Article Temporal branch of facial nerve A normative study of nerve conduction
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....
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.613.8030 2023-05-15T16:01:39+02:00 Article Temporal branch of facial nerve A normative study of nerve conduction Arq Neuropsiquiatr Paula Fabiana Sobral Silva Maria Carolina Martins Lima José Natal Figueiroa Otávio Gomes Lins The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.613.8030 http://www.scielo.br/pdf/anp/v68n4/v68n4a26.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.613.8030 http://www.scielo.br/pdf/anp/v68n4/v68n4a26.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.scielo.br/pdf/anp/v68n4/v68n4a26.pdf RESUMO text ftciteseerx 2016-01-08T14:38:40Z 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. Text DML Unknown |
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RESUMO Arq Neuropsiquiatr Paula Fabiana Sobral Silva Maria Carolina Martins Lima José Natal Figueiroa Otávio Gomes Lins Article Temporal branch of facial nerve A normative study of nerve conduction |
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RESUMO |
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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. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Arq Neuropsiquiatr Paula Fabiana Sobral Silva Maria Carolina Martins Lima José Natal Figueiroa Otávio Gomes Lins |
author_facet |
Arq Neuropsiquiatr Paula Fabiana Sobral Silva Maria Carolina Martins Lima José Natal Figueiroa Otávio Gomes Lins |
author_sort |
Arq Neuropsiquiatr |
title |
Article Temporal branch of facial nerve A normative study of nerve conduction |
title_short |
Article Temporal branch of facial nerve A normative study of nerve conduction |
title_full |
Article Temporal branch of facial nerve A normative study of nerve conduction |
title_fullStr |
Article Temporal branch of facial nerve A normative study of nerve conduction |
title_full_unstemmed |
Article Temporal branch of facial nerve A normative study of nerve conduction |
title_sort |
article temporal branch of facial nerve a normative study of nerve conduction |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.613.8030 http://www.scielo.br/pdf/anp/v68n4/v68n4a26.pdf |
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http://www.scielo.br/pdf/anp/v68n4/v68n4a26.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.613.8030 http://www.scielo.br/pdf/anp/v68n4/v68n4a26.pdf |
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