摘要
Abstract
Objective To observe the clinical efficacy of electrical stimulation in the treatment of patients with anal sphincter relaxation.Methods A total of 38 patients diagnosed with anal sphincter relaxation in the Outpatient Department of Coloproctology of our hospital from August 2024 to February 2025 were enrolled(organic diseases were excluded by digital rectal examination,electronic proctoscopy or colonoscopy).A pelvic floor surface electromyography evaluation system was used to assess the overall score of pelvic floor muscles,muscle strength,stability,coordination of type Ⅰ and type Ⅱ muscle fibers,and abdominal muscle involve-ment through the following procedures:pre-baseline phase,rapid contraction phase of type Ⅱ muscle fibers,10-s sustained contraction and 60-s endurance contraction of type Ⅰ muscle fibers,and post-baseline phase.Patients were instructed to recognize normal and abnormal electromyographic signals with the help of on-screen images to perform proper pelvic floor muscle training,so as to achieve accurate contraction of relaxed pelvic floor muscles without screen assistance and improve therapeutic efficacy.Results When comparing the pre-treatment situation with that after 1 course of treatment and 2 courses of treatment,there were no significant dif-ferences between the pre-resting phase and the post-resting phase of electromyography,all within the normal range.In the rapid contraction phase,when comparing the situation after 2 courses of treatment with that after 1 course of treatment,the maximum value increased significantly,and the rise time and recovery time gradually decreased.In the sustained contraction and endurance contraction phases,the mean value increased signifi-cantly,and the rise time of the contraction speed,recovery time,and the 10-second post-to-pre ratio gradually decreased.The total effective rate after treatment was 81.58%.After 2 courses of treatment,the total score of patients increased significantly,and the participation degree of abdominal muscles decreased significantly.Conclusion Biofeedback therapy is a safe,effective and highly practical treatment method for patients with anal sphincter relaxation.In clinical practice,appropriate treatment plans and parameters can be selected accord-ing to the actual conditions of patients to achieve good treatment effects.关键词
肛门括约肌松弛/电刺激/生物反馈/表面肌电/疗效观察Key words
Anal sphincter relaxation/Electrical stimulation/Biofeedback therapy/Surface electromyogra-phy/Clinical efficacy
