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신경전도차단과 비정상 시간상 산포의 감별 진단기준

Other Titles
 diagnostic criteria of conduction block and abnormal temporal dispersion 
Authors
 손홍석  ;  박준수  ;  박윤길  ;  김윤진  ;  문재호 
Citation
 Journal of the Korean Association of EMG-Electrodiagnostic Medicine (대한근전도 전기진단의학회지), Vol.2(1) : 10-16, 2000 
Journal Title
Journal of the Korean Association of EMG-Electrodiagnostic Medicine(대한근전도 전기진단의학회지)
ISSN
 1229-6066 
Issue Date
2000
Keywords
Conduction block ; Temporal dispersion ; Diagnostic criteria ; Nerve conduction ; Amplitude decay ; Negative peak duration
Abstract
Objective : Conduction block and abnormal temporal dispersion are important electrophysiological parameters for demyelination. Many people have reported different criteria of the conduction block in amplitude, duration, area and insisted that the criteria should be different between each nerves of human race. The aims of the present investigation were to evaluate the amplitude, duration, and area ratio of compound muscle action potentials (CMAP) in the proximal to distal parts of the limbs, so to stand firm the diagnostic criteria between conduction block and abnormal temporal dispersion.
Methods : Measurements were made from median nerve, ulnar nerve, deep peroneal nerve, tibial nerve of 44 upper extremities and 38 lower extremities with Excel® electromyographic equipment in normal adults who don’t have any history and signs of peripheral neuropathies, and compared the CMAP ratios (proximal CMAP/distal CMAP) of peak to peak amplitude, negative duration area.
Results : Our study showed that the reduction of CMAP amplitude with proximal stimulation ranges from 18.4% to 22.2% in upper extremities and from 28.1% to 28.9% in lower extremities. The change of negative-peak duration ranged from 11.0% to 13.9% in upper extremities and from 17.9% to 25.0% in lower extremities. It was also showed that higher amplitude decay and the change of negative-peak duration
in peroneal nerve are prominent.
Conclusion : This study can provide useful and reliable informations on diagnostic criteria of conduction block by more than 25% drop of peak-to-peak amplitude with less than a 15% change of the negative-peak duration in upper extremities and by more than 30% drop of peak-to-peak amplitude with less than a 25% change of the negative-peak duration in lower extremities.
Files in This Item:
T200001835.pdf Download
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Rehabilitation Medicine (재활의학교실) > 1. Journal Papers
Yonsei Authors
Moon, Jae Ho(문재호)
Park, Yoon Ghil(박윤길) ORCID logo https://orcid.org/0000-0001-9054-5300
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/172021
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