Simini Boards Cast

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  The Simini Boards-Cast is the go-to audio study tool for small animal surgery residents prepping for board exams.  Each episode simplifies high-yield surgical content from trusted sources  — built to help you pass faster and with less stress.  🎧 Audio-based learning for passive study ✂️ Practical relevance for surgical application 🧠 Flashcard-style recaps + board-style questions 📈 Designed with resident + program director input  Whether you're commuting, walking the dog, or post-op, turn that time into surgical mastery.  Subscribe now and get board-ready — fast. 

  1. 3D AGO

    Chapter 106 - Part E: They Survived Surgery—Now Everything Tries to Kill Them

    In this BoardsCast episode, we finish Tobias Chapter 106 — Cardiac Surgery with the ultimate ICU nightmare: The defect is fixed. Flow is restored. The surgery worked…and then the patient starts crashing.  This episode reframes postoperative cardiac instability the way the boards want you to think: Post-op instability isn’t “bad luck.” It’s a predictable perfusion failure system. Everything collapses into three variables: Pump × Pipes × Fill. When one fails, the others follow—often simultaneously—driven by bypass physiology: biologic bleeding/hemodilution, inflammatory vasodilation + capillary leak, and myocardial stunning with electrolyte-driven arrhythmias.  You’ll learn:  The perfusion equation: pump, pipes, fill (and how every crash fits it)  Why a bounding pulse can lie (pulse pressure ≠ MAP; organs care about MAP)  How bypass breaks all three variables: bleeding + leak (fill), vasodilation (pipes), stunning/VT + electrolytes (pump) The deadly reflex: treating hypotension with crystalloids without mechanism (you can flood lungs / worsen RV failure)  The only safe approach: treat the variable, not the number🎁 Simini Bonus Claim your free sample of Simini Protect Lavage (just cover shipping): https://www.simini.com/evaluation-kit Listen On: Spotify | Apple Podcasts | Amazon Music

    21 min

  2. 3D AGO

    Chapter 106 - Part D: The Cost of Bypass: Inflammation, Lungs, and System Damage

    In this BoardsCast episode, we continue Tobias Chapter 106 — Cardiac Surgery with the most frustrating post-op scenario: The cardiac repair is flawless… and the patient still crashes. This episode rebuilds the correct mental model for post-bypass deterioration: Bypass solves circulation — but it breaks physiology. Because cardiopulmonary bypass (CPB) isn’t “support.” It’s a non-physiologic environment where blood is diluted, mechanically stressed, and exposed to artificial surfaces—triggering a system-wide inflammatory injury that shows up in the lungs first.  You’ll learn:  Why CPB triggers systemic inflammation (blood meets plastic → complement activation)  Why lungs fail first: they receive 100% of cardiac output, so they take the full hit  “Pump lung”: capillary leak → pulmonary edema → stiff lungs → hypoxemia despite a “perfect heart”  Why post-bypass bleeding is often biologic, not surgical (platelet dysfunction + consumptive coagulopathy)  Why aggressive crystalloid worsens everything (it leaks out and floods the lungs) and why blood/plasma support matters  The downstream fallout to monitor: kidneys (UOP), electrolytes (K/Ca), and arrhythmias (VT) Key takeaway: Post-bypass deterioration is a whole-body inflammatory syndrome — not “bad luck in the lungs.” 🎁 Simini Bonus Claim your free sample of Simini Protect Lavage (just cover shipping): https://www.simini.com/evaluation-kit Listen On: Spotify | Apple Podcasts | Amazon Music

    20 min

  3. 3D AGO

    Chapter 106 - Part C: Flow Is Easy, Perfusion Is Hard.

    In this BoardsCast episode, we continue Tobias Chapter 106 — Cardiac Surgery with the most terrifying bypass trap: The pump looks perfect… and the organ is still dying. Because flow is delivery, but perfusion is exchange. Only one of those keeps tissue alive.  This episode rebuilds cardiopulmonary bypass into the only board-safe framework: Bypass success is microcirculation success. Not pump numbers.  You’ll learn:  Why can pump flow look good, while tissue is starving  The three perfusion pillars: delivery, distribution, oxygen-carrying capacity Why MAP is the true driver of capillary perfusion (target 50–70 mmHg)  Why hemodilution is necessary (viscosity) — but dangerous if HCT drops 18% (target ~25–28%)  Why non-pulsatile flow can trigger vasoconstriction and maldistribution (global flow ≠ regional feeding)  The two truth-tellers: SvO₂ (goal ≥70%) and lactate (rising = cellular suffocation) Key takeaway: Stop treating the pump. Treat the tissue. 🎁 Simini Bonus Claim your free sample of Simini Protect Lavage (just cover shipping): https://www.simini.com/evaluation-kit Listen On: Spotify | Apple Podcasts | Amazon Music

