Differences in the handling of the EMG examination at seven European laboratories

Electroencephalography and Clinical Neurophysiology
Birger JohnsenG Sieben

Abstract

This study was undertaken to analyse epidemiological and methodological differences in referral pattern, examination techniques and distribution of diagnoses among different European EMG laboratories. Seven European EMG laboratories filled in questionnaires and sampled 700 cases retrospectively. The use of needle or surface electrodes for nerve studies and the selection of quantitative techniques for muscle studies exhibited considerable variation. The pattern of referral varied with respect to the type of referral source and the neurological expertise of the referring physician. The proportion of patients without any neurophysiological abnormality ranged from 16 to 33%. The 3 most common diagnostic groups were mononeuropathies, polyneuropathies and radiculopathies although a great inter-laboratory variation was found. The proportion of patients with multiple diagnoses varied from 0 to 23% and most of these diagnoses were from a few known combinations. The presence of an inter-laboratory variation suggests that the quality of the EMG examination may be improved by focussing on the use of techniques, strategies and diagnostic criteria.

References

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Citations

Dec 1, 1995·Electroencephalography and Clinical Neurophysiology·A Fuglsang-FrederiksenA Vila
Dec 1, 1995·Electroencephalography and Clinical Neurophysiology·B JohnsenA Vila
May 24, 2005·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Hatice TankisiUNKNOWN Esteem Project
Apr 23, 2003·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·H TankisiI Schofield
Nov 26, 1999·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·A Fuglsang-FrederiksenA Vila
Nov 16, 2013·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Mauro MondelliGiuseppe Greco
Jun 28, 2011·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Kirsten PugdahlIan S Schofield
Dec 14, 2004·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Kirsten PugdahlIan S Schofield
Aug 3, 2010·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Anders Fuglsang-Frederiksen, Kirsten Pugdahl
Aug 3, 2010·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Dario Cocito

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