Controlled electrical bladder evacuation via stimulation of the sacral micturition center or direct detrusor stimulation.
Electrical stimulation of the spinal cord and of the detrusor was compared in 5 'acute' dogs. Strong detrusor contraction and rise in intravesical pressure were obtained either way but, with spinal cord stimulation, concomitant rise in urethral resistance prevented micturition. Stimulation with a bladder pacemaker induced detrusor contraction high enough to overcome outflow resistance, thus was more effective in initiating voiding.
D000818:Animals; D004285:Dogs; D004558:Electric Stimulation; D005260:Female; D009132:Muscles / Q000502:physiology*; D011312:Pressure; D013116:Spinal Cord / Q000502:physiology*; D001743:Urinary Bladder / Q000502:physiology; D014554:Urination