Gerawarapong Chinapat
J Med Assoc Thai. 2014 Sep;97(9):969-76.
Compare the sensitivities ofmedian-thumb sensory distal latency (M-T sensory DL) with other standard nerve conduction studies (NCSs) in patients with carpal tunnel syndrome (CTS).
Eighty-eight participants'hands, obtained retrospectively between June 2012 and August 2013, were included and divided into two groups, 48 CTS hands and 40 control hands, respectively All clinical data, demographic characteristics, and electrodiagnostic (EDX) findings of each test were compared and analyzed
M-Tsensory DL had the highest sensitivity. It was 81.3% equal to wrist-palm sensory nerve conduction velocity (W-P sensory NCV) and median-radial sensory distal latency diference (M-RSLD). Specificity of the M-Tsensory DL was 95.0%, less than wrist-palm motor nerve conduction velocity (W-P motor NCV) (100.0%), wrist sensory DL (100.0%), and median-thumb sensory nerve conduction velocity (M-T sensory NCV) (100.0%), respectively. Furthermore, using a combination of the EDX tests, both M-T sensory and median sensory NCSs performed equally with higher diagnostic predictive values than the median motor NCS.
The M-Tsensory DL is a valuable NCSfor the diagnosis of CTS. Overall, it performs with the highest sensitivity and accuracy when used in a single EDX test or combined with M-Tsensory NCV
比较腕管综合征（CTS）患者中拇指感觉远端潜伏期（M-T感觉DL）与其他标准神经传导研究（NCS）的敏感性。
回顾性纳入2012年6月至2013年8月间获取的88名参与者的手部，分为两组，分别为48只CTS手和40只对照手。比较并分析每项检查的所有临床数据、人口统计学特征和电诊断（EDX）结果。
M-T感觉DL的敏感性最高。其为81.3%，与腕-掌感觉神经传导速度（W-P感觉NCV）和正中-桡侧感觉远端潜伏期差值（M-RSLD）相当。M-T感觉DL的特异性为95.0%，分别低于腕-掌运动神经传导速度（W-P运动NCV）（100.0%）、腕感觉DL（100.0%）和正中-拇指感觉神经传导速度（M-T感觉NCV）（100.0%）。此外，联合使用EDX检查时，M-T感觉和正中感觉NCS的表现相当，诊断预测值高于正中运动NCS。
M-T感觉DL是诊断CTS的一项有价值的NCS。总体而言，在单次EDX检查中或与M-T感觉NCV联合使用时，它具有最高的敏感性和准确性。
