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Difficulty: MediumSurgical and Procedural Interventions

During morning rounds on the surgical ward, the team is urgently called to evaluate a patient recovering from a sigmoid colectomy performed four days prior. The patient, a 64-year-old retired teacher, reports an abrupt onset of excruciating, diffuse abdominal pain that started two hours ago. His vital signs show a temperature of 39.1°C (102.4°F), blood pressure of 82/48 mm Hg, and a heart rate of 132/min. On physical examination, the patient lies completely still in bed. Palpation of the abdomen reveals board-like rigidity, diffuse guarding, and pronounced rebound tenderness in all quadrants. Bowel sounds are absent. Following the placement of two large-bore intravenous lines, aggressive crystalloid resuscitation and broad-spectrum antibiotics are initiated. What is the most appropriate next step in the procedural management of this patient?

  1. Immediate exploratory laparotomyAnswer
  2. B
    Computed tomography of the abdomen and pelvis with intravenous contrast
  3. C
    Lower gastrointestinal endoscopy
  4. D
    Image-guided percutaneous drain placement
  5. E
    Diagnostic laparoscopy

Answer

Immediate exploratory laparotomy
The correct answer is immediate exploratory laparotomy. This patient is presenting with classic signs of generalized peritonitis (board-like rigidity, diffuse guarding, and rebound tenderness) and septic shock (fever, hypotension, tachycardia) four days after a sigmoid colectomy. This clinical picture is highly indicative of an uncontained, free anastomotic leak. In any hemodynamically unstable patient who has a clinically unequivocal acute surgical abdomen, the standard of care is immediate fluid resuscitation, broad-spectrum antibiotics, and emergent exploratory laparotomy to achieve source control. Delaying surgery for diagnostic confirmation is inappropriate and increases mortality.

Step-by-Step Solution

1
Identify the clinical syndrome
The patient exhibits generalized peritonitis (board-like rigidity, rebound tenderness) and septic shock (hypotension, tachycardia, fever) on postoperative day 4.
Recognizing the severe systemic inflammatory response and peritonitis establishes the critical nature of the emergency.
2
Determine the likely etiology
The clinical picture strongly suggests an uncontained anastomotic leak.
Anastomotic leaks most commonly present between postoperative days 3 and 7, often resulting in free intraperitoneal contamination.
3
Select the appropriate procedural intervention
Immediate exploratory laparotomy is chosen as the definitive procedural management.
Hemodynamic instability combined with a clinically obvious acute surgical abdomen constitutes an absolute indication for immediate open surgical exploration.

Key Concept

Hemodynamically unstable patients presenting with signs of generalized peritonitis following bowel surgery require immediate exploratory laparotomy for definitive source control; obtaining advanced imaging in this scenario dangerously delays life-saving surgery.
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Topics

Surgical and Procedural Interventions

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