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Values of blink reflex and electroneurography in diagnosis of facial paralysis

Neural Regeneration Research 2007年第12期2卷 727-731页

作者： Ying Li Fanrong Liang Shuguang Yu Zhong Zheng Acupuncture and Tuina College Chengdu University of Traditional Chinese Medicine Chengdu 610075 Sichuan Province China Affifiated Hospital Chengdu University of Traditional Chinese Medicine Chengdu 610075 Sichuan Province China

BACKGROUND： The electrophysiological test was mainly achieved by the reaction of nerve fiber to electrical stimulus, usually expressed by the amplitude and latency. Blink reflex and electroneurography （ENOG） are widely applied in facial paralysis, the amplitude would step down, and the latency would prolong when the facial nerve was injured. OBJECTIVE： To compare the value of blink reflex and ENOG in the diagnosis of facial paralysis （Bell＇s palsy）. DESIGN： A controlled trial. SETTINGS： Affiliated Hospital, Chengdu University of Traditional Chinese Medicine; West China Hospital of Sichuan University; Mianyang Hospital of Traditional Chinese Medicine; Sichuan People＇s Hospital. PARTICIPANTS： The patients who had finished the tests of blink reflex （n =207） and ENOG （n =205） were selected from the Affiliated Hospital, Chengdu University of Traditional Chinese Medicine; West China Hospital of Sichuan University; Mianyang Hospital of Traditional Chinese Medicine; Sichuan People＇s Hospital from September 2001 to July 2003. After treatment for 4 weeks, the patients finished tests of blink reflex （n =207） and ENOG （n =205） were randomly divided into primary treatment group （n =68, 69）, acupuncture group （n =71, 66） and comprehensive treatment group （n =68, 70）, respectively. Approval was obtained from the ethic committee of hospital. METHODS： Patients in the primary treatment group and acupuncture group were treated with western medicine, acupuncture and moxibustion alone respectively, and those in the comprehensive treatment group were treated with acupuncture and moxibustion based on western medicine. The whole period of treatment was 4 weeks. The tests of blink reflex and ENOG were carried out using Japanese light and electricity MEB-2200 electromyogram/induced potential instrument for once before and after treatment respectively. The normal value of the latency period of wave RI was within 13 ms, and the difference was 1 - 1.2 ms between the left and right sid

关键词： facial paralysis blink reflex electroneurography

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Clinical application of facial electroneurography:analysis in 226 cases

引用

Journal of Medical Colleges of PLA(China) 1994年第3期9卷 216-218,223页

作者：郭梦和王锦玲李志纯

Facial electroneurographies(ENoG) of 46 normal persons and 180 patients with facial nerve diseases were analyzed. Normal persons showed a peak amplitude of ENoG of 1.65±0.63 mV,a peak latency of 5. 12±0.58 ms and a bilateral amplitude ratio of 0.80±*** 134 cases of peripheral facial paralysis,however,the amplitude ratio was less than 0.1 in 29.1% and less than 0. 3 in 73.13%.In 46 cases of facial hemispasm,the amplitude ratio was less than 0.7 in 71.73%.among them 45.65% showed an amplitude ratio of 0.1 to 0.3,indicating that in some cases facial hemispasm might have originated from light or masked facial paralysis. The results showed that ENoG was quite effective in the quantitative analysis of, prescribing treatment to and determining prognosis of paralysis of facial nerve in its early stage.

关键词： facial nerve electroneurography action potentials

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