S37.1

Clinical Causes: Surgical procedures in the pelvic or abdominal area, especially gynecological, urological, or colorectal surgeries Traumatic injuries from accidents, falls, or penetrating wounds Iatrogenic injuries during diagnostic or therapeutic interventions, such as ureteroscopy or imaging-guided procedures Obstructive conditions like kidney stones that may damage the ureter Tumors or malignancies affecting the ureter or adjacent organs Inflammatory conditions causing weakening or perforation of the ureter

Key Symptoms: Flank pain or abdominal discomfort Hematuria (blood in urine) Signs of infection, such as fever or malaise if infection develops Urinary leakage or fistula formation in severe cases Difficulty urinating or changes in urine flow Swelling or tenderness in the affected area Unexplained decrease in urine output if blockage occurs Nausea or vomiting in case of severe pain

Diagnosis Path: Diagnosing an injury to the ureter typically involves a combination of physical examinations and diagnostic tests. Imaging studies are crucial for visualization and confirmation of injury. Common diagnostic methods include: - **Ultrasound:** An initial, non-invasive imaging that can detect swelling or fluid accumulation. - **Contrast-enhanced CT scan:** Offers detailed imaging to identify injuries, leaks, or obstructions. - **Intravenous pyelogram (IVP):** A specialized X-ray using contrast dye to evaluate the ureter and kidney function. - **Retrograde pyelography:** An invasive technique where dye is injected directly into the ureter during cystoscopy for precise visualization. - **Magnetic Resonance Urography (MRU):** Provides detailed images without radiation, useful in complex cases. Early diagnosis is vital to prevent complications such as urinoma formation, infection, or loss of renal function.

Treatment Protocols: Management of ureter injuries depends on the severity and location of the injury. Approaches may include: - **Conservative management:** Small, uncomplicated injuries may heal with ureteral stenting, requiring placement of a stent to facilitate healing and maintain urine flow. - **Surgical repair:** Significant injuries or those not responding to conservative therapy often require surgical intervention, which may involve: - End-to-end ureteral anastomosis - Ureteral reimplantation - Use of tissue grafts or flaps in complex cases - Ureteral diversion procedures - **Monitoring and follow-up:** Regular imaging and clinical assessments are essential to ensure healing and function restoration. Advances in minimally invasive surgery, such as laparoscopy and robotic-assisted procedures, have improved outcomes for ureter injury repair. Post-treatment, patients may require ongoing surveillance to detect potential complications or recurrent issues.