Article |

The Diagnostic Value of Electromyography in Infantile Hypotonia

Roger J. Packer, MD; Mark J. Brown, MD; Peter H. Berman, MD
Am J Dis Child. 1982;136(12):1057-1059. doi:10.1001/archpedi.1982.03970480023005.
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• There is controversy over the usefulness of electromyography (EMG) in the examination of hypotonic infants with suspected neuromuscular disease. We compared the initial EMG findings of 51 such children under 1 year of age with their final clinical diagnoses determined by independent means. The EMG predicted the final diagnosis in 82% of infants less than 4 months of age and 85% of those over 4 months of age. Botulism was correctly identified by EMG in nine of 11 cases. The EMG diagnosis was identical to that obtained by muscle biopsy in 64% of cases in which biopsy was done, and diagnosis obtained by the two methods were inconsistent in only 14%. Electromyography is a sensitive and noninvasive diagnostic tool for the diagnosis of neuromuscular disease in infantile hypotonia.

(Am J Dis Child 1982;136:1057-1059)


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