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Difficulty: HardPreoperative and Postoperative Care

A 62-year-old man is evaluated on postoperative day 6 following an elective laparoscopic sigmoid colectomy with primary anastomosis for recurrent diverticulitis. He had been recovering well, tolerating a soft diet, and passing flatus. Over the past 12 hours, he has developed severe, diffuse abdominal pain, nausea, and confusion. Vital signs show a temperature of 39.2°C (102.6°F), heart rate of 128/min, blood pressure of 82/50 mmHg, and respiratory rate of 26/min. Pulse oximetry is 94% on room air. Physical examination reveals a distended, rigidly tense abdomen with diffuse guarding and rebound tenderness. Bowel sounds are absent. A surgical drain left in the pelvis during the initial procedure now shows 100 mL of new purulent, feculent output. Two large-bore peripheral intravenous lines are established, and isotonic fluid resuscitation is initiated. Which of the following are the most appropriate next steps in the management of this patient? (Select 2)

  1. Prepare the patient for an urgent exploratory laparotomyAnswer
  2. Initiate empiric broad-spectrum intravenous antibioticsAnswer
  3. C
    Transport the patient for a contrast-enhanced CT scan of the abdomen and pelvis
  4. D
    Place a nasogastric tube and observe closely for spontaneous resolution
  5. E
    Obtain a chest radiograph and send sputum samples for culture

Answer

The most appropriate next steps are to prepare the patient for an urgent exploratory laparotomy and to initiate empiric broad-spectrum intravenous antibiotics.
This patient is presenting with septic shock and generalized peritonitis on postoperative day 6, which is the classic timeframe for an anastomotic leak. The presence of new feculent output from the surgical drain confirms the diagnosis. In any hemodynamically unstable patient with a clear acute surgical abdomen, the immediate priorities are hemodynamic resuscitation, initiation of empiric broad-spectrum intravenous antibiotics to cover enteric pathogens (aerobic and anaerobic flora), and emergent exploratory laparotomy to achieve surgical source control. Delaying intervention to obtain imaging is strictly contraindicated in unstable patients.

Step-by-Step Solution

1
Evaluate the patient's hemodynamic status and physical examination findings.
The patient exhibits signs of septic shock (hypotension, tachycardia, fever, confusion) along with a rigid abdomen and new feculent drain output.
These findings confirm the presence of generalized peritonitis, highly indicative of a postoperative anastomotic leak.
2
Determine the immediate medical resuscitation requirements.
Aggressive isotonic fluid resuscitation and empiric broad-spectrum intravenous antibiotics must be initiated immediately.
Early initiation of appropriate antimicrobial therapy and fluid resuscitation significantly reduces mortality in septic shock secondary to intra-abdominal infections.
3
Establish the definitive surgical management plan.
The patient must bypass advanced imaging and proceed directly to the operating room for an urgent exploratory laparotomy.
In hemodynamically unstable patients with clear evidence of an acute surgical abdomen, delaying source control for a CT scan is contraindicated and increases mortality.

Key Concept

Hemodynamically unstable patients presenting with generalized peritonitis and septic shock due to a suspected anastomotic leak require immediate fluid resuscitation, empiric broad-spectrum antibiotics, and emergent exploratory laparotomy for source control without delaying for imaging.
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Topics

Preoperative and Postoperative Care

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