title: Choice of electrode in electromyography of the external urethral and anal sphincters.
abstract: The needle, anal and catheter methods of performing simultaneous cystometry and pelvic floor electromyography were compared in 29 patients. Urethral sphincter electromyographic recordings consistently were satisfactory with a needle electrode, whereas the catheter surface electrode caused recording artifacts and was fragile. Anal sphincter electromyography was more reliable with a needle electrode than with an anal surface electrode.
mesh_terms: D004566:Electrodes; D004576:Electromyography / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D008297:Male