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Zorluk: ZorGynecologic Procedures and Complications

A 45-year-old woman is evaluated for worsening right-sided back pain, nausea, and decreased urine output on postoperative day 2 following an uncomplicated total laparoscopic hysterectomy for uterine fibroids. Her temperature is 38.3°C (100.9°F), blood pressure is 120/80 mmHg, and pulse is 95/min. Physical examination shows right costovertebral angle tenderness. An indwelling Foley catheter is in place and has drained 20 mL of urine over the past 3 hours. Arrange the following diagnostic and therapeutic steps in the most appropriate sequential order to evaluate and manage this patient's condition.

  1. 1Flush the indwelling urethral catheter to assess for mechanical obstruction.
  2. 2Perform computed tomography urography to localize the suspected urinary tract injury.
  3. 3Attempt cystourethroscopy with retrograde ureteral stent placement.
  4. 4Proceed with percutaneous nephrostomy tube placement if retrograde access fails.

Cevap

The correct sequence is: flush the urethral catheter, perform computed tomography urography, attempt cystourethroscopy with retrograde ureteral stent placement, and proceed with percutaneous nephrostomy tube placement if retrograde access fails.
The correct sequence for evaluating and managing suspected postoperative ureteral injury begins with a bedside assessment to rule out Foley catheter malfunction by flushing the catheter. Once mechanical obstruction is excluded, the patient's unilateral flank pain, fever, and oliguria warrant imaging with CT urography to definitively identify the site and extent of the ureteral injury. Following diagnostic confirmation, the initial therapeutic approach is a minimally invasive cystoscopy with retrograde ureteral stenting. If the ureter is completely obstructed or transected, precluding retrograde stent passage, a percutaneous nephrostomy tube is placed to preserve renal function and decompress the upper urinary tract until surgical repair is feasible.

Adım Adım Çözüm

1
Evaluate the clinical presentation of postoperative oliguria accompanied by unilateral flank pain and fever.
Recognize the high likelihood of a ureteral injury, which is a known complication of laparoscopic hysterectomy due to the close anatomical proximity of the ureter to the uterine artery and infundibulopelvic ligament.
Understanding the timeline and presentation of ureteral injury is critical for initiating the correct management cascade.
2
Determine the first step in the general evaluation of oliguria in any catheterized patient.
Identify that mechanical obstruction of the Foley catheter must be ruled out first by flushing it.
Catheter malfunction is a common, immediately reversible cause of apparent oliguria and must be excluded before pursuing further complex workup.
3
Select the appropriate diagnostic imaging modality for a suspected ureteral injury after ruling out obstruction.
Identify CT urography as the preferred imaging study.
CT urography provides detailed visualization of the urinary tract and can pinpoint the exact location of obstruction or contrast leak.
4
Determine the step-wise interventional management for a confirmed ureteral injury.
Attempt retrograde stenting first, followed by percutaneous nephrostomy if stenting fails.
Retrograde stenting is less invasive and can often effectively bypass partial obstructions or small injuries. If it fails, percutaneous nephrostomy is required to immediately decompress the obstructed kidney.

Anahtar Kavram

The stepwise algorithmic management of suspected postoperative ureteral injury involves ruling out mechanical catheter obstruction, confirming and localizing the injury with CT urography, attempting minimally invasive retrograde ureteral stenting, and utilizing percutaneous nephrostomy as a backup if the retrograde approach is unsuccessful.
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Gynecologic Procedures and Complications

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