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J Urol. 1980 Jul;124(1):75-7. doi: 10.1016/s0022-5347(17)55303-3.

Choice of electrode in electromyography of the external urethral and anal sphincters.

The Journal of urology

D G King, C T Teague

PMID: 7411727 DOI: 10.1016/s0022-5347(17)55303-3

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.

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