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Diffuse abnormal electromyographic insertional activity: a preliminary report.
Arch Phys Med Rehabil. 1979 Sep; 60(9):419-22.AP

Abstract

The authors observed 10 patients referred for electromyographic examination in whom EMG findings were normal except for the presence of provoked positive sharp waves in essentially every muscle tested. The positive sharp waves were present only following needle electrode insertion. No fibrillation or fasciculation potentials were seen. Motor unit action potentials were normal, as were nerve conduction and repetitive stimulation studies. The quantity of provoked positive sharp waves was found to vary from time to time, from muscle to muscle and from 1 region of the muscle to another. Detailed clinical evaluations for neuromuscular disorders, electrolyte and metabolic abnormalities and underlying carcinomas were negative. Muscle biopsy in 2 patients, including histochemical analysis in one of them, was normal. Results of single-fiber electromyography were normal in 1 patient. The abnormality was found in family members and appears to be of an autosomal dominant inheritance.

Authors

No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

496609

Citation

Wiechers, D O., and E W. Johnson. "Diffuse Abnormal Electromyographic Insertional Activity: a Preliminary Report." Archives of Physical Medicine and Rehabilitation, vol. 60, no. 9, 1979, pp. 419-22.
Wiechers DO, Johnson EW. Diffuse abnormal electromyographic insertional activity: a preliminary report. Arch Phys Med Rehabil. 1979;60(9):419-22.
Wiechers, D. O., & Johnson, E. W. (1979). Diffuse abnormal electromyographic insertional activity: a preliminary report. Archives of Physical Medicine and Rehabilitation, 60(9), 419-22.
Wiechers DO, Johnson EW. Diffuse Abnormal Electromyographic Insertional Activity: a Preliminary Report. Arch Phys Med Rehabil. 1979;60(9):419-22. PubMed PMID: 496609.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Diffuse abnormal electromyographic insertional activity: a preliminary report. AU - Wiechers,D O, AU - Johnson,E W, PY - 1979/9/1/pubmed PY - 1979/9/1/medline PY - 1979/9/1/entrez SP - 419 EP - 22 JF - Archives of physical medicine and rehabilitation JO - Arch Phys Med Rehabil VL - 60 IS - 9 N2 - The authors observed 10 patients referred for electromyographic examination in whom EMG findings were normal except for the presence of provoked positive sharp waves in essentially every muscle tested. The positive sharp waves were present only following needle electrode insertion. No fibrillation or fasciculation potentials were seen. Motor unit action potentials were normal, as were nerve conduction and repetitive stimulation studies. The quantity of provoked positive sharp waves was found to vary from time to time, from muscle to muscle and from 1 region of the muscle to another. Detailed clinical evaluations for neuromuscular disorders, electrolyte and metabolic abnormalities and underlying carcinomas were negative. Muscle biopsy in 2 patients, including histochemical analysis in one of them, was normal. Results of single-fiber electromyography were normal in 1 patient. The abnormality was found in family members and appears to be of an autosomal dominant inheritance. SN - 0003-9993 UR - https://www.unboundmedicine.com/medline/citation/496609/Diffuse_abnormal_electromyographic_insertional_activity:_a_preliminary_report_ DB - PRIME DP - Unbound Medicine ER -