Randomized Controlled Trial of Biofeedback Therapy for Dyssynergic Defecation

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Brief Summary

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Constipation is a common disorder and current treatments are unsatisfactory. Biofeedback may help patients with constipation and dyssynergic defecation, but its efficacy is unproven and whether this is due to behavioral modification or excessive attention is unknown. Methods: In a prospective randomized trial, the investigators investigated the efficacy of Biofeedback (manometric- assisted anal relaxation, muscle coordination and simulated defecation training), with either sham feedback therapy (Sham) or standard therapy (diet, exercise, laxatives; Standard) in 77 subjects (69 women) with dyssynergic defecation. Primary outcome measures included presence of dyssynergia, balloon expulsion time, number of complete spontaneous bowel movements (CSBM), and global bowel satisfaction. Data analyzed per protocol.

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Detailed Description

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Conditions

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Dyssynergia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Interventions

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Standard treatment, sham feedback and biofeedback therapy

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

Inclusion Criteria:Patients were included if they fulfilled Rome II criteria for functional constipation, and during attempted defecation demonstrated a dyssynergic pattern of defecation, and either had prolonged difficulty with expelling a simulated stool (\> 1 minute) or prolonged delay (\> 20% marker retention) in colonic transit.

Exclusion Criteria: They were required to have no evidence of structural or metabolic diseases that could cause constipation, as assessed by colonoscopy/barium enema and routine hematological, biochemical and thyroid function tests. Patients taking drugs known to be constipating, for example opioids were either excluded or were asked to discontinue the drug prior to enrollment. Other exclusion criteria included: severe cardiac or renal disease, previous gastrointestinal, spinal or pelvic surgery except cholecystectomy, hysterectomy or appendectomy, neurologic diseases such as multiple sclerosis, stroke or spinal injury, impaired cognizance (mini-mental score \< 15), legal blindness, pregnancy, rectal prolapse, anal fissure, and alternating constipation and diarrhea.

Minimum Eligible Age

15 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No