SURFACE STIMULATION SINGLE-FIBER ELECTROMYOGRAPHY

Stimulation single-fiber electromyography (S-SFEMG) is an alternative method to SFEMG during voluntary contraction (VC-SFEMG). S-SFEMG is pr eferred to VC-SFEMG in uncooperating patients, children, and patients having severe weakness. Surface stimulation is a viable alternative to needle stimulation in S-SFEMG, In the present study, surface versus n eedle stimulation of facial nerve has been tested by recording from th e orbicularis oculi and frontalis muscles. Jitter values obtained by b oth methods have been found to be nearly equal. (C) 1998 John Wiley & Sons, Inc.