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Difficulty: MediumSurgical and Procedural Interventions

A 68-year-old woman with a history of type 2 diabetes mellitus is brought to the emergency department due to altered mental status, fever, and right-sided flank pain for the past 24 hours. Vital signs reveal a temperature of 39.2°C (102.6°F), blood pressure of 85/50 mm Hg, heart rate of 122/min, and respiratory rate of 24/min. Laboratory studies show a leukocyte count of 22,000/mm³. Non-contrast CT of the abdomen and pelvis demonstrates an 8-mm calculus in the right proximal ureter with moderate hydroureteronephrosis and perinephric stranding. Arrange the following interventions in the most appropriate sequence for the management of this patient.

  1. 1Initiate rapid intravenous fluid resuscitation and broad-spectrum antimicrobial therapy
  2. 2Perform emergent ureteral decompression with a ureteral stent or percutaneous nephrostomy tube
  3. 3Continue directed antimicrobial therapy until clinical and hemodynamic stabilization is achieved
  4. 4Perform definitive stone extraction via ureteroscopy or shock wave lithotripsy

Answer

The most appropriate sequence is: 1) Medical stabilization with fluids and antibiotics, 2) Emergent ureteral decompression, 3) Continued medical therapy for complete resolution of sepsis, and 4) Elective definitive stone extraction.
In a patient presenting with an infected, obstructed ureteral calculus causing septic shock, the management must follow a strict sequence. First, the patient must be medically stabilized with aggressive intravenous fluid resuscitation and broad-spectrum antibiotics. Second, emergent source control is required through minimally invasive decompression of the collecting system, achieved either by retrograde placement of a ureteral stent or antegrade placement of a percutaneous nephrostomy tube. Third, the patient is observed and continued on directed antibiotics until the systemic infection has completely resolved. Finally, definitive management of the stone, such as ureteroscopy with laser lithotripsy or shock wave lithotripsy, is performed on an elective outpatient basis once the patient is stable and infection-free.

Step-by-Step Solution

1
Recognize the patient's presentation as an infected, obstructed kidney causing septic shock.
Identified the need for immediate sepsis protocols and urologic source control.
An obstructed urinary system in the setting of infection rapidly leads to severe sepsis and hemodynamic collapse.
2
Determine the first priority in management.
Medical stabilization with IV fluids and broad-spectrum antibiotics.
Airway, Breathing, and Circulation (ABC) combined with early empiric antibiotics remain the cornerstone of initial sepsis management.
3
Identify the next procedural step for source control.
Emergent decompression of the collecting system via stent or nephrostomy.
Antibiotics alone cannot penetrate an obstructed, purulent collecting system; drainage is required.
4
Decide on the timing of definitive stone treatment.
Postpone definitive lithotripsy or extraction until after the infection has resolved.
Definitive endourologic procedures increase intrarenal pressure and can precipitate fatal septic shock if performed during active infection.

Key Concept

Management sequence for obstructive pyelonephritis with sepsis includes initial medical stabilization, emergent collecting system decompression, followed by delayed, elective definitive stone management.
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Topics

Surgical and Procedural Interventions

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