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September 23, 2004Annals of Neurology309 citations

Electromyography guides toward subgroups of mutations in muscle channelopathies

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Why the study?

Can standardized electromyography exercise tests guide the molecular diagnosis of muscle channelopathies?

Population

51 case patients with chloride, sodium, or calcium channel mutations known to cause myotonia or periodic…

Comparison

Standardized protocols comprising short and long… vs 41 unaffected control subjects

Design

Cross-sectional

Authors

EFEmmanuel FournierMAMarianne ArzelDSDamien Sternberg

Discussion

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Overview

EMG patterns may aid mutation subgrouping in channelopathies; leaves open whether standardized tests should guide molecular diagnosis.

Structured PICO

Can standardized electromyography exercise tests guide the molecular diagnosis of muscle channelopathies?

P
Population
51 case patients with chloride, sodium, or calcium channel mutations known to cause myotonia or periodic paralysis, and 41 unaffected control subjects
I
Intervention
Standardized protocols comprising short and long exercise tests in electromyography
C
Comparator
41 unaffected control subjects
O
Outcome
Changes in compound muscle action potential (CMAP) and electromyographic patternssurrogate

Standardized short and long exercise tests during electromyography can identify specific patterns that correlate with underlying ion channel mutations, aiding in molecular diagnosis.

Cite This Study

Fournier et al. (2004) studied this question.

synapsesocial.com/papers/6a767aea3da069e66cbd34fbhttps://doi.org/10.1002/ana.20241
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