Electromyographic and urethral pressure profilometry: assessment of urethral function before and after perineal...

Urethral pressure and electromyographic profiles were recorded in 10 healthy adult male cats before and after perineal urethrostomy. There was a significant decrease (P = 0 at 1 week after surgery, P = 0.002 at 3 weeks after surgery) in the mean maximum urethral pressure profile with associated loss of periurethral striated muscle activity.