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Difficulty: MediumGynecologic Procedures and Complications

A 62-year-old woman is brought to the emergency department by her daughter due to severe, generalized abdominal pain and recurrent vomiting for the past 6 hours. She reports an inability to pass flatus since yesterday. Two days ago, the patient underwent a hysteroscopy and fractionated dilation and curettage for the evaluation of postmenopausal bleeding. The operative report notes that during the procedure, a uterine sound passed deeper than the expected uterine depth, raising suspicion for a uterine perforation. The procedure was aborted, and the patient was observed for 4 hours; she remained hemodynamically stable and was discharged home. Today, her temperature is 39.2°C (102.6°F), blood pressure is 86/52 mm Hg, pulse is 122/min, and respirations are 24/min. Physical examination reveals a rigid, distended abdomen with diffuse rebound tenderness and involuntary guarding. Bowel sounds are absent. Intravenous fluid resuscitation and broad-spectrum antibiotics are initiated. Which of the following is the most appropriate next step in management?

  1. Exploratory laparotomyAnswer
  2. B
    Computed tomography of the abdomen and pelvis
  3. C
    Placement of a nasogastric tube and clinical observation
  4. D
    Transvaginal ultrasonography
  5. E
    Endometrial biopsy

Answer

Exploratory laparotomy
Exploratory laparotomy is the most appropriate next step in management. This patient presents with classic signs of acute generalized peritonitis (rigid, distended abdomen with diffuse rebound tenderness) and septic shock (hypotension, tachycardia, fever) 48 hours after a suspected uterine perforation. During gynecologic procedures such as dilation and curettage, particularly in postmenopausal women with atrophic, thinned uterine walls, passing an instrument through the uterus can easily cause mechanical or thermal injury to adjacent structures like the bowel. If the bowel is perforated, spillage of enteric contents into the peritoneal cavity causes rapidly progressive peritonitis and sepsis. In any hemodynamically unstable patient presenting with an acute surgical abdomen, immediate operative intervention (exploratory laparotomy) is mandated to achieve source control, washout the abdomen, and repair the damaged viscus.

Step-by-Step Solution

1
Identify the procedural complication based on the history.
The patient had a suspected uterine perforation during a recent dilation and curettage, which carries a high risk of concomitant injury to adjacent structures, particularly the bowel.
Establishing the mechanism of injury narrows the differential diagnosis for postoperative abdominal pain.
2
Assess the patient's current clinical and hemodynamic status.
The patient presents with fever, hypotension (86/52 mm Hg), tachycardia, and a rigid abdomen with rebound tenderness.
Hemodynamic instability combined with diffuse peritoneal signs indicates generalized peritonitis and septic shock, classifying this as an acute surgical emergency.
3
Determine the appropriate management pathway for an unstable surgical abdomen.
Immediate operative intervention is required to identify the source of contamination and perform a repair.
Diagnostic imaging or conservative observation is contraindicated in unstable patients as it delays necessary source control.

Key Concept

Patients who develop generalized peritonitis and hemodynamic instability following a gynecologic procedure with a suspected uterine perforation require immediate exploratory laparotomy for suspected bowel injury. Diagnostic imaging is contraindicated in unstable patients.
Estimated Time:1m 15s
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Topics

Gynecologic Procedures and Complications

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