Temporal branch of facial nerve: a normative study of nerve conduction

Author:

Silva Paula Fabiana Sobral da1,Lima Maria Carolina Martins de2,Figueiroa José Natal3,Lins Otávio Gomes

Affiliation:

1. Instituto de Medicina Integral Professor Fernando Figueira; UFPE, Brazil

2. Instituto de Medicina Integral Professor Fernando Figueira; UFPE, Brazil; FBV/IMIP, Brazil

3. Instituto de Medicina Integral Professor Fernando Figueira; UFPE, Brazil; UFPE

Abstract

The temporal branch of the facial nerve is particularly vulnerable to traumatic injuries during surgical procedures. It may also be affected in clinical conditions. Electrodiagnostic studies may add additional information about the type and severity of injuries, thus allowing prognostic inferences. The objective of the present study was to develop and standardize an electrophysiological technique to specifically evaluate the temporal branch of the facial nerve. METHOD: Healthy volunteers (n=115) underwent stimulation of two points along the nerve trajectory, on both sides of the face. The stimulated points were distal (on the temple, over the temporal branch) and proximal (in retro-auricular region). Activities were recorded on the ipsilateral frontalis muscle. The following variables were studied: amplitude (A), distal motor latency (DML) and conduction velocity (NCV). RESULTS: Differences between the sides were not significant. The proposed reference values were: A >0.4 mV, DML <3.9 ms and NCV >40 m/s. Variation between hemifaces should account for less than 60% for amplitudes and latency, and should be inferior to 20% for conduction velocity. CONCLUSION: These measurements are an adequate way for proposing normative values for the electrophysiological evaluation of the temporal branch.

Publisher

FapUNIFESP (SciELO)

Subject

Neurology,Neurology (clinical)

Reference29 articles.

1. Neuroanatomia Funcional;Machado ABM,2006

2. Surgical anatomy of the facial nerve;Gosain AK;Clin Plast Surg,1995

3. Facial-zygomatic triangle: a relationship between the extracranial portion of facial nerve and the zygomatic arch;Campero A;Acta Neurochir,2008

4. Preservation of the frontotemporal branch of the facial nerve using the interfascial temporalis flap for pterional craniotom;Yasargyl MG;J Neurosurg,1987

5. An anatomicosurgical study of the temporal branch of the facial nerve;Ammirati M;Neurosurgery,1993

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3