Simini Boards Cast
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Simini Boards Cast
Chapter 116 - Part B: Handle It Wrong, It Swells: The Surgical Biology of the Bladder
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In this BoardsCast episode, we continue Tobias Chapter 116 — Bladder with the most unforgiving truth about this organ:
The bladder heals fast… unless you make the tissue fail.
This episode is a biology-first surgical framework for why some bladder repairs feel “easy,” and others dehisce into uroabdomen—even when the knots look perfect.
We cover:
- Why bladder mucosa heals in ~5 days, and full-thickness strength returns in 14–21 days (fastest “major organ” healer)
- The real equation: Perfusion + apposition + low pressure = healing
- Why the dorsal/trigonal blood supply makes aggressive base dissection a setup for ischemia and leak
- Tissue handling rules that matter more than your closure pattern:
- Stay sutures > forceps (traction without crushing microvasculature)
- Wet swabs only (dry gauze = sandpaper) + suction > wiping
- Avoid diathermy when possible (thermal necrosis delays healing)
- Closure mechanics that actually hold:
- Submucosa is the strength layer—miss it and your repair is cosmetic, not functional
- Monofilament absorbable preferred; non-absorbables/staples exposed to lumen can seed cystoliths
- Why distension is the silent killer: pressure on a fresh line can tear biology apart—decompression matters
- When to use omentum: omentalization as a biologic patch for questionable tissue/closure lines
Key takeaway: The knot doesn’t heal the bladder. Biology heals the bladder.
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