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EMG Vagus Nerve Stimulator Artifact.
sbajanishvili@yahoo.com.
EMG artifact produced by a VNS
stimulator is
described. A patient with a VNS stimulator underwent an EMG study for
suspected ALS. Artifacts that appeared similar to positive sharp waves
or fibrillations were noted that could produce a false clinical
diagnosis. These VNS-EMG artifacts matched well with the VNS
generator's set parameters. We conclude that EMG findings must be
interpreted with caution in patients with VNS implants and also that
EMG may have a possible monitoring value for VNS activity.
PMID: 17139390 [PubMed - in process]
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