow progression of EoE symptoms, and it was from specific food triggers, in his case.   [17:30] In some of the FIRE literature, they looked at banana and avocado. For Dr. Accarino, it took a couple of exposures to protein bars and milk protein whey isolate, specific to protein bars he had multiple times, until he figured out that was the trigger.   [17:50] Another protein whey isolate that Dr. Accarino scooped as a powder and made into a shake also led to FIRE.   [17:55] It took that event for Dr. Accarino to figure out it wasn’t just a flareup of EoE or reflux but some trigger that caused this response that wasn’t anaphylaxis but may be due to the recruitment of eosinophils or some immediate process not well understood.   [18:18] FIRE is going to be very hard to research. How would we figure this out? Would we bring someone in and do an endoscopy immediately and see what happens? There’s a lot of descriptive data and case series.   [18:32] Dr. Accarino has had experiences when he knew it wasn’t an immediate anaphylactic reaction, oral allergy, or reflux. He asked what else it

    39 min
  5. 27 FEB

    The Intersection of Food Allergy and Eosinophilic Esophagitis

    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Dr. Wayne Shreffler, Chief of Pediatric Allergy and Immunology and Co-Director of The Food Allergy Center at Massachusetts General Hospital. Dr. Shreffler is also an investigator at The Center for Immunology and Inflammatory Disease and The Food Allergy Science Initiative. His research is focused on understanding how adaptive immunity to dietary antigens is both naturally regulated and modulated by therapy in the context of food allergy. This interview covers the results of a research paper on The Intersection of Food Allergy and Eosinophilic Esophagitis, co-authored by Dr. Shreffler. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own.   Key Takeaways: [:50] Co-host Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, GSK, Sanofi, and Regeneron. Ryan introduces co-host, Holly Knotowicz.   [1:15] Holly introduces today’s topic, the intersection of food allergy and eosinophilic esophagitis.   [1:26] Holly introduces today’s guest, Dr. Wayne Shreffler, Chief of Pediatric Allergy and Immunology and Co-Director of The Food Allergy Center at Massachusetts General Hospital and an investigator at The Center for Immunology and Inflammatory Disease and The Food Allergy Science Initiative.   [1:43] Dr. Shreffler’s research is focused on understanding how adaptive immunity to dietary antigens is both naturally regulated and modulated by therapy in the context of food allergy.   [1:54] Holly welcomes Dr. Shreffler to Real Talk. When Holly moved to Maine, she sent her patients to Dr. Shreffler at Mass General.   [2:25] Dr. Shreffler trained in New York on a Ph.D. track. He was interested in parasitic diseases and the Th2 immune response. Jane Curtis, a program director at Albert Einstein College of Medicine, encouraged him to consider MD/PhD programs. He did.   [3:31] Jane Curtis connected him to Hugh Sampson, who was working with others to help understand the clinical prevalence of food allergy and allergens.   [3:51] As a pediatric resident, Dr. Shreffler had seen the burden of allergic disease, caring for kids in the Bronx with asthma. His interest in Th2 immunity, the clear and compelling unmet clinical need, and the problem of food allergy guided his career.   [4:31] Dr. Shreffler’s wife has food allergies and they were concerned for their children. Fortunately, neither of them developed food allergies.   [5:21] Dr. Shreffler thinks the food allergy field has a lot of people who gravitate toward it for personal reasons.   [5:53] Food allergy is an adverse response to food that is immune-mediated. There is still uncertainty about this but Dr. Shreffler believes that a large percentage of patients with EoE have some triggers that are food antigens.   [6:27] The broad definition of food allergy would include things like food protein-induced enterocolitis syndrome (FPIES).   [6:47] The way we use the term food allergy in the clinic, there are two forms: IgE-mediated allergies and non-IgE-mediated allergies, including EoE.   [7:40] Some patients have food-triggered eczema, some have FPIES.   [8:04] In 2024, Dr. Shreffler and Dr. Caitlin Burk released a paper that looked at the triggers of EoE, particularly the intersection of IgE-mediated food allergy and EoE.   [8:41] Dr. Caitlin Burk joined the group as they were publishing papers on IG food allergy and EoE. It was a moment where things unexpectedly came together.   [9:17] Adaptive immunity to food proteins comes from antibodies that cause milk allergy, egg allergy, peanut allergy, or multiple allergies. The IgE has specificity.   [9:40] T cells also are specific to proteins. They express a host of receptors that recognize almost anything the immune system might encounter. They have a long memory like B-cells.   [10:09] The overlap in these two threads of research was regarding a population of T cells that are important for mediating chronic inflammation at epithelial sites, including the gut.   [10:36] These T cells have been described in the airways in asthma, in the skin in eczema, and the GI tract. Researchers years ago had also described them as being associated with IgE food allergy. People with IgE food allergies avoid allergens.   [11:13] T cells, being associated with chronic allergic inflammation, now being associated with food allergies which are not having chronic exposures to the allergen, was interesting and surprising.   [11:30] Dr. Shreffler and his group found the T cell subset in patients who don’t do well with Oral Immunotherapy (OIT) and patients who have EoE with immediate symptoms.   [12:01] Dr. Shreffler notes differences. There are immediate symptoms of IgE food allergy. There is a subset of patients with EoE who have immediate symptoms that are not fully understood. Maybe IgE plays a role there.   [12:28] There are different mechanisms for how symptoms are caused and so different ways of making a diagnosis. A food allergy with an IgE antibody can be measured through skin tests and blood tests. This can help identify which foods are the trigger.   [12:57] This common T cell subset that we see in EoE and food allergy, helps to explain why IgE alone is not always a very specific marker for identifying people who will have immediate reactions when they’re exposed to the food.   [13:17] For patients who react at low levels, it’s not just that they have more or better IgE but they also have an expansion of these T cells that are common between EoE and other chronic forms of allergy and IgE food allergy.   [13:41] There’s a lot to learn that might be relevant for patients about this T cell subset.   [14:23] These T cells are a specific subset of the group of Th2 T cells, which are a subset of all CD4 T cells. Some CD4 T cells are important for responding to viruses and tumors. Others are important for responding to outside allergens.   [15:01] In an allergy or a parasite infection, Th2 T cells are important. There is a subset of T cells that is driven by repetitive and chronic exposure to the triggering protein, antigen, or allergen.   [15:47] Most antigens are proteins that trigger an immune response. An antigen that elicits an allergic response is an allergen. [16:30] A food trigger is a protein antigen that is an allergen. In IgE, food allergies, milk, and eggs are prevalent triggers early in life. For reasons not well understood, a lot of people outgrow them. In older patients, peanut and tree nut allergies are prevalent.   [17:01] In EoE, milk is one of the most common dietary triggers into adulthood. Some patients with IgE allergy to milk can tolerate it if it’s well cooked. Patients with EoE are less likely to be able to get away with regular and ongoing exposure to milk protein.   [17:54] Milk, eggs, and nuts are common triggers in both conditions. There can also be rare food allergy triggers. That’s part of the early evidence that the adaptive immune response was likely to be involved. It can be so specific for some people to rare things.   [18:20] Hallmarks of something being immune-mediated are that it is reproducibly demonstrable as a trigger. It’s going to be long-lived. It’s going to be generally relatively small amounts. The immune system is good at detecting small exposures.   [19:07] EoE is tricky because there’s not that clear and easy temporal association between an offending allergen exposure for most people and their symptoms. People don’t associate the symptoms with the triggers.   [20:14] A history of having blood in the stools can be milk-allergen-driven and was associated with a diagnosis of EoE in those kids when they’re older.   [20:26] There are a lot of commonalities in the allergens but it’s not always obvious clinically.   [22:40] A challenge in diagnosing EoE is that providers have to be on guard against their biases. They have to give a patient good advice. In EoE there is no test to identify triggers, except rigorous introduction, elimination, reintroduction, and endoscopies.   [24:18] For some of Dr, Shreffler’s patients, it becomes less important to know their dietary triggers. They gravitate toward an approved form of treatment that may, if successful, allow them to have a more normal diet because of effective medication.   [24:50] Dr. Shreffler thinks there are other triggers, including pollens. There is evidence of seasonality of active EoE in patients shown to have allergic sensitization to pollens. That’s indirect evidence. If the body is making IgE, it’s likely making other responses.   [25:32] There are questions about how large the population of patients is who have EoE that may be more intrinsically than extrinsically driven because of genetic variations.   [25:54] Dr. Shreffler believes that EoE in some patients is allergen-driven and in some patients EoE is food-driven. Food is a trigger for the majority of pediatric patients and a large percentage of adult patients but not necessarily the exclusive trigger.   [27:04] If a patient is motivated to learn what dietary triggers may be at play, Dr. Shreffler often makes assessments outside of pollen season for allergens to which the patient has demonstrated positivity.   [28:09] Looking at the ep

