Differentiation between neurogenic and prostatic obstruction using the intraprostatic spiral. A case report.

Insertion of a urethral spiral is a simple, reversible method to distinguish between prostatic obstruction and neurogenic dysfunction. A patient with indwelling catheter for seven years was treated with the urethral spiral. This established a normal voiding pattern, confirming prostatic hypertrophy to be the cause of obstruction. Later TUR-P was successfully performed.