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Difficulty: MediumGastrointestinal and Abdominal Surgery

A 38-year-old man arrives at the emergency department accompanied by his spouse, reporting excruciating abdominal pain that began 6 hours ago. He states that he has had a painless "bulge" in his right groin for two years, which typically disappears when he lies down. Earlier today, the bulge became noticeably larger, highly painful, and could no longer be pushed back in. Over the past 3 hours, the pain has generalized across his entire abdomen, and he has vomited dark, bilious fluid three times. He has not passed flatus since yesterday. His temperature is 38.6°C (101.5°F), blood pressure is 98/60 mm Hg, pulse is 118/min, and respirations are 22/min. On physical examination, the patient is diaphoretic and lying completely still. Abdominal examination reveals board-like rigidity, diffuse involuntary guarding, and severe rebound tenderness in all quadrants. Examination of the right groin demonstrates a 6-cm, tense, erythematous mass protruding into the scrotum that is exquisitely tender to palpation. Laboratory results show a leukocyte count of 17,500/mm³ and a serum lactate of 4.1 mmol/L. Which of the following is the most appropriate next step in management?

  1. Urgent surgical explorationAnswer
  2. B
    Nasogastric tube decompression and serial abdominal examinations
  3. C
    Computed tomography scan of the abdomen and pelvis with intravenous contrast
  4. D
    Attempted manual reduction of the mass under conscious sedation
  5. E
    Administration of broad-spectrum antibiotics and close observation

Answer

Urgent surgical exploration
The correct answer is immediate operative intervention. This patient presents with a strangulated inguinal hernia causing a mechanical small bowel obstruction, complicated by bowel ischemia or frank perforation. The diagnosis is strongly supported by the progression of pain to involve the entire abdomen, hemodynamic instability (tachycardia, hypotension), fever, elevated serum lactate, overlying erythema at the hernia site, and diffuse peritonitis (board-like rigidity and rebound tenderness). In any patient presenting with an acute surgical abdomen with clear signs of peritonitis or bowel ischemia, the most appropriate next step is urgent surgical exploration. The surgical team must resect any necrotic bowel, wash out the peritoneal cavity, and repair the hernia defect.

Step-by-Step Solution

1
Identify the underlying clinical syndrome based on the patient's history and physical examination.
The patient has a known right inguinal hernia that has become irreducible (incarcerated) and is now causing mechanical small bowel obstruction (bilious vomiting, obstipation).
Understanding the primary etiology is necessary to guide subsequent workup and intervention.
2
Assess for complications that indicate a shift from stable to life-threatening pathology.
The presence of fever, tachycardia, hypotension, elevated lactate, overlying erythema, and diffuse peritonitis (rigid abdomen, rebound tenderness) indicates that the hernia is strangulated, leading to bowel ischemia or perforation.
Strangulation and peritonitis represent surgical emergencies that require a change in standard diagnostic algorithms.
3
Determine the definitive management pathway for the identified complication.
Immediate surgical intervention is chosen over conservative measures or further diagnostic imaging.
In the setting of an acute surgical abdomen with clear signs of ischemia and peritonitis, any delay for imaging or conservative management increases morbidity and mortality.

Key Concept

Management of strangulated hernias and complicated small bowel obstruction
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Topics

Gastrointestinal and Abdominal Surgery

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