Comparison of electric and magnetic coil stimulation in the supraclavicular region.

Abstract:

:We compared the compound motor action potentials (CMAPs) evoked in the biceps, triceps, and abductor digiti minimi (ADM) muscles by conventional electrical stimulation at Erb's point (EP), and by magnetic coil stimulation of the supraclavicular region in 11 normal subjects. We found that magnetic coil stimulation was less effective than conventional stimulation in activating motor fibers in the brachial plexus in 45% of the recordings analyzed. CMAP amplitudes greater than those obtained with EP electrical stimulation were seen in 16% of recordings with supraclavicular magnetic stimulation, and in 33% of recordings with cervical magnetic stimulation, indicating that EP electrical stimulation is submaximal in a large proportion of cases.

journal_name

Muscle Nerve

journal_title

Muscle & nerve

authors

Cros D,Gominak S,Shahani B,Fang J,Day B

doi

10.1002/mus.880150509

subject

Has Abstract

pub_date

1992-05-01 00:00:00

pages

587-90

issue

5

eissn

0148-639X

issn

1097-4598

journal_volume

15

pub_type

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