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In a multicenter study of patients with painful functional bowel disorders (FBD), we compared the demographic, health status, and diagnostic features of patients with FBD and developed a functional bowel disorder severity index (FBDSI) for research and clinical care. Two hundred seventy patients with FBD in the United States, England, and Canada were(More)
Our objective was to obtain national data of the estimated prevalence, sociodemographic relationships, and health impact of persons with functional gastrointestinal disorders. We surveyed a stratified probability random sample of U.S householders selected from a data base of a national market firm (National Family Opinion, Inc.). Questions were asked about(More)
CONTEXT Pelvic floor disorders (urinary incontinence, fecal incontinence, and pelvic organ prolapse) affect many women. No national prevalence estimates derived from the same population-based sample exists for multiple pelvic floor disorders in women in the United States. OBJECTIVE To provide national prevalence estimates of symptomatic pelvic floor(More)
Two hypotheses were tested: (a) lowered tolerance for balloon distention of the rectosigmoid in patients with irritable bowel syndrome is caused by a psychological tendency to exaggerate the painfulness of any aversive stimulus, and (b) contractions elicited by balloon distention are responsible for pain reports. Tolerance for stepwise distention of a(More)
PURPOSE The aims of this review are 1) to critically evaluate the literature on the efficacy of biofeedback treatment for fecal incontinence, 2) to compare different types of biofeedback, and 3) to identify patient characteristics which predict a successful outcome. METHODS The MEDLINE database was searched for articles published between 1973 and 1999(More)
BACKGROUND & AIMS Comorbid or extraintestinal symptoms occur frequently with irritable bowel syndrome and account for up to three fourths of excess health care visits. This challenges the assumption that irritable bowel is a distinct disorder. The aims of this study were to (1) assess comorbidity in 3 areas: gastrointestinal disorders, psychiatric(More)
The relation of heartbeat perception to voluntary control of heart rate (HR) and to learning of enhanced HR control during feedback was studied in three experiments. In Experiment I heartbeat perception was unrelated to voluntary control of HR but was negatively correlated with HR learning. Experiments II and III showed that heartbeat perception was(More)
T he irritable bowel syndrome (IBS) is part of the larger group of functional gastrointestinal (GI) disorders that, despite differences in location and symptom patterns, share common features with regard to their motor and sensory physiology, central nervous system (CNS) relationships, and the approach to patient care. 1 IBS is a functional bowel disorder(More)