Ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome

Abstract Objective To explore the sensitivity of median and ulnar nerve sensory latency differences in diagnosing carpal tunnel syndrome (CTS) at different severities. Methods CTS patients were divided into three groups based on disease severity (mild, moderate, and severe). Distal latency of sensor...

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Autores principales:	Qingping Wang, Hong Chu, Hongyang Wang, Yan Jin, Xiaoquan Zhao, Chao Weng, Zuneng Lu
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	carpal tunnel syndrome median nerve ulnar nerve nerve conduction studies sensory distal latency Neurology. Diseases of the nervous system RC346-429
Acceso en línea:	https://doaj.org/article/41df64798b63430d934b9de83ee23f42
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spelling	oai:doaj.org-article:41df64798b63430d934b9de83ee23f422021-11-07T12:23:14ZRing finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome10.1186/s12883-021-02462-81471-2377https://doaj.org/article/41df64798b63430d934b9de83ee23f422021-11-01T00:00:00Zhttps://doi.org/10.1186/s12883-021-02462-8https://doaj.org/toc/1471-2377Abstract Objective To explore the sensitivity of median and ulnar nerve sensory latency differences in diagnosing carpal tunnel syndrome (CTS) at different severities. Methods CTS patients were divided into three groups based on disease severity (mild, moderate, and severe). Distal latency of sensory nerve action potential (SNAP) for the median and ulnar nerves was recorded. The sensitivity of SNAP distal latency to CTS and its correlation with CTS severity were analyzed. Results Significant differences were found in the median nerve sensory action potential distal latency (MSDL) and in the median and ulnar sensory latency difference to ring finger (MUD) but not in the ulnar nerve sensory action potential distal latency (USDL) between CTS and control. The sensitivity and specificity were 92.2 and 99.4% with an MSDL cutoff value of 2.40 ms, respectively, and were both 100% with a MUD cutoff value of 0.33 ms. There was no significant difference in USDL among the CTS and control groups. Significant differences were found in MSDL and MUD among the CTS severities and between mild and moderate CTS, but not between mild and severe CTS or between moderate and severe CTS. Correlations with CTS severity were observed for MSDL and MUD but not for USDL. Conclusion The ulnar nerve of the CTS patients was not damaged. A smaller MSDL reflected median nerve damage, which can be used for the early diagnosis of CTS. MUD correlated with CTS severity with a higher sensitivity than MSDL, which can provide therapeutic insight without pain to patients.Qingping WangHong ChuHongyang WangYan JinXiaoquan ZhaoChao WengZuneng LuBMCarticlecarpal tunnel syndromemedian nerveulnar nervenerve conduction studiessensory distal latencyNeurology. Diseases of the nervous systemRC346-429ENBMC Neurology, Vol 21, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carpal tunnel syndrome median nerve ulnar nerve nerve conduction studies sensory distal latency Neurology. Diseases of the nervous system RC346-429
spellingShingle	carpal tunnel syndrome median nerve ulnar nerve nerve conduction studies sensory distal latency Neurology. Diseases of the nervous system RC346-429 Qingping Wang Hong Chu Hongyang Wang Yan Jin Xiaoquan Zhao Chao Weng Zuneng Lu Ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome
description	Abstract Objective To explore the sensitivity of median and ulnar nerve sensory latency differences in diagnosing carpal tunnel syndrome (CTS) at different severities. Methods CTS patients were divided into three groups based on disease severity (mild, moderate, and severe). Distal latency of sensory nerve action potential (SNAP) for the median and ulnar nerves was recorded. The sensitivity of SNAP distal latency to CTS and its correlation with CTS severity were analyzed. Results Significant differences were found in the median nerve sensory action potential distal latency (MSDL) and in the median and ulnar sensory latency difference to ring finger (MUD) but not in the ulnar nerve sensory action potential distal latency (USDL) between CTS and control. The sensitivity and specificity were 92.2 and 99.4% with an MSDL cutoff value of 2.40 ms, respectively, and were both 100% with a MUD cutoff value of 0.33 ms. There was no significant difference in USDL among the CTS and control groups. Significant differences were found in MSDL and MUD among the CTS severities and between mild and moderate CTS, but not between mild and severe CTS or between moderate and severe CTS. Correlations with CTS severity were observed for MSDL and MUD but not for USDL. Conclusion The ulnar nerve of the CTS patients was not damaged. A smaller MSDL reflected median nerve damage, which can be used for the early diagnosis of CTS. MUD correlated with CTS severity with a higher sensitivity than MSDL, which can provide therapeutic insight without pain to patients.
format	article
author	Qingping Wang Hong Chu Hongyang Wang Yan Jin Xiaoquan Zhao Chao Weng Zuneng Lu
author_facet	Qingping Wang Hong Chu Hongyang Wang Yan Jin Xiaoquan Zhao Chao Weng Zuneng Lu
author_sort	Qingping Wang
title	Ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome
title_short	Ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome
title_full	Ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome
title_fullStr	Ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome
title_full_unstemmed	Ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome
title_sort	ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome
publisher	BMC
publishDate	2021
url	https://doaj.org/article/41df64798b63430d934b9de83ee23f42
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Ring finger sensory latency difference in the diagnosis and treatment of carpal tunnel syndrome

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