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Difficulty: Very hardPreoperative and Postoperative Care

Nursing staff requests an urgent assessment of a 62-year-old male on his sixth day of recovery following an open total gastrectomy and Roux-en-Y esophagojejunostomy for gastric adenocarcinoma. Over the preceding twelve hours, he has developed worsening shortness of breath accompanied by new-onset pain radiating to his left shoulder. His past medical history is notable for severe chronic obstructive pulmonary disease and diet-controlled type 2 diabetes mellitus.

Current vital signs demonstrate a temperature of 38.8°C (101.8°F), a heart rate of 124 beats per minute, a respiratory rate of 28 breaths per minute, and a blood pressure of 84/52 mmHg. Pulse oximetry shows an oxygen saturation of 88% on room air.

Physical examination reveals a diaphoretic and distressed patient. Pulmonary auscultation demonstrates absent breath sounds and dullness to percussion over the lower third of the left posterior hemithorax. The abdomen is tensely distended with severe diffuse tenderness, board-like rigidity, and rebound tenderness most pronounced in the left upper quadrant. Bowel sounds are absent. A bedside electrocardiogram reveals sinus tachycardia without ischemic changes.

Which of the following is the most appropriate next step in the management of this patient?

  1. Emergent exploratory laparotomyAnswer
  2. B
    Computed tomography of the abdomen and pelvis with water-soluble contrast
  3. C
    Computed tomography pulmonary angiography
  4. D
    Administration of intravenous furosemide and continuous positive airway pressure
  5. E
    Diagnostic and therapeutic thoracentesis

Answer

Emergent exploratory laparotomy
The correct answer is emergent exploratory laparotomy. This patient is presenting with classic signs of an anastomotic leak, a feared complication that typically occurs between postoperative days 5 and 7 following gastric or bowel resections. The leakage of enteric contents has led to generalized peritonitis (indicated by the board-like rigid abdomen and rebound tenderness) and septic shock (indicated by hypotension, tachycardia, and fever). The left shoulder pain is known as Kehr sign, which represents referred pain from diaphragmatic irritation caused by a left subphrenic collection of fluid or purulence. This diaphragmatic inflammation also leads to a reactive, sympathetic left pleural effusion, causing the patient's dyspnea, absent breath sounds, and dullness to percussion. While computed tomography with oral contrast is the diagnostic test of choice for a suspected anastomotic leak in a hemodynamically stable patient, this patient is in hypotensive shock with an overt acute surgical abdomen. In such cases, emergent exploratory laparotomy for abdominal washout, drainage, and source control is mandatory. Attempting to obtain imaging in this scenario dangerously delays life-saving intervention and risks cardiopulmonary arrest in the radiology suite.

Step-by-Step Solution

1
Analyze the temporal presentation and vital signs.
The patient is on postoperative day 6 with new-onset fever, profound hypotension (84/52 mmHg), and marked tachycardia, indicating septic shock.
Establishing the postoperative day and hemodynamic status is critical for narrowing the differential diagnosis of postoperative complications.
2
Evaluate the physical examination findings.
The patient exhibits a tensely distended abdomen with board-like rigidity and rebound tenderness, alongside left shoulder pain (Kehr sign) and a left-sided pleural effusion.
These findings point to an acute surgical abdomen with subphrenic irritation. In the context of a recent Roux-en-Y anastomosis, an anastomotic leak with free intra-abdominal spillage is the most likely underlying cause.
3
Determine the next best step in management.
Immediate surgical intervention is selected over diagnostic imaging.
Any patient presenting with frank peritonitis and hemodynamic instability mandates emergent laparotomy for definitive source control; imaging is contraindicated as it delays life-saving surgery.

Key Concept

Hemodynamically unstable patients with clinical evidence of generalized peritonitis following abdominal surgery require immediate exploratory laparotomy, overriding the need for diagnostic imaging.
Estimated Time:2m 0s
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Topics

Preoperative and Postoperative Care

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