正中神经掌支肌电图检测在腕管综合征诊断中的应用

doi:10.13481/j.1671-587x.20150434

Journal of Jilin University Medicine Edition ›› 2015, Vol. 41 ›› Issue (04): 846-849.doi: 10.13481/j.1671-587x.20150434

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Application of electromyogram of palmar cutaneous brahch of median nerve in dignosis of carpal tunnel syndrome

PANG Ziqian¹, WANG Keren², YE Yuqin³, ZHANG Xin¹, LIU Mingjun¹, HUANG Qingdao⁴

1. Department of Acupuncture and Massage, Changchun University of Traditional Chinese Medicine, Changchun 130117, China;
2. Department of Breast Surgery, China-Japan Union Hospital, Jilin University, Changchun 130033, China;
3. Department of Neurology, First Hospital, Jilin University, Changchun 130021, China;
4. Department of Applied Mathematics, College of Mathematics, Jilin University, Changchun 130012, China

Received:2015-01-12 Published:2015-08-01

Abstract

Abstract:

Objective To analyze the electrophysiological changes of palmar cutaneous brahch of median nerve (PCBm) in the patients with carpal tunnel syndrome(CTS) by detecting the electromyogram of PCBm and routine nerve conduction studies (NCS) of the CTS patients. Methods 50 patients who were diagnosed as CTS according to clinical features and electromyogram were used as CTS group and 30 cases of healthy persons were used as healthy control group.NCS were performed in all subjects.The complex muscle action potentials (CMAP) amplitude (Amp),distal latencies (Lat),motor conductive velocities (MCV),sensory nerve action potentials (SNAP) Amp,distal latencies (Lat)and sensory conductive velocities (SCV) were recorded,and the electromyogram of PCBm was performed. Results Compared with healthy control group, abnormal NCS of median nerve was found in all patients with CTS (100%),and the most common abnormal features were prolonged CMAP distal Lat and digits 3 Lat(P<0.01),and lower SCV of digits 3(P<0.01).29 (45.3%) patients had PCBm involvement,mainly exhibited as prolonged Lat(P<0.01), and lower SCV(P<0.01). Conclusion PCBm injury is commonly seen in the patients CTS,NCS of PCBm should be performed in the patients with CTS,and it should be considered as a definition that the compression of median nerve is beyond the carpal tunnel.

Key words: carpal tunnel syndrome, median nerve, palmar cutaneous nerve, nerve conduction studies

CLC Number:

R741.044

PANG Ziqian, WANG Keren, YE Yuqin, ZHANG Xin, LIU Mingjun, HUANG Qingdao. Application of electromyogram of palmar cutaneous brahch of median nerve in dignosis of carpal tunnel syndrome[J].Journal of Jilin University Medicine Edition, 2015, 41(04): 846-849.

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Application of electromyogram of palmar cutaneous brahch of median nerve in dignosis of carpal tunnel syndrome

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