[Electrophysiological study of the distal motor branch of the internal pudendal nerve]. / Etude électrophysiologique de la branche motrice distale du nerf honteux interne.

The authors describe their experience with the Swash technique. It consists of the measurement of the latency over the distal segment of the motor branch of the pudendal nerve following a transrectal stimulation of the pudendal nerve during a rectal examination. The response is picked up from the anal sphincter by the use of a surface electrode and from the bulbocavernosus muscle with a needle electrode.