    50 min
  6. 22 JAN

    Guidelines for Childhood non-EoE EGIDs

    Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Dr. Margaret Collins, a professor of pathology at the University of Cincinnati and a staff pathologist at Cincinnati Children’s Hospital Medical Center. Dr. Collins was a member of the task force that produced the Guidelines on Childhood EGIDs Beyond EoE. In this interview, Dr. Collins discusses the guidelines and how they were created and shares some of the results, including an algorithm for diagnosing non-EoE EGIDs. She shares why she specialized in EGIDs and what her hopes are for the future development of the guidelines. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own.   Key Takeaways: [:49] Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, GSK, Sanofi, and Regeneron, and co-host, Holly Knotowicz.   [1:13] Holly introduces today’s topic, guidelines for childhood eosinophilic gastrointestinal disorders (EGIDs) beyond eosinophilic esophagitis (EoE).   [1:27] Holly introduces today’s guest, Dr. Margaret Collins, a professor of pathology at the University of Cincinnati and a staff pathologist at Cincinnati Children’s Hospital Medical Center.   [1:38] Dr. Collins specializes in the pathology of pediatric gastrointestinal disease, especially EGIDs, and is a central pathology reviewer for the Consortium of Eosinophilic Gastrointestinal Researchers (CEGIR), as well as a member of APFED’s Health Sciences Advisory Council.   [2:11] As a pathologist, Dr. Collins examines biopsies microscopically. For EGIDs, she determines the peak count of eosinophils per high-power field, or reports the numbers of eosinophils in multiple high-power fields, and analyzes the tissue for additional abnormalities.   [2:33] Dr. Collins then issues a report that becomes part of the patient’s medical record and is provided to the patient’s doctor.   [2:41] The biopsies Dr. Collins examines may be the first biopsies for a diagnosis, or follow-up biopsies to determine response to therapy, or as part of ongoing monitoring to determine if inflammation has returned even if the patient has no symptoms.   [3:07] Dr. Collins was inspired to specialize in EGIDs after speaking with patients with EGIDs. She used to give tours of the pathology lab at Cincinnati Children’s Hospital. She met affected children and their caregivers. Their courage and gratitude moved her.   [3:43] Ryan mentions the wonderful patients and their families in the APFED community. Holly says that as a patient, it’s fascinating to meet a pathologist. Pathologists are generally behind the scenes.   [4:42] Dr. Collins specializes in GI pathology, including eosinophilic-related conditions in the GI tract. EoE, eosinophilic gastritis, eosinophilic enteritis, and eosinophilic colitis.   [5:16] In January 2024, “Guidelines on Childhood EGIDs Beyond EoE” were published in the Journal of Pediatric Gastroenterology and Nutrition. Dr. Collins served on the task force that prepared the guidelines.   [5:35] Non-EoE EGIDs affect all sites of the GI tract except the esophagus. All sites of the GI tract except the esophagus normally have eosinophils in the mucosa, which complicates the diagnosis.   [6:03] Like EoE, the diagnosis of non-EoE EGIDs is made after known causes of tissue eosinophilia are excluded.   [6:28] Consensus guidelines help bring attention to best practices and encourage uniformity of practices.    [6:50] This is especially important for rare diseases and for centers that see fewer patients with rare diseases than the more specialized centers. Guidelines based on the best information available help these centers.   [8:03] The best distribution of guidelines is to publish them in the medical literature and sometimes in multiple journals to target audiences of allergists, gastroenterologists, and pathologists. Guidelines may be presented at national meetings to increase awareness.   [8:36] Several specialties are involved in the care of patients who have EGIDs. If patients or caregivers learn of published guidelines, they can also inform their providers.   [9:23] Insurance is a big issue for so many patients. Getting coverage for both diagnostic and treatment options can be complex.    [9:50] The guidelines may be helpful to insurance companies to accept that a certain drug is needed by a patient with a certain condition. However, if the sequence suggested in the guidelines is not followed, there may be difficulty getting coverage in the U.S.   [11:11] Patients can advocate for themselves with insurance companies by explaining that the order of testing is not important but getting the recommended tests done is important.    [11:55] The greatest challenge the task force faced was the lack of large clinical studies and quality research reports. We’re making progress in this field but we’re at the beginning. Dr. Collins is hopeful that progress will be made in the next two to three years.   [12:24] When there were knowledge gaps, the task force filled them in with their published research and their own experiences. It’s always reassuring to have a well-conducted clinical study that verifies that your thinking is correct.   [13:29] How long did it take the task force to create these guidelines? Longer than they wanted it to take! The years they put into composing these guidelines were greater due to the interruption caused by the [COVID] pandemic. They all felt good when they finished.   [14:18] The guidelines were written by 26 authors from five continents. These are international guidelines.   [14:44] Dr. Collins highlights the pathology. The guidelines state that non-EoE EGIDs should be considered clinicopathologic diagnoses, as EoE is, meaning that biopsies from the affected site in the bowel must show excess eosinophils.   [15:10] The guidelines, for the first time, recommend threshold eosinophil values for a diagnosis in the parts of the GI tract other than the esophagus. For a diagnosis of EoE, a threshold value of greater than or equal to 15 eosinophils per high-power field.    [15:36] The guidelines now recommend that for a diagnosis of eosinophilic gastritis, a threshold value of greater than or equal to 30 eosinophils per high-power field is present.   [15:48] For a diagnosis of eosinophilic duodenitis, a threshold value of greater than or equal to 50 eosinophils per high-power field. For a diagnosis of eosinophilic ileitis, a threshold value of greater than or equal to 60 eosinophils per high-power field.   [16:03] For a diagnosis of eosinophilic colitis in the right colon, a threshold value of greater than or equal to 100 eosinophils per high-power field. For a diagnosis of eosinophilic colitis in the transverse and descending colon, a threshold value of greater than or equal to 80 eosinophils per high-power field. [16:12] For a diagnosis in the rectosigmoid, a threshold of greater than or equal to 60 eosinophils per high-power field.   [16:18] These numbers may change over time. One or more thresholds will likely change as we gain more experience with these diseases. The pattern won’t change.   [16:29] Several studies have shown that the normal pattern of eosinophil presence in the mucosa in the GI tract is that the number increases from the stomach to the right colon and then decreases throughout the colon to the rectosigmoid.   [17:40] When giving tours of the hospital, Dr. Collins found that people understood better when they knew the numbers and could see the slides of their biopsies.   [18:48] Dr. Collins found literature reviews that suggested that the GI mucosa was often normal in non-EoE EGIDs. She believes that in the next few years, as we publish more and gain more experience, we will realize that is not the case.   [19:14] There is already a method for scoring the mucosa in the stomach in eosinophilic gastritis (EoG) and there are abnormalities found in a majority of patients. We have to work on the rest of the GI tract.   [19:35] Dr. Collins was surprised that there’s not very good information about the use of proton pump inhibitors (PPIs) in eosinophilic gastritis and eosinophilic duodenitis. There haven’t been studies about that. We need to work on that, too.   [20:47] Dr. Collins isn’t sure we can recognize misconceptions about non-EoE EGIDs at this point. It might be premature to label any belief as a misconception. We thought that eosinophils were responsible for all symptoms in EoE, but we know now that is not true.   [21:10] Dr. Collins thinks we need to wait a bit before we decide that we know for sure all about non-EoE EGIDs. Ryan is excited to learn what the research will show us next.   [21:44] Holly loved learning about the algorithm in the guidelines.   [22:01] Dr. Collins says this is the first effort to create uniformity in the way in which non-EoE EGIDs are diagnosed. This algorithm can change over time. It provides signposts for the diagnosis, based on the information we have currently.   [22:20] The diagnosis of non-EoE EGIDs should rest on symptoms and the detection of dense eosinophilic inflammation in the mucosa by biopsy and the absence of evidence of other diseases, such as parasitic and other diseases, that might cause dense eosinophilic inflammation in the GI tract.   [22:46]

