Urological trauma management

🚩 Diagnosis - The Red Flag Triage

Initial assessment focuses on identifying signs suggestive of specific genitourinary injuries. Triage based on mechanism and physical exam findings.

• Renal Injury: Flank pain/ecchymosis, lower rib fractures (10-12), gross hematuria.
• Bladder Injury: Pelvic fracture, gross hematuria, suprapubic pain, inability to void.
• Urethral Injury: Blood at the meatus, high-riding prostate, scrotal/perineal hematoma.

⭐ Blood at the meatus is a cardinal sign of urethral injury. ⚠️ DO NOT place a Foley catheter until a retrograde urethrogram (RUG) rules out injury.

🩹 Management - Kidney Calamities

• Initial: ABCs, FAST exam.
• Imaging: CT with IV contrast is the gold standard for staging injury.
• Conservative: Mainstay for >90% of blunt injuries if hemodynamically stable. Includes bed rest, serial H&H, and monitoring.
• Intervention Indications:
  • Hemodynamic instability.
  • Expanding/pulsatile retroperitoneal hematoma.
  • AAST Grade V (e.g., pedicle avulsion).

⭐ Most blunt renal injuries, even high-grade (I-IV), are managed non-operatively if the patient is hemodynamically stable.

💥 Management - Bladder & Ureteral Blowouts

Bladder Rupture: Management is dictated by the location of the tear, identified on retrograde cystogram.

• Ureteral Injury:
  • Often iatrogenic (pelvic surgery) or from penetrating trauma.
  • Management:
    • Partial tear: Ureteral (JJ) stent.
    • Complete transection: Surgical repair (ureteroureterostomy).

⭐ Intraperitoneal bladder rupture requires immediate surgical repair to prevent life-threatening chemical peritonitis from urine in the abdomen.

🚑 Management - Urethral Disruption Drama

• Presentation: Suspect in pelvic trauma with blood at meatus, high-riding prostate, perineal hematoma, or urinary retention.
• Crucial First Step: ALWAYS perform a retrograde urethrogram (RUG) in stable patients before any catheterization attempt.
• Management:
  • Initial Diversion: A suprapubic tube is placed for urinary drainage. This is done immediately in unstable patients or after RUG confirms a tear.
  • Definitive Repair: Delayed urethroplasty is performed 3-6 months later, allowing inflammation to resolve.

⭐ High-Yield: Blind Foley catheter placement is contraindicated. It can convert a partial tear into a complete disruption, complicating future repair.

💥 Complications - The Dangerous Aftermath

• Early (Hours to Days):
  • Hemorrhage: Can lead to hypovolemic shock.
  • Infection: Abscess formation, peritonitis, or urosepsis.
  • Urinoma: Encapsulated collection of extravasated urine.
  • Acute Kidney Injury (AKI): From hypoperfusion or obstruction.
• Late (Weeks to Years):
  • ⚠️ Strictures: Urethral or ureteral scarring causing obstructive uropathy.
  • Fistulas: Abnormal connections (e.g., vesicovaginal).
  • Incontinence & Erectile Dysfunction.

⭐ Page Kidney: A rare cause of secondary hypertension post-renal trauma. A fibrotic subcapsular hematoma compresses the renal parenchyma, activating the RAAS.

⚡ Biggest Takeaways

• Renal trauma: Most common; manage conservatively unless hemodynamically unstable. CT with IV contrast is key for staging.
• Bladder rupture: Suspect with pelvic fracture and gross hematuria. Diagnose with retrograde cystogram. Intraperitoneal needs surgery; extraperitoneal needs Foley drainage.
• Posterior urethral injury: Suspect with pelvic fracture, blood at meatus, and a high-riding prostate.
• First step for suspected urethral injury is a retrograde urethrogram (RUG).
• AVOID blind Foley catheterization in urethral trauma; perform suprapubic cystostomy.