A 38-year-old man from Mumbai presents to the emergency department with acute onset severe pain in the right groin for 4 hours. On examination, there is a firm, tender, irreducible swelling in the right groin above the medial aspect of the inguinal ligament. The skin over the swelling is erythematous. The patient is febrile (38.5°C) and reports nausea. What is the most appropriate immediate next step in management?

Explanation

## Clinical Diagnosis: Incarcerated/Strangulated Inguinal Hernia **Key Point:** This patient has **strangulated inguinal hernia** — a surgical emergency. ### Red Flags Present | Feature | Significance | |---------|-------------| | **Acute onset severe pain** | Indicates ischemia of hernia contents | | **Irreducible swelling** | Trapped bowel loops cannot be reduced manually | | **Erythema over swelling** | Sign of inflammation/ischemia of overlying skin | | **Fever (38.5°C)** | Suggests tissue necrosis and peritoneal contamination | | **Nausea** | Indicates bowel obstruction/ischemia | | **Firm, tender mass** | Edematous, ischemic bowel | ## Pathophysiology of Strangulation 1. **Incarceration** → hernia contents trapped, cannot reduce 2. **Vascular compromise** → venous obstruction → arterial insufficiency 3. **Bowel ischemia** → mucosal necrosis within 6–12 hours 4. **Perforation and peritonitis** → systemic toxicity, sepsis **High-Yield:** **Time is tissue.** Strangulated hernia is a **surgical emergency**; delay beyond 6–12 hours increases risk of bowel perforation, sepsis, and death. ## Why Urgent Surgery Is Correct 1. **Irreducibility + pain + fever + nausea** = strangulation until proven otherwise. 2. **No imaging can reliably predict viability** of bowel; only intraoperative inspection determines if bowel is salvageable. 3. **Antibiotics alone will not prevent perforation** of ischemic bowel. 4. **Manual reduction is contraindicated** — risk of reducing gangrenous bowel into peritoneal cavity, causing peritonitis and sepsis. **Clinical Pearl:** The classic teaching is: **"Do not reduce a strangulated hernia."** Reduction of dead bowel spreads contamination into the abdomen. ### Operative Steps 1. Resuscitation (IV fluids, broad-spectrum antibiotics, NG tube for bowel decompression) 2. Urgent surgical exploration 3. Assessment of bowel viability (color, peristalsis, bleeding from mesentery) 4. Resection of non-viable bowel if needed 5. Hernia repair (primary or mesh, depending on contamination)