White J C, Hansen S R, Johnson R K
Department of Neurology, Stanford University School of Medicine, CA.
Muscle Nerve. 1988 Nov;11(11):1177-82. doi: 10.1002/mus.880111112.
One hundred and twenty-two patients were selected on the basis of symptoms of finger numbness and tingling thought to suggest carpal tunnel syndrome. The severity of the symptoms was graded and the patients were studied with seven established EMG procedures, motor inching to the abductor pollicis brevis and second lumbrical muscles, and sensory inching. Symptom severity was compared with the degree of nerve conduction abnormality and results from symptomatic hands with those abnormal results from patient's asymptomatic hands. Motor inching to the abductor pollicis brevis muscle was the most sensitive study and, when combined with sensory inching, gave a sensitivity of 97-100% (depending on symptom severity). Motor inching to the second lumbrical muscle alone detected the lesion site in several severely involved nerves. Guidelines are suggested with which one can estimate the likelihood that a patient's finger sensory symptoms are on the basis of carpal tunnel syndrome.
根据疑似腕管综合征的手指麻木和刺痛症状，选取了122例患者。对症状的严重程度进行分级，并采用七种既定的肌电图检查程序对患者进行研究，包括对拇短展肌和第二蚓状肌进行运动性微移检查以及感觉性微移检查。将症状严重程度与神经传导异常程度进行比较，并将有症状手部的结果与患者无症状手部的异常结果进行比较。对拇短展肌进行运动性微移检查是最敏感的检查方法，与感觉性微移检查相结合时，敏感性为97% - 100%（取决于症状严重程度）。单独对第二蚓状肌进行运动性微移检查可在几条严重受累神经中检测到病变部位。本文提出了一些指导原则，据此可以估计患者手指感觉症状基于腕管综合征的可能性。
