A 68-year-old man with hypertension presents to the emergency department with sudden-onset severe back pain radiating to the left flank and hypotension (BP 92/58 mmHg). CT angiography confirms a ruptured abdominal aortic aneurysm (AAA) with active extravasation. Regarding the acute management of ruptured AAA, all of the following are true EXCEPT:

Explanation

## Acute Management of Ruptured AAA: Key Principles **Key Point:** The management of ruptured AAA fundamentally differs from other shock states. Aggressive fluid resuscitation BEFORE aortic control is contraindicated and worsens outcomes. ### Why Aggressive Resuscitation Is Wrong In ruptured AAA, early aggressive crystalloid infusion: - Increases intra-abdominal pressure and worsens bleeding - Dilutes clotting factors and promotes coagulopathy - Elevates blood pressure, which dislodges clots and increases hemorrhage - Delays definitive surgical control This is the **single most important deviation** from standard shock management and is heavily tested in NEET PG. ### Correct Management Principles | Principle | Rationale | |-----------|----------| | **Permissive hypotension** (SBP 60–70 mmHg) | Maintains cerebral and coronary perfusion while minimizing bleeding; continued until aortic cross-clamp applied | | **Minimal fluid resuscitation** | Only enough to maintain mentation; avoid "normal" BP targets | | **Immediate OR transfer** | Do not delay for CT if clinical diagnosis is clear; imaging may be done if patient is stable | | **Proximal aortic control** | Cross-clamp above renal arteries if infra-renal control cannot be rapidly achieved; accept temporary renal ischemia | | **Damage control approach** | Resuscitation, correction of coagulopathy, and definitive repair staged after initial hemorrhage control | **High-Yield:** The phrase "damage control" and "permissive hypotension" are the hallmarks of ruptured AAA management and distinguish it from all other acute surgical emergencies. **Clinical Pearl:** A patient with ruptured AAA who becomes "too stable" after aggressive fluids has likely tamponaded into the retroperitoneum — decompression in the OR may cause sudden massive hemorrhage and death. **Warning:** Do NOT apply standard ATLS resuscitation (target MAP >65 mmHg, aggressive crystalloid) to ruptured AAA — this is a common exam trap and a fatal clinical error. ### Why the Other Options Are Correct - **Permissive hypotension (Option 0):** Standard of care; reduces ongoing hemorrhage. - **Immediate OR (Option 2):** Ruptured AAA is a surgical emergency; imaging delays are dangerous. - **Avoid supra-renal clamp if possible (Option 3):** Renal ischemia from supra-renal clamping causes acute tubular necrosis; infra-renal control is preferred when feasible.