Objective: To evaluate the treatment outcomes of sacral nerve stimulation(SNS) for functional anorectal pain(FAP).
Methods: A total of 32 patients of FAP received SNS treatment through S3 from March 2011 to December 2011. Visual analogue scale(VAS), anal pressure measure, and health survey(SF-36) before and after treatment were used to evaluate the outcomes.
Results: After treatment, VAS score was significantly decreased, rectal anal reflex threshold volume elevated, and anal maximum contraction pressure (AMCP) and anal rest pressure significantly decreased compared with those before treatment(all P<0.01). Except for general health, the remaining dimension score of the SF-36 increased significantly after treatment, and the differences were statistically significant(P<0.05 or P<0.01). After SNS treatment, 19 cases were cured, 12 improved, 1 was refractory. The total effective rate was 96.9% during 3 months after treatment.
Conclusion: SNS is a safe and effective alternative for FAP and can alleviate the pain symptom and improve the quality of life.
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