腕管综合征患者拇指与中指正中神经感觉神经潜伏期及传导速度比较

Comparison of median nerve distal sensory latency and sensory nerve conduction velocity between thumb and middle finger in patients with carpal tunnel syndrome

目的:比较腕管综合征(CTS)患者正中神经远端拇指-腕点与中指-腕点感觉神经潜伏期(DSL)延长程度及传导速度(SCV)下降程度。方法:选取2022年9月—2023年4月在南京市江宁医院就诊的CTS患者42例,纳入观察组;选取同期健康体检者或无周围神经病史的其他意愿受检者31名,纳入对照组。检查并记录CTS患者患侧手及对照组任一侧手正中神经拇指-腕点、中指-腕点DSL、SCV结果,计算两组患者拇指-腕点、中指-腕点DSL、SCV的差值(ΔDSL、ΔSCV),比较两组间的差异。结果:观察组拇指-腕点DSL长于对照组(P<0.05);但两组中指-腕点DSL和两指间ΔDSL比较,差异无统计学意义(P>0.05);观察组拇指-腕点、中指-腕点SCV均慢于对照组,且两组ΔSCV差异有统计学意义(P<0.05)。结论:在CTS患者中检测正中神经远端拇指DSL及SCV较中指更敏感。

Objective To compare the thumb-wrist and middle-finger-wrist distal sensory latency(DSL)and sensory nerve conduction velocity(SCV)of the median nerve in patients with carpal tunnel syndrome(CTS).Methods A total of 42 patients with CTS treated in Nanjing Jiangning Hospital from September 2022 to April 2023 were retrospectively selected and included in the observation group,and a total of 31 healthy subjects or other willing subjects without a history of peripheral nerve disease were retrospectively selected and included in control group.Examined diseased hand of observation group patients and any hand of the control group,then recorded thumb-wrist and middle finger-wrist DSL and SCV of every examined hands,calculated difference value of recorded DSL and SCV(ΔDSL,ΔSCV).Analyzed the statistical differences between the two groups.Results The thumb-wrist DSL in observation group was significantly longer than that in control group(P<0.05),but there was no significant difference in middle finger-wrist DSL andΔDSL(P>0.05).The SCV of thumb-wrist and middle finger-wrist in observation group were significantly slower than that in control group,andΔSCV was also statistically different from control group(P<0.05).Conclusions In patients with CTS,the sensory conduction latency and conduction velocity of median thumb nerve are more sensitive than those of middle finger.