References: Laxative
Eur J Gastroenterol Hepatol. 1995 Jun;7(6):547-52.
Anismus and biofeedback: who benefits?
Siproudhis L, Dautreme S, Ropert A, Briand H, Renet C, Beusnel C, Juguet F, Rabot AF, Bretagne JF, Gosselin M.
Services d'Explorations Fonctionnelles et de Gastroenterologie, Hopital Pontchaillou, Rennes, France.
BACKGROUND: Biofeedback is the main treatment for dyschezia in patients with anismus, but retraining may fail because of the frequent association of pelvirectal disorders with anismus. We set out to identify indices of biofeedback failure in the treatment of anismus. PATIENTS AND METHODS: From May 1990 to May 1993, 27 patients (20 women and seven men; median age 46 years) with anismus in which dyschezia was not improved by laxative agents were enrolled in a biofeedback retraining programme. All patients underwent proctologic examination, anal manometry and defecography. Anismus was defined as an increase in anal pressure during attempted defecation in conjunction with an impairment of rectal emptying as assessed using an objective test (barium paste expulsion). Associated disorders were encountered frequently. These included abnormal perineal descent (22 cases), large rectocoele (12 cases), high-grade rectal prolapse (six cases), abnormally high anal canal pressures at rest (seven cases) and abnormal rectal response to inflation (20 cases). Anismus was the sole abnormality in 12 patients when perineal descent, low-grade prolapse and abnormal rectal sensations were not taken into account. RESULTS: Biofeedback retraining did not suppress dyschezia in 13 out of 27 patients. Neither associated disorders (rectocoele, rectal prolapse, abnormal perineal descent, anal pressure and abnormalities of rectal sensation) nor a relevant past history (hysterectomy, laxative abuse, use of antidepressive agents) were encountered more frequently in these 13 patients than in the other 14. The duration of symptoms before treatment was significantly longer in the group unresponsive to biofeedback retraining (81 +/- 61 compare
Gut. 1995 Aug;37(2):270-3.
Acute diarrhoea induces rectal sensitivity in women but not men.
Houghton LA, Wych J, Whorwell PJ.
Department of Medicine, University Hospital of South Manchester.
Some patients with diarrhoea predominant irritable bowel syndrome have increased rectal sensitivity. It is uncertain, however, whether the diarrhoea is a consequence of the rectal sensitivity or if it is sensitising the rectum in some way. The aim of this study was to assess whether inducing diarrhoea in normal healthy volunteers can sensitise the rectum and therefore be a potential or partial cause of the sensitive rectum seen in some patients with diarrhoea predominant irritable bowel syndrome. The anorectal responses to balloon distension were measured in 20 healthy volunteers (aged 20-43 years, 10 female) eight hours after laxative induced diarrhoea or under control conditions. Ingestion of an isoosmotic laxative increased stool output from 1.1 (0.7-2.3) (median (range)) to 8 (5-19) bowel movements per day with no significant differences between men and women. In women rectal sensitivity was significantly increased after diarrhoea compared with control conditions (vol to induce discomfort (ml): 116 (96, 136) v 153 (137, 168), mean (95% CI); p < 0.001). This was associated with a reduction in the volume to induce internal anal sphincter relaxation (16 (12, 20) v 28 (21, 36); p < 0.005), and volume to induce sustained internal anal sphincter relaxation (70 (56, 84) v 90 (67, 113); p < 0.03), but no significant change in rectal compliance (ml/cm H2O at 100 ml) 4.8 (3.5, 6.1) v 4.1 (3.0, 5.1) or distension induced motility (motility index) 994 (341, 1647) v 735 (46, 1424). Conversely, in men diarrhoea had no