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Journal of the Korean Academy of Rehabilitation Medicine 1995;19(1):16.
Hypoglossal Nerve Conduction Study(Standardization in Normal Subjects and a Case Report of the Hypoglossal Nerve Lesion)
Min Kyun Sohn, M.D., , Jung Uk Mo, M.D.,
Department of Rehabilitation Medicine, Chungnam National University, College of Medicine
설하신경 전도검사(정상성인에서의 표준화 및 설하신경 병변의 증례보고)
손민균, 모정욱
충남대학교 의과대학 재활의학교실

Injury of the hypoglossal nerve may result from direct trauma, compression by tumor of 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 subject 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 msce by intraoral and submandibular approach respectively. The peak to peak amplitude was 9.6 ⁑ 4.5mV in intraoral approach and 29.7 ⁑ 8.7mV 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.

Key Words: Hypoglossal nerve, Genioglossus, Electrophysiologic study


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