A 48-year-old man from Mumbai presents to the emergency department with acute onset severe pain and tenderness in the right groin. On examination, a firm, tender, irreducible swelling is palpable in the right inguinal region. The overlying skin appears erythematous. He has nausea and mild abdominal distension. What is the most appropriate immediate next step in management?

Explanation

## Strangulated Inguinal Hernia: Surgical Emergency ### Key Point: **Strangulated hernia is a surgical emergency requiring immediate operative intervention to prevent bowel necrosis, perforation, and death. Manual reduction is contraindicated.** ### Clinical Diagnosis of Strangulation | Feature | Incarcerated Hernia | Strangulated Hernia | |---------|-------------------|--------------------| | **Reducibility** | Irreducible | Irreducible | | **Pain** | Mild to moderate | Severe, constant | | **Skin** | Normal or slightly erythematous | Erythematous, may be dusky | | **Systemic signs** | Absent | Present (fever, tachycardia, nausea) | | **Bowel sounds** | Normal or decreased | Absent or high-pitched | | **Risk of necrosis** | Low | **HIGH — tissue ischemia ongoing** | | **Management** | Urgent repair (within 6–12 hrs) | **EMERGENCY repair (within 1–2 hrs)** | ### Pathophysiology of Strangulation ```mermaid flowchart TD A[Hernia incarcerated]:::outcome --> B[Venous compression first]:::action B --> C[Edema and congestion]:::action C --> D[Arterial compression develops]:::action D --> E[Ischemia of trapped viscus]:::action E --> F[Mucosal ulceration]:::action F --> G[Perforation and peritonitis]:::urgent G --> H[Sepsis and death]:::urgent ``` ### Clinical Features in This Case Indicating Strangulation - **Irreducible swelling** — tissue trapped - **Severe pain** — ischemic viscus - **Erythematous skin** — inflammation and congestion - **Nausea and abdominal distension** — bowel obstruction and ischemia - **Firm, tender mass** — edematous, congested tissue ### High-Yield Management Algorithm ```mermaid flowchart TD A[Acute groin swelling + pain]:::outcome --> B{Reducible?}:::decision B -->|Yes| C[Incarcerated hernia]:::outcome C --> D[Urgent repair within 6-12 hrs]:::action B -->|No| E{Signs of strangulation?}:::decision E -->|Yes: severe pain, erythema, systemic signs| F[STRANGULATED HERNIA]:::urgent F --> G[Emergency surgery within 1-2 hrs]:::urgent E -->|No| H[Incarcerated hernia]:::outcome H --> D ``` ### Management of Strangulated Hernia **Immediate Actions:** 1. **Nil per os (NPO)** — prepare for surgery 2. **IV access and fluids** — resuscitate 3. **NG tube** — decompress stomach if distended 4. **Broad-spectrum antibiotics** — cover gram-positive, gram-negative, and anaerobes (e.g., ceftriaxone + metronidazole) 5. **Analgesia** — do NOT withhold pain relief 6. **NO manual reduction** — risk of pushing necrotic bowel into peritoneal cavity **Definitive Treatment:** - **Emergency surgical exploration** under general anesthesia - Assess viability of hernia contents (bowel color, bleeding, peristalsis) - Resect if non-viable; repair hernia with mesh (tension-free) - Manage peritonitis if perforation has occurred **Warning:** Attempting manual reduction in a strangulated hernia can push ischemic, perforated bowel into the abdomen, converting a local problem into diffuse peritonitis and sepsis. **Clinical Pearl:** The **golden period** for strangulated hernia repair is within 6 hours of onset; after 12 hours, bowel necrosis is likely. Mortality increases significantly if perforation occurs. [cite:Sabiston Textbook of Surgery 21e Ch 43; Bailey & Love's Short Practice of Surgery 28e Ch 71]