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  • Title: Biofeedback therapy for fecal incontinence after surgery for anorectal malformations: preliminary results.
    Author: Iwai N, Nagashima M, Shimotake T, Iwata G.
    Journal: J Pediatr Surg; 1993 Jun; 28(6):863-6. PubMed ID: 8331522.
    Abstract:
    Eight patients with fecal incontinence after surgery for anorectal malformations received one to four sessions of biofeedback therapy. The physiologic status of the anorectum before and after biofeedback therapy was investigated by anorectal manometry and electromyography of the external sphincter. The effectiveness of biofeedback treatment and the indications for its use in patients with fecal incontinence were investigated. Three of the four patients responded well to biofeedback therapy following three or four training sessions. However, in the other five patients who had only one or two sessions, a good response to the therapy was not obtained. Anorectal manometry and electromyography recordings of the external sphincter showed that biofeedback therapy improved voluntary sphincter function. The three good responders had an adequate and resting pressure both before and after biofeedback therapy and had good electrical activity of the external sphincter after therapy. In the presence of adequate resting and pressure, biofeedback therapy should be attempted for the treatment of fecal incontinence after correction of anorectal malformations before resorting to further surgical intervention. However, biofeedback therapy may not be suitable if the sphincters are markedly hypoplastic, or do not surround the anal canal after an inappropriate pull-through operation.
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