    16 min

  4. 3D AGO

    Chapter 106 - Part B: Stopping the Heart Without Killing It

    In this BoardsCast episode, we continue Tobias Chapter 106 — Cardiac Surgery with the most backward-sounding truth in medicine: you stop the heart… to keep it alive. This episode rewires the mental model of “cardiac arrest” in the OR. In surgery, a stopped heart isn’t failure — it’s a controlled metabolic shutdown designed to preserve viability while giving the surgeon a still, bloodless field.  Here’s the mantra that governs everything: The heart doesn’t die when it stops.  The heart dies when it runs out of energy. You’ll learn:  Why myocardial survival is an energy equation: oxygen supply ≥ energy demand What actually kills myocardium during ischemia: ATP depletion → acidosis → pump failure → calcium overload → necrosis  Why surgeons must stop the heart: motionless + bloodless field requires an aortic cross-clamp How CPB keeps the body alive while the heart is isolated  Cardioplegia mechanics: high potassium depolarizes and locks sodium channels → protective arrest  Hypothermia as the second lever: cold slows enzymes; every ~10°C drop cuts metabolism ~in half  The 3 ways protection fails: demand too high, delivery too uneven, or ischemic time too long Key takeaway: Cardiac surgery is energy management, not “keeping the heart beating.” 🎁 Simini Bonus Claim your free sample of Simini Protect Lavage (just cover shipping): https://www.simini.com/evaluation-kit Listen On: Spotify | Apple Podcasts | Amazon Music

    20 min

  5. 3D AGO

    Chapter 106 - Part A: You Turned the Body Off: How Machines Replace Life

    In this BoardsCast episode, we begin Tobias Chapter 106 — Cardiac Surgery with the most mind-bending truth in medicine: You stop the heart. You stop the lungs. And the patient stays alive. That only makes sense if you adopt the reframe Tobias forces on you: You didn’t pause the body — you replaced it. This episode breaks down cardiopulmonary bypass (CPB) as a survival framework, not a surgical technique. Because on bypass, the machine becomes the heart (flow) and the lungs (gas exchange). The organs are offline — the functions are outsourced.  You’ll learn:  The two non-negotiables for life: circulation + oxygenation (organs are just vehicles)  The CPB loop in plain language: gravity drainage → reservoir → pump → oxygenator → arterial return How the oxygenator works: hollow fibers + diffusion + sweep gas to clear CO₂  Why they cool the patient (≈ 25–28°C) to slash metabolic demand  Why bypass is not normal physiology: non-pulsatile flow + whole-body inflammatory response from blood touching plastic  The tightrope: hemodilution prevents “sludge blood,” but hematocrit too low kills oxygen delivery (target ~25–28%; danger 18%)  The most important mantra: Flow is easy. Perfusion is hard. (SV0₂ is the report card) Key takeaway: The machine can keep you alive — but only if it delivers oxygen at the tissue level, not just “moves blood.” 🎁 Simini Bonus Claim your free sample of Simini Protect Lavage (just cover shipping): https://www.simini.com/evaluation-kit Listen On: Spotify | Apple Podcasts | Amazon Music

    23 min

  6. 6D AGO

    Chapter 105 - Part E: You Can’t Breathe in a Broken Container: Pressure, Volume, and Compliance

    In this BoardsCast episode, we finish Tobias Chapter 105 — Thoracic Cavity by explaining the most frustrating paradox in respiratory distress: The airway is open, oxygen is flowing, the lungs are intact, and the patient still can’t breathe. Because the lungs don’t run breathing.  The container does. This episode locks in the system framework the boards want you to use in every dyspneic patient: You need three things to breathe: Pressure gradientAvailable intrathoracic spaceComplianceAnd if you lose even one of them, ventilation fails — regardless of how “healthy” the lung tissue is.  You’ll learn:  The mantra: You can’t breathe in a broken container The equation: ventilation depends on pressure × volume × compliance The three ways the container breaks: Pressure failure → pneumothorax/tension pneumothorax Volume failure → pleural effusion/hemothorax/mass Compliance failure → stiff lungs/pleura or painful splinting  Why is rapid, shallow breathing a mechanical compensation for low tidal volume  The clinical shift: oxygen is “fuel,” but pressure/space/compliance is the engineKey takeaway: Stop staring at the lungs. Restore the system. 🎁 Simini Bonus Claim your free sample of Simini Protect Lavage (just cover shipping): https://www.simini.com/evaluation-kit Listen On: Spotify | Apple Podcasts | Amazon Music

