Effects of biofeedback on obstructive defecation--reconditioning of the defecation reflex?
نویسندگان
چکیده
Twenty two patients with obstructive defecation were recruited for relaxation training by domiciliary self regulatory biofeedback. Each patient served as his or her own control for anorectal and proctographic assessments. Biofeedback training improved the obstructive symptoms of the patients and showed significant change in various parameters related to the obstructive defecation syndrome. As examined by isotope dynamic proctography: the defecation rate (% of evacuation/defecation time) was significantly increased (p < 0.05), the anorectal angles at rest and during attempted defecation were made more obtuse (p < 0.05), and the pelvic floor movements were made more dynamic on voluntary contraction of the anal sphincter (p < 0.03). The external anal sphincter electromyographic voltage recorded during defecation was significantly reduced (p < 0.0005) as was the surface anal plug electromyographic electrode voltage (p < 0.0001), which was associated with a greatly reduced anismus index (p < 0.0001). The rectal sensation was improved (p < 0.05), concomitantly. Biofeedback thus improves the defecation act in patients suffering from inappropriate contraction of the pelvic floor and sphincter musculature. Furthermore, this study has shown that biofeedback objectively influences the defecation reflex leading to an improved quality of higher control of bowel function.
منابع مشابه
MR defecography: a diagnostic test for the evaluation of pelvic floor motion in patients with dyssynergic defecation after biofeedback therapy
Background: Dyssynergic defecation is a major cause of chronic functional constipation as a common digestive complaint. We clinically evaluated the effects of biofeedback therapy on the pelvic floor motion indices through magnetic resonance (MR) defecography, quality of life and depression in patients with dyssynergic defecation. Methods : In this clinical trial study, among pa...
متن کاملOutlet obstruction constipation (anismus) managed by biofeedback.
Fifteen subjects presenting with intractable constipation due to obstructive defecation, mean (SEM) duration 8.8 (1.8) years, had the inappropriate contraction and electromyographic changes in the pelvic floor muscles and external and sphincter typical of this condition. An electromyographically derived index was used to grade its severity. A self applied biofeedback device was used to allow el...
متن کاملOutcome of biofeedback therapy in dyssynergic defecation patients with and without irritable bowel syndrome.
AIM The Rome II and III diagnostic criteria for dyssynergic defecation require the exclusion of irritable bowel syndrome (IBS). To prospectively study whether the presence of IBS affects the outcome of biofeedback therapy in dyssynergic defecation patients. METHODS Consecutive patients with dyssynergic defecation underwent biofeedback therapy. Dyssynergic defecation was diagnosed based on sym...
متن کاملMR defecography: a diagnostic test for the evaluation of pelvic floor motion in patients with dyssynergic defecation after biofeedback therapy
BACKGROUND Dyssynergic defecation is a major cause of chronic functional constipation as a common digestive complaint. We clinically evaluated the effects of biofeedback therapy on the pelvic floor motion indices through magnetic resonance (MR) defecography, quality of life and depression in patients with dyssynergic defecation. METHODS In this clinical trial study, among patients referring t...
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ورودعنوان ژورنال:
- Gut
دوره 35 2 شماره
صفحات -
تاریخ انتشار 1994