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Effect of stimulator orientation on F‐wave persistence
Author(s) -
Young Michael S.,
Triggs William J.
Publication year - 1998
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/(sici)1097-4598(199810)21:10<1324::aid-mus13>3.0.co;2-1
Subject(s) - persistence (discontinuity) , electrodiagnosis , stimulation , f wave , orientation (vector space) , ulnar nerve , medicine , anatomy , nerve conduction velocity , geometry , mathematics , geology , geotechnical engineering , elbow
Most electrodiagnosis texts advocate cathode distal stimulation (CDS) for nerve conduction, but suggest cathode proximal stimulation (CPS) for F waves, because of anodal block. We postulated that CDS and CPS elicit F waves of similar persistence. We studied 657 (207 median, 204 ulnar, 136 tibial, and 110 peroneal) nerves in 225 consecutive subjects. In the median nerve, CDS elicited F waves of slightly greater persistence than CPS. Stimulator orientation did not affect F‐wave persistence in the remaining nerves. © 1998 John Wiley & Sons, Inc. Muscle Nerve 21:1324–1326, 1998.