Upper urinary tract changes in patients with spinal cord injury

Area of Science:

• Urology
• Nephrology
• Neurology

Background:

• Spinal cord injury (SCI) frequently leads to secondary complications affecting the urinary system.
• Upper urinary tract (UUT) deterioration is a significant concern in SCI patients, impacting long-term health and survival.

Purpose of the Study:

• To investigate the prevalence and characteristics of upper urinary tract pathological changes in patients with spinal cord injury.
• To correlate urographic findings with clinical data, including infection rates and renal function.
• To elucidate the underlying pathophysiology of UUT deterioration in SCI.

Main Methods:

• Retrospective review of 206 intravenous urograms from 119 patients with SCI.
• Correlation of urographic findings with clinical data, including urine culture results and history of febrile urinary tract infections (UTIs).

Main Results:

• Pathological changes in the upper urinary tracts were observed in 42% of patients.
• Impaired renal emptying was the most common pathological finding.
• Patients with pathological urograms experienced significantly more bacteriuria and febrile UTIs during follow-up compared to those with normal urograms.
• Severe renal changes were consistently associated with impaired renal emptying.

Conclusions:

• Functional or mechanical lower urinary tract obstruction is the primary driver of upper tract deterioration in SCI patients.
• Active management of lower urinary tract issues is essential to prevent irreversible renal damage.
• Early intervention can mitigate the risk of severe renal complications in SCI survivors.