Skin Impedance at Acupuncture Point Dingchuan in Subjects with and without Asthma

作     者：Ngai Shirley Pui-ching Jones Alice Yee-men 

作者机构：Department of Rehabilitation Sciences The Hong Kong Polytech- nic University Hong Kong 

出 版 物：《中国康复医学杂志》 (Chinese Journal of Rehabilitation Medicine)

年 卷 期：2009年第24卷第6期

页      面：481-484页

学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学] 

主　　题：哮喘 治疗方法 临床分析 诊断方法 

摘      要：Objective:Asthma can be a disabling disease and despite advances in pharmacology,the prevalence of this condition globally remains high and accounts for a significant proportion of public health care *** pharmacology is the mainstay of asthma management,drug side effects have promoted alternative therapeutic interventions,such as *** points have a lower skin impedance compared to non-acupuncture *** impairment is associated with changes in skin impedance at system-specific acupuncture *** of skin impedance changes may assist in the early diagnosis of asthma and monitoring the effectiveness of therapeutic interventions for this ***:This study compared skin impedance at acupuncture point Dingchuan(EX-B1),in 92 subjects with normal health(47 subjects,age 32.6 ±1.67yr) and those diagnosed with asthma(45 subjects,age 42.4 ±1.80 yr).Skin impedance was measured using a 2-electrode impedance meter bilaterally at EX-B1,0.5 cun lateral to the lower border of 7th cervical ***:The study showed that skin impedance was significantly higher at acupuncture point EX-B1 in subjects with asthma(29.4 ± 21 kΩ) compared to subjects with normal health(13.8±7.9 kΩ)(P=0.013).Skin impedance was negatively correlated to forced expiratory volume in 1 second(FEV1,r=-0.59,P=0.012 in females;and r=-0.68,P=0.015 in males).A receiver operator characteristic(ROC) curve revealed an optimum cut-off point of 35 kΩ for male and 10 kΩ for female ***:We conclude that EX-B1 skin impedance is higher in patients with asthma and skin impedance might be a possible adjunctive parameter for assisting diagnosis and monitoring asthmatic status.