[Effects of Aging and Sex Differences on the Median Nerve: Relationship Between Nerve Conduction Study and Ultrasonographic Cross-Sectional Nerve Area].

Rinsho byori. The Japanese journal of clinical pathology Pub Date : 2016-10-01

Daisuke Ito, Tsuneo Watanabe, Akihiro Hirakawa, Ako Ito, Yuzuru Nohisa, Nobuyuki Furuta, Mitsuru Seishima

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Abstract

Objective: The aim of this study was to evaluate the relationship between nerve conduction and sonographic measurements of the median nerve, and to investigate the effects of aging and sex on nerve structure.

Methods: Measurements from both hands of 82 healthy volunteers were included in this study (45 men and 37 women, 38.9 ?17.7 years). The cross-sectional area(CSA) of the median nerve was evaluated at the carpal tunnel inlet (MA) and at the midpoint of the forearm (MB).

Results: The CSA of the median nerve at the MA was significantly correlated with age (r=0.501, P< 0.001), and distal motor latency (r=0.269, P<0.001). Although this study demonstrated the effects of the sex dif- ferences and aging on the CSA of the median nerve at MA, there was no significant effect at the MB.

Conclusions: Our study suggests that aging could affect median nerve structure, especially at the anatomical entrapment point. [Original].

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[年龄和性别差异对正中神经的影响:神经传导研究与超声横断神经面积的关系]。

目的:探讨正中神经超声测量与神经传导的关系，探讨年龄和性别对正中神经结构的影响。方法:82例健康志愿者(男性45例，女性37例，年龄38.9 ~ 17.7岁)双手测量数据纳入本研究。在腕管入口(MA)和前臂中点(MB)处评估正中神经的横截面积(CSA)。结果:MA处正中神经CSA与年龄(r=0.501, P< 0.001)和远端运动潜伏期(r=0.269, P)显著相关。结论:我们的研究表明，年龄会影响正中神经结构，特别是在解剖夹持点。(最初的)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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