老年重症肌无力患者不同肌肉重复电刺激的敏感性分析  

Sensitivity of repetitive nerve stimulation in different muscles in elderly patients with myasthenia gravis

作　　者：徐亦舟 魏文石[1] 

机构地区：[1]复旦大学附属华东医院神经内科,上海市200040

出　　处：《老年医学与保健》2016年第3期-,共2页Geriatrics & Health Care

摘　　要：目的分析不同肌肉重复电刺激(RNS)在老年重症肌无力(MG)患者的诊断价值。方法选取重复电刺激阳性的重症肌无力老年患者10例作为观察组,并设10例非老年患者作为对照组。所有患者进行重复电刺激检测,比较两组不同神经支配肌阳性率及衰减范围的差异。结果老年组额肌的低频衰减阳性率为37.50%(3/8),非老年组为37.50%(3/8),两组差异无统计学意义(P>0.05);老年组眼轮匝肌的低频衰减阳性率为33.33%(2/6),非老年组为66.67%(6/9),两组差异有统计学意义(P<0.05);老年组拇短展肌的低频衰减阳性率为60.00%(6/10),非老年组为50.00%(4/8),两组差异有统计学意义(P<0.05)。结论不同年龄段的重症肌无力患者重复电刺激检出结果具有不同的特点,不同检测方案的选择具有较大差异。Objective To analyze the diagnostic value of different muscle repetitive nerve stimulation(RNS) in the elderly patients with myasthenia gravis(MG).Methods A total of 20 cases(elderly group and non-elderly group,10 cases each group) of clinically diagnosed with myasthenia gravis were underwent RNS test,and the results were analyzed.The positive rate and attenuation range of different nerves in the elderly group and non-elderly group were compared.Results In elderly group,positive rates in frontalis,orbicularis oculi and abductor pollicis brevis were 37.50%,33.33%and60.00%,respectively.In non-elderly group,positive rate in frontalis,orbicularis oculi and abductor pollicis brevis were37.50%,66.67%and 50.00%,respectively.The elderly group and non elderly group had significant differences in positive rates of orbicularis oculi and abductor pollicis brevis,respectively(P<0.05).Conclusions The detection results of repetitive nerve stimulation in patients with various age groups have different characteristics,and the selection of different detection schemes have great differences.

关 键 词：重症肌无力 重复电刺激 拇短展肌 

分 类 号：R746.1[医药卫生—神经病学与精神病学]