Matches in SemOpenAlex for { <https://semopenalex.org/work/W3031771764> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W3031771764 endingPage "734" @default.
- W3031771764 startingPage "730" @default.
- W3031771764 abstract "ObjectiveMedian nerve motor conduction studies should be performed with supramaximal stimulation. However, overstimulation at the wrist can cause co-stimulation of the ulnar nerve which results in depolarization of ulnar innervated muscles in the thenar space and changes in the CMAP distal latency and amplitude. In testing carpal tunnel syndrome (CTS), this is a common technical error for both the beginners and experienced electromyographers. This study reports the normal ulnar-thenar CMAP distal latency relevant to the electrodiagnostic evaluation for CTS.MethodsMedian and ulnar nerve motor nerve conduction studies were performed in 112 normal subjects on 224 sides, and in 16 individuals with CTS on 18 sides. In a subset of 10 healthy subjects, the median nerve was stimulated with sequentially increasing currents to obtain 30%, 50%, 70%, and 100% of maximum CMAP amplitude, and with 120%, 150% and 200% supra-maximal stimulation. CMAP characteristics were measured for all stimulation currents. In CTS subjects, after obtaining the median-APB CMAP, the currents were sequentially increased until ulnar co-stimulation was obtained with changes of CMAP latency and waveform.ResultsIn normal subjects, the ulnar-thenar CMAP distal latency was 3.17±0.25 ms, and amplitude 6.60±1.07 mV; the median-APB latency was 3.45±0.31 ms and the amplitude was 6.47±1.08 mV. In normal subjects, the increased stimulation intensity reduced the median- APB distal latency by 0.1 to 0.3 ms. There was no further change in latency with up to 200% supra-maximal stimulation. In CTS patients, with increased intensity of stimulation resulting in co-stimulation of ulnar nerve, the median-thenar distal latency reduced by 0.5-8.7 ms.ConclusionsDuring median-APB testing with increasing intensity of stimulation, a decrease in latency of over 0.3 ms with a shortened latency in the range of 2.9 to 4.1 ms might be suggestive of probable co-stimulation of the ulnar nerve.Key words: Carpal tunnel syndrome; Ulnar nerve co-stimulation; Ulnar-thenar distal latency" @default.
- W3031771764 created "2020-06-05" @default.
- W3031771764 creator A5029343000 @default.
- W3031771764 creator A5039890670 @default.
- W3031771764 creator A5068253534 @default.
- W3031771764 creator A5088226428 @default.
- W3031771764 date "2016-10-25" @default.
- W3031771764 modified "2023-09-23" @default.
- W3031771764 title "Co-stimulation of ulnar nerve affects median nerve distal latency in carpal tunnel syndrome: A quantitative measurement" @default.
- W3031771764 doi "https://doi.org/10.3760/cma.j.issn.0254-1424.2016.10.003" @default.
- W3031771764 hasPublicationYear "2016" @default.
- W3031771764 type Work @default.
- W3031771764 sameAs 3031771764 @default.
- W3031771764 citedByCount "0" @default.
- W3031771764 crossrefType "journal-article" @default.
- W3031771764 hasAuthorship W3031771764A5029343000 @default.
- W3031771764 hasAuthorship W3031771764A5039890670 @default.
- W3031771764 hasAuthorship W3031771764A5068253534 @default.
- W3031771764 hasAuthorship W3031771764A5088226428 @default.
- W3031771764 hasConcept C105702510 @default.
- W3031771764 hasConcept C119599485 @default.
- W3031771764 hasConcept C126322002 @default.
- W3031771764 hasConcept C127413603 @default.
- W3031771764 hasConcept C141071460 @default.
- W3031771764 hasConcept C151626666 @default.
- W3031771764 hasConcept C179253579 @default.
- W3031771764 hasConcept C185263204 @default.
- W3031771764 hasConcept C24998067 @default.
- W3031771764 hasConcept C2778216619 @default.
- W3031771764 hasConcept C2778931672 @default.
- W3031771764 hasConcept C2779110535 @default.
- W3031771764 hasConcept C2779658331 @default.
- W3031771764 hasConcept C2779746960 @default.
- W3031771764 hasConcept C2781184374 @default.
- W3031771764 hasConcept C2994188736 @default.
- W3031771764 hasConcept C42219234 @default.
- W3031771764 hasConcept C71924100 @default.
- W3031771764 hasConcept C82876162 @default.
- W3031771764 hasConceptScore W3031771764C105702510 @default.
- W3031771764 hasConceptScore W3031771764C119599485 @default.
- W3031771764 hasConceptScore W3031771764C126322002 @default.
- W3031771764 hasConceptScore W3031771764C127413603 @default.
- W3031771764 hasConceptScore W3031771764C141071460 @default.
- W3031771764 hasConceptScore W3031771764C151626666 @default.
- W3031771764 hasConceptScore W3031771764C179253579 @default.
- W3031771764 hasConceptScore W3031771764C185263204 @default.
- W3031771764 hasConceptScore W3031771764C24998067 @default.
- W3031771764 hasConceptScore W3031771764C2778216619 @default.
- W3031771764 hasConceptScore W3031771764C2778931672 @default.
- W3031771764 hasConceptScore W3031771764C2779110535 @default.
- W3031771764 hasConceptScore W3031771764C2779658331 @default.
- W3031771764 hasConceptScore W3031771764C2779746960 @default.
- W3031771764 hasConceptScore W3031771764C2781184374 @default.
- W3031771764 hasConceptScore W3031771764C2994188736 @default.
- W3031771764 hasConceptScore W3031771764C42219234 @default.
- W3031771764 hasConceptScore W3031771764C71924100 @default.
- W3031771764 hasConceptScore W3031771764C82876162 @default.
- W3031771764 hasIssue "10" @default.
- W3031771764 hasLocation W30317717641 @default.
- W3031771764 hasOpenAccess W3031771764 @default.
- W3031771764 hasPrimaryLocation W30317717641 @default.
- W3031771764 hasRelatedWork W169382627 @default.
- W3031771764 hasRelatedWork W1983549165 @default.
- W3031771764 hasRelatedWork W1997463198 @default.
- W3031771764 hasRelatedWork W2019139816 @default.
- W3031771764 hasRelatedWork W2041996320 @default.
- W3031771764 hasRelatedWork W2058478938 @default.
- W3031771764 hasRelatedWork W2122637853 @default.
- W3031771764 hasRelatedWork W2136978234 @default.
- W3031771764 hasRelatedWork W2315194093 @default.
- W3031771764 hasRelatedWork W2348543088 @default.
- W3031771764 hasRelatedWork W2361784344 @default.
- W3031771764 hasRelatedWork W2363043670 @default.
- W3031771764 hasRelatedWork W2366419649 @default.
- W3031771764 hasRelatedWork W2373419210 @default.
- W3031771764 hasRelatedWork W2402500953 @default.
- W3031771764 hasRelatedWork W2413103294 @default.
- W3031771764 hasRelatedWork W2802736841 @default.
- W3031771764 hasRelatedWork W2888824783 @default.
- W3031771764 hasRelatedWork W2938545510 @default.
- W3031771764 hasRelatedWork W73363370 @default.
- W3031771764 hasVolume "38" @default.
- W3031771764 isParatext "false" @default.
- W3031771764 isRetracted "false" @default.
- W3031771764 magId "3031771764" @default.
- W3031771764 workType "article" @default.