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KMID : 0361419950190010113
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Journal of Korean Academy of Rehabilitation Medicine
1995 Volume.19 No. 1 p.113 ~ p.118
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Hypoglossal NerveConduction Study-Standardization in Normal Subjects and a Case Report of the Hypoglossal Nerve Lesion
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Abstract
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Injury of the hypoglossal nerve may result from direct trauma, compression by tumor or abscess and complication of the radiation therapy and head and neck surgery such as carotid endarterectomy. But routine conduction method for the hypoglossal
nerve is
not established. The hypoglossal nerve was studied in 25 normal adult subjects with submandibular surface stimulation and concentric needle recording in the tongue muscle through intraoral and submandibular approach. The onset latency of 50
hypoglossal
nerves was 2.34±0.26 msec and 1.36±0.14 msec by intraoral and submandibular approach respectively. The peak to peak amplitude was 9.6±4.5mV in intraoral approach and 29.7±8.7 mV in submandibular approach. This nerve conduction study is
reliable
and
simple method and should be helpful in detection of the degree and progression of the hypoglossal nerve lesion.
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KEYWORD
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