    34 min
  7. 18/12/2024

    Eosinophilic Fasciitis (EF), with Dr. Catherine Sims and Jason Ingraham

    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Jason Ingraham, an adult living with eosinophilic fasciitis (EF), and Dr. Catherine Sims, a rheumatologist at Duke University and a Health Services Research Fellow at the Durham Veterans’ Affairs Hospital. They discuss Jason’s experiences living with EF and Dr. Sims’s experience treating EF. They share Jason’s journey to diagnosis and the importance of working with a group of specialists. They share tips on medication and physical therapy, how to communicate with your medical team, and manage your activity and mindset. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own.   Key Takeaways: [:50] Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, GSK, Sanofi, and Regeneron, and co-host, Holly Knotowicz.   [1:14] Holly introduces today’s topic, eosinophilic fasciitis, with guests, Jason Ingraham and Dr. Catherine Sims.   [1:25] Jason is an adult living with eosinophilic fasciitis (EF). Dr. Sims is a rheumatologist at Duke University and a Health Services Research Fellow at the Durham Veterans’ Affairs Hospital.   [1:52] Dr. Sims explains what EF is. Patients may present with symptoms of large plaques on their skin, edema of arms and legs, Raynaud’s Phenomenon, contractures of arms or legs, limited mobility, or loss of the ability to do tasks they used to do.   [2:42] EF, as with most eosinophilic disorders, doesn't follow the textbook. Some people will present with one symptom and some with multiple symptoms. There is a disconnect between how we diagnose conditions like EF and how patients present.   [3:01] There are major and minor criteria for the diagnosis. As in Jason’s case, it takes time for the symptoms to present. Things develop over time. It took multiple specialists to diagnose Jason.   [3:38] Eosinophilic conditions are incredibly different from each other. When Dr. Sims sees a patient with high eosinophils, she thinks of three major buckets: infection, autoimmune diseases, and cancer.   [4:12] Patients will often see many different specialists. In Jason’s case, they had done a skin biopsy that wasn’t as helpful as they hoped. That led him to get a deep muscle biopsy to collect the lining of the muscle.   [4:47] Fasciitis is the inflammation of the muscle lining or fascia. A sample of the fascia can demonstrate under the microscope if there is a thickening, swelling, or inflammation of the lining of the muscle.   [5:24] Dr. Sims as a rheumatologist treats a number of rare diseases. Eosinophilic fasciitis is an ultra-rare disease.    [5:43] Jason had a local primary care doctor and a rheumatologist who both did a really good job and referred him to Dr. Sims. She had the benefit of their hard work to guide her next steps. Because EF is so rare, she has pitched Jason’s case twice in rheumatology grand rounds sessions.   [6:18] During one of these sessions, Dr. Sims was advised to get the fascial biopsy that ultimately led to the diagnosis. She benefited from the intelligence and input of dozens of doctors.   [6:59] In the Fall of 2022, while hiking on vacation with his wife, Jason was extremely fatigued, and his forearms and lower legs swelled. His socks left deep impressions. It was difficult to reach his feet to put socks on. He spent a lot of time uncharacteristically resting.   [8:09] Jason’s primary care doctor ran lots of blood tests. He thought it might be a tick bite. Jason started seeing specialists, having tests and hospital visits.   [8:57] Jason worked with a rheumatologist in Wilmington, an infectious disease doctor, and a hematologist/oncologist who reached out to a Duke expert. He also saw a pulmonologist and a dermatologist. He got the referral to Dr. Sims for March of 2023.   [9:57] The first diagnosis Jason received was after his first hospital stay in January of 2023, when he had bone marrow biopsies, CT scans, ultrasound, and other tests. He was deemed to have idiopathic hypereosinophilic syndrome (IHES).   [10:30] It was only a few weeks before his local rheumatologist said his panels were back and one tipped it from an IHES diagnosis to eosinophilic granulomatosis with polyangiitis (EGPA). He joined the Vasculitis Foundation and researched EGPA.   [11:03] Dr. Sims told Jason that EGPA was a working diagnosis but he didn’t check all the boxes. There was the underlying thought that maybe it was something else. He had a second flare when he came off of prednisone in June of 2023.   [11:48] Dr. Sims scheduled Jason for a muscle biopsy while he was off steroids. That’s how he got the diagnosis of eosinophilic fasciitis (EF). Jason says the disorder is hard for him to pronounce and he can barely spell the words.   [12:52] Jason’s wife Michelle encouraged Jason to track his symptoms and medications and keep track of data. Going from specialist to specialist, the first thing he did was give the history.   [13:31] Jason found it helpful to create a spreadsheet of data with blood test results, meds, how he was feeling each day, his weight, and even notes about when he had difficulty putting his socks on. Jason is an advocate of owning your continuity of care as you see different doctors.   [14:42] Jason says the doctors at Duke talk very well between themselves.   [14:49] Jason likes to look back at that spreadsheet and see how far he’s come, looking at the dosage he was on during and after flares and the dosage he’s on now, or zero, on some of the medications. That’s a little bit of a victory.   [15:16] Holly works at a private hospital without Epic or CareEverywhere so she gives physical notes to her patients to give to their doctors. She comments that a great PCP, like the one Jason had, can make all the difference in the world.   [16:18] Jason’s PCP, Dr. Cosgrove, referred Jason to Duke for a second opinion. That was where he met Dr. Sims. He’s glad to have both Dr. Sims and his PCP accessible.   [17:35] Jason says the number of questions you have with this type of thing is immense. When you look up EF, you find very little and the literature isn’t easily digestible by patients. Being able to reach out to your doctors for a quick question is super helpful. [17:56] Jason has been able to do telehealth follow-ups and not always have to travel or take off work, which has been extremely helpful. He has been at Duke a good handful of times for various things but remote follow-ups are helpful.   [18:52] Dr. Sims says people just don’t know about EF as it is an ultra-rare diagnosis. Even physicians don’t understand what causes it. It’s lumped in with all other eosinophilic conditions but these disorders don’t all present the same way.   [19:19] EoE doesn’t look like EF, even though they’re both driven by the same immune cells. Dr. Sims says the first need is educating providers and patients on what the diagnosis is; awareness in general when a patient is having this swelling of extremities.   [19:44] Dr. Sims says at his baseline, Jason is very active with multi-mile hikes. When Dr. Sims met him, he was off from the baseline of what he was able to do. Being aware of your baseline and changes from that is very informative for doctors.   [20:07] Dr. Sims talks about the patient being a liaison between multiple specialists. Bringing data to your subspecialist always helps facilitate care and come up with a bigger picture of what’s happening.   [20:23] Jason first went to Dr. Sims with the diagnosis of EGPA. She said, let’s treat the EGPA and see what happens but they kept an open mind. With ultra-rare diseases, sometimes it’s difficult for patients not to have a label for their condition.   [20:45] Dr. Sims explains to her patients that sometimes we live in the discomfort of not having a label. She keeps an open mind and doesn’t limit herself to just one diagnosis. She seeks feedback from providers who have seen this before and know what works.   [21:07] Just as Jason described, you will go through multiple diagnoses. Is this cancer? Is it a parasitic infection? Where did you travel? You will see many subspecialists. It’s extremely anxiety-provoking.   [21:31] When Dr. Sims did her grand rounds, she gave a third of the presentation, and the other two thirds were presented by an infectious disease doctor and a hematologist. In these cases, you need more than one subspecialist to complete the workup.   [22:10] Dr. Sims says there are a lot of misconceptions that the patient will get the diagnosis right away and the right therapy and get better. There are multiple therapies, not just medications. There are lifestyle and work modifications; it’s a gradual process.   [22:22] One of Dr. Sims’s goals for Jason and Michelle is to get back to doing the things that they enjoy, tennis and hiking. That’s a measurement of the quality of life that a patient has.   [22:34] Talking to your doctors about how you’re feeling and how you’re functioning is huge. It may be that this is your new normal, but it may also be that we can make adjustments to maximize your quality of life.   [23:00] There are misconceptions about the journey of diagnosis and treatment. Have a close relationship with your subspecialist. PCPs have a high bur

