Effects of Prolonged Vaginal Distension and β-Aminopropionitrile on Urinary Continence and Urethral Structure

Prolonged vaginal distension caused urodynamic changes and histologic abnormalities in the urethra, including reduced collagen content, fragmented elastic fibers, and sparsely arranged and shortened striated muscle fibers. BAPN appears to interfere with the restoration of collagen and elastic fibers.