A 35-year-old diabetic male develops sudden severe left lower leg pain, erythema, and marked crepitus within 18 hours of a contaminated puncture wound. Radiographs show soft tissue gas tracking along fascial planes. What is the essential immediate therapeutic management?

Answer and explanation

Correct answer: A. Immediate surgical fascial debridement and dual antibiotics

  1. Step 1: Rapidly spreading soft-tissue infection with severe pain out of proportion to exam and subcutaneous gas represents necrotizing fasciitis (gas gangrene).
  2. Step 2: Necrotizing soft-tissue infection is a surgical emergency with high mortality if intervention is delayed.
  3. Step 3: The cornerstone of treatment is immediate, aggressive surgical debridement of all necrotic fascia coupled with broad-spectrum parenteral antibiotics (e.g., piperacillin-tazobactam plus clindamycin or vancomycin).
Answer
Immediate surgical fascial debridement and dual antibiotics.
Why not the others: Hyperbaric oxygen is only an adjunct after debridement; oral antibiotics and local aspiration fail to arrest tissue liquefaction.

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