    44 min
  8. 22/11/2024

    The Evolution of Eosinophilic Gastrointestinal Disorders, with Dr. Dan Atkins

    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Dr. Dan Atkins about Children’s Hospital Colorado’s multidisciplinary treatment program for eosinophilic gastrointestinal disorders (EGIDs).   In this episode, Ryan and Holly interview their friend, Dr. Dan Atkins. Ryan was a long-time patient of Dr. Atkins and Holly worked as a feeding specialist with Dr. Atkins at Children’s Hospital Colorado. Together, Dr. Atkins and Dr. Glen Furuta developed the Gastrointestinal Eosinophilic Disease Program at Children’s Hospital Colorado as a multidisciplinary treatment center for pediatric patients impacted by eosinophilic gastrointestinal diseases. They discuss how treatments and medicines have developed over the years. The clinic started with local patients but now also receives referrals from around the United States. Listen in for tips on identifying EGIDs and using multidisciplinary treatment. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own.   Key Takeaways: [:50] Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, GSK, Sanofi, and Regeneron, and co-host, Holly Knotowicz.   [1:19] Holly introduces today’s topic, the evolution of eosinophilic gastrointestinal disorders, and the guest, Dr. Dan Atkins, a pediatric allergist at Children’s Hospital Colorado.   [1:32] With more than 40 years of experience as an allergist, Dr. Atkins has seen the evolution of eosinophilic disease patient care first-hand and helped establish the Gastrointestinal Eosinophilic Disease Program at Children’s Hospital Colorado.   [1:46] The Gastrointestinal Eosinophilic Disease Program is a multi-disciplinary program designed for the optimal evaluation and treatment of children with eosinophilic gastrointestinal disorders.   [2:10] Dr. Atkins thanks Holly, Ryan, and APFED for programs like this podcast to help educate the population of patients with eosinophilic gastrointestinal diseases.   [2:39] Dr. Atkins chose a pediatric residency. The last rotation was with an incredible allergist, Dr. Lenny Hoffman, in Houston. Dr. Atkins loved seeing patients with asthma, eczema, allergic rhinitis, food allergies, and anaphylaxis.   [2:59] The thing Dr. Atkins liked about it was he could take kids who had potentially life-threatening conditions, work with them, and stabilize things, and they did really well. He could see a change in their quality of life. That got him started.   [3:22] Dr. Atkins did an allergy and immunology fellowship in Buffalo, New York with Dr. Elliott Ellis and Dr. Elliott Middleton who had just written the Allergy: Principles and Practice text. They were incredible, brilliant mentors and wonderful people.   [3:55] Dr. Atkins went to the National Institutes of Health to do basic science research after learning of a double-blind, placebo-controlled food challenge by Dr. Allan Bock and Dr. May in Denver.   [4:27] Dr. Atkins did a clinical project on food allergy with Dr. Dean Metcalf, which was one of the first double-blind, placebo-controlled food challenges in adults. They published two papers on it.   [4:47] Then Dr. Atkins went to work on the faculty of National Jewish Health. He was there for 25 years.   [5:04] Dr. Atkins was invited to join the Children’s Hospital of Colorado because they wanted to start an allergy program there.   [5:21] Dr. Atkins got interested in eosinophilic gastrointestinal diseases in 2006 after he saw a patient who had had difficulty eating, eosinophils in his esophagus, and food allergies. In another state, a doctor had put him on an elimination diet and he got better.   [5:42] The patient moved to Denver. Dr. Atkins saw him and found the case to be interesting. He looked in the literature and found an article on eosinophilic esophagitis by Dr. Alex Straumann.   [5:53] A gastroenterologist, Dr. Glen Furuta, came to Children’s Hospital, looking to work with an allergist. Dr. Atkins met with him and they hit it off. They saw the need for a multidisciplinary program to take care of these patients.   [6:31] Dr. Atkins has always been interested in diseases that led to eosinophilia. Most of them were allergic diseases. Eosinophilic esophagitis and other eosinophilic gastrointestinal diseases came along with much more of a focus on eosinophils in the gut.   [6:45] The first case of eosinophilic esophagitis that Dr. Atkins treated was a patient in 2006. He believes he probably missed earlier cases just by not asking the right question, which is, “Does your child eat slower than everybody else?”   [7:18] Once Dr. Atkins started asking patients that question, it stunned him to find out how many patients said that was part of the issue. He followed up with testing and, sure enough, they had eosinophilic esophagitis.   [7:45] Dr. Atkins says that, in general, eosinophils are present in allergic conditions. If you look at “allergic snot,” and stain it up, it’s full of eosinophils. If you have eosinophilic esophagitis and allergic rhinitis, if you swallow snot, it will impact your EoE.   [8:40] Dr. Atkins tends to be more aggressive with using a topical nasal steroid spray with patients who have allergic rhinitis because that decreases the eosinophils in the nose.   [8:50] Dr. Atkins says since eosinophils are on their way to areas that are involved in allergic inflammation, that’s how Dr. Atkins got interested in eosinophils. It played out with the multidisciplinary group and eosinophilic esophagitis.    [9:07] Ryan went to see Drs. Atkins and Furuta when he was eight. Ryan is so thankful he was able to go to their clinic and is grateful that the doctors helped to create one of the first programs dedicated to treating EGIDs in the U.S.   [9:40] Dr. Atkins credits Dr. Furuta with the multidisciplinary program. They discussed who needed to be part of it. A gastroenterologist first but Dr. Atkins thought an allergist was also necessary. Treating other allergies helps the patient’s eosinophilic condition.   [10:51] They decided they needed excellent nurses who loved working with kids. A lot of the kids had trouble eating, so the group needed feeding therapists and dieticians because these kids have a limited diet. They also needed a pathologist to read the slides.   [12:59] Because this is a burdensome disease, they needed psychologists for the child and the family. Learning coping mechanisms is a big part of the experience.   [14:20] As the program progressed, they saw they needed an endocrinologist to look at the children who weren’t growing as expected. In clinic, they needed a child health person who could play games with the kids and keep them engaged during the long visits.   [14:44] That was how the program evolved. They had an idea but they had to show people it would be an active clinic that would grow and they had enough patients to warrant the program. It happened quickly.   [14:54] The program is fortunate to have a wonderful group of people who get along well and check their egos at the door. There are lots of conversations. Everybody’s willing to listen and put their heads together. They compare notes and histories.   [15:46] Holly had been working as a feeding specialist at the hospital. Someone was on leave so Holly was put into the clinic. She had never heard of EoE; she didn’t know she had it! Her first meeting was a roomful of professionals comparing notes on patients.   [16:31] Holly was in disbelief that these medical professionals met together for an hour weekly to discuss their patients with each other. Later, Holly followed a patient with Dr. Atkins, then Dr. Furuta, then a dietician, and then a nurse. [17:01] As she followed the patient, Holly listened and recognized the symptoms. She thought that she might have EoE! She introduced herself to Dr. Atkins and asked for a referral for a diagnosis. She was diagnosed that year with EoE.   [17:25] Holly sees many unique things about the program. She was impressed that they had the foresight to include a feeding specialist, not a common specialty at the time. Holly also thinks it’s neat that the clinic sees patients from all over the country. [18:01] Dr. Atkins says the availability of care is improving across the country. When the program began, people had not heard of eosinophilic esophagitis, not even the local pediatricians. Allergists were just becoming aware of it. They had to be educated.   [18:29] There were people in other communities who didn’t have access to multidisciplinary care. Over time the word has spread. Pediatricians are referring patients to the clinic for diagnosis. Care availability has improved.   [18:55] Not every patient needs a multidisciplinary program. If you have mild to moderate eosinophilic esophagitis and you’re responding to a current therapy, are doing well, and are communicating well with your provider, that’s great!   [19:10] If you need a second opinion or if you have a complicated case, there are some benefits to multidisciplinary care.   [19:33] The providers at the clinic listen to the children as well as to the parents. When a food is removed, a dietician can suggest an alternative the child might like.   [20:07] The clinic wanted to treat local patients but go beyond that, as well. They learn

    49 min

About

Eosinophils are a type of white blood cell that play a role in immune responses and help fight off infections. When these cells build up and cause inflammation in the digestive system, tissues, organs, and/or bloodstream, without a known cause, it may be the result of an eosinophil-associated disease. Join the American Partnership for Eosinophilic Disorders (APFED) for a series of conversations with researchers, clinicians, patients, and other community members as we discuss practical strategies for disease management and treatments, research, and other topics of interest.

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