Near-tendon single-fiber electromyography in patients with myopathy

We investigated how properties of single-fiber action potentials (SFAP) and jitter changed in different recording sites in patients with myopathy and controls. SFAP and jitter were recorded using a disposable single-fiber electrode in the biceps brachii muscle of three patients and controls in two s...

Full description

Saved in:
Bibliographic Details
Published inNeurophysiologie clinique Vol. 52; no. 2; pp. 174 - 177
Main Authors Sirin, Nermin Gorkem, Mehdikhanova, Lala, Bekdik Sirinocak, Pinar, Arkali, Nuran Burcu, Baslo, Mehmet Baris, Kocasoy Orhan, Elif
Format Journal Article
LanguageEnglish
Published France Elsevier Masson SAS 01.04.2022
Elsevier Science Ltd
Subjects
Electromyography
Jitter
Myopathy
Single-fiber action potential
Single-fiber electromyography
Tendon recording
Jitter
Single-fiber action potential
Single-fiber electromyography
Tendon recording
Myopathy
Online AccessGet full text
ISSN0987-7053
1769-7131
1769-7131
DOI10.1016/j.neucli.2021.12.008

Cover

More Information
Summary:We investigated how properties of single-fiber action potentials (SFAP) and jitter changed in different recording sites in patients with myopathy and controls. SFAP and jitter were recorded using a disposable single-fiber electrode in the biceps brachii muscle of three patients and controls in two sites: i) near the end-plate zone (EPZ), ii) near the tendon. SFAP and spike duration were longer in patients than in controls. Moving the needle away from the EPZ did not change the electrophysiologic parameters. Longer SFAP duration may reflect slow velocity in muscle fibers and serve as an indicator for small fiber size in myopathy.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:0987-7053
1769-7131
1769-7131
DOI:10.1016/j.neucli.2021.12.008