    21 min

  7. 6D AGO

    Chapter 105 - Part D: Pleural Effusion: When Fluid Rewrites the Rules

    In this BoardsCast episode, we continue Tobias Chapter 105 — Thoracic Cavity with the most terrifying paradox in respiratory medicine: The airway is open, the lungs are structurally normal, oxygen is available — and the patient still can’t breathe. This episode rewires the mental model that makes pleural effusion instantly understandable: Pleural effusion is not “fluid around the lungs.” It’s space theft inside a sealed pressure system. The lung is a passive balloon. It can’t inflate itself. It only expands when the thoracic “jar” creates negative pressure, and fluid steals the room the balloon needs to expand. The result is predictable: tidal volume collapses, the patient switches to rapid shallow breathing, dead space dominates, and hypoxemia follows.  You’ll learn:  The correct model: thorax = rigid jar, lung = passive balloon, effusion = stolen volume  Why the pleural space is normally a potential space with only 0.1–0.3 mL/kg of fluid  How Starling forces create effusion: ↑ hydrostatic pressure, ↓ oncotic pressure, ↑ permeability, ↓ lymph drainage  Why “compression” is misleading: the lung mainly collapses from loss of coupling + lost space, not being “crushed”  Why oxygen alone fails: you can’t oxygenate alveoli that can’t expand The only true fix: thoracocentesis (restore usable expansion space)  The chronic trap: slow effusions can look “stable” until reserve is gone — then they crash with minor stress Key takeaway: Pleural effusion kills by stealing space — not by damaging lung tissue. 🎁 Simini Bonus Claim your free sample of Simini Protect Lavage (just cover shipping): https://www.simini.com/evaluation-kit Listen On: Spotify | Apple Podcasts | Amazon Music

    17 min

  8. 6D AGO

    Chapter 105 - Part C: Tension Pneumothorax: The Fastest Way to Kill a Stable Patient

    In this BoardsCast episode, we continue Tobias Chapter 105 — Thoracic Cavity by dismantling the most lethal chest misconception: Tension pneumothorax is not a breathing problem. It’s an obstructive shock state. This is the scenario: mild distress… “nothing crazy”… and then 10 minutes later the patient is hypotensive and crashing — not because the lungs failed, but because the heart just got crushed.  You’ll learn:  Why tension pneumothorax kills through pressure, not oxygen deprivation  The one-way valve mechanism: inhale pulls air into pleura, exhale traps it  The pressure cascade: pleural pressure climbs from negative → positive → mediastinal shift  The real cause of death: vena cava compression → no venous return → no preload → no cardiac output Why intubation/positive-pressure ventilation can instantly kill (it accelerates the pressure bomb)  The rule that saves lives: don’t wait for imaging — decompress immediatelyKey takeaway: If pressure is killing the patient, oxygen won’t save them. Decompression will. 🎁 Simini Bonus Claim your free sample of Simini Protect Lavage (just cover shipping): https://www.simini.com/evaluation-kit Listen On: Spotify | Apple Podcasts | Amazon Music

    19 min
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About

  The Simini Boards-Cast is the go-to audio study tool for small animal surgery residents prepping for board exams.  Each episode simplifies high-yield surgical content from trusted sources  — built to help you pass faster and with less stress.  🎧 Audio-based learning for passive study ✂️ Practical relevance for surgical application 🧠 Flashcard-style recaps + board-style questions 📈 Designed with resident + program director input  Whether you're commuting, walking the dog, or post-op, turn that time into surgical mastery.  Subscribe now and get board-ready — fast. 

Information

  • Creator
    Simini Podcasts
  • Years Active
    2025 - 2026
  • Episodes
    168
  • Rating
    Clean
  • Copyright
    © 2026 Simini Boards Cast
  • Show Website
    Simini Boards Cast