A 62-year-old man with a history of three prior abdominal surgeries presents with acute small bowel obstruction. Regarding adhesive small bowel obstruction, all of the following are true EXCEPT:

Explanation

## Adhesive Small Bowel Obstruction: Key Facts ### Epidemiology and Pathophysiology **Key Point:** Adhesions are the leading cause of small bowel obstruction in the developed world, accounting for 60–75% of cases in patients without prior malignancy or inflammatory bowel disease. **High-Yield:** Most adhesions form within the first 4 weeks post-operatively, though they can develop years later. The risk of adhesion formation increases with the extent of peritoneal trauma and the number of prior surgeries. ### Strangulation Risk Timeline **Clinical Pearl:** Strangulation risk is highest in the first 48 hours of symptom onset. After 5 days, the risk of strangulation decreases significantly because: - Bowel becomes more edematous and less likely to twist further - Collateral circulation develops - Partial resolution of obstruction may occur This is why early intervention (within 48 hours) is critical when strangulation is suspected. ### Surgical Management and Recurrence **Warning:** The statement that "laparoscopic adhesiolysis has a lower recurrence rate" is INCORRECT and is the answer. In fact: - **Laparoscopic adhesiolysis has a HIGHER recurrence rate** of obstruction (up to 20–30%) compared to open adhesiolysis (10–15%) - Laparoscopy carries higher risk of bowel perforation during adhesiolysis - Open adhesiolysis allows better visualization and complete lysis of all adhesions - Laparoscopy may be useful for diagnosis but is not preferred for definitive treatment in most cases **Mnemonic:** **LARS** — Laparoscopic Adhesiolysis Recurrence is Substantial (compared to open approach) ### Management Algorithm ```mermaid flowchart TD A[Adhesive SBO diagnosed]:::outcome --> B{Signs of strangulation?}:::decision B -->|Yes: fever, peritonitis, lactate| C[Urgent open adhesiolysis]:::action B -->|No: stable, < 48 hrs| D[Trial of conservative management]:::action D --> E{Resolution in 48-72 hrs?}:::decision E -->|Yes| F[Discharge, counsel on recurrence]:::outcome E -->|No| G[Open adhesiolysis]:::action G --> H[Complete lysis, inspect bowel]:::action H --> I[Avoid laparoscopy for definitive treatment]:::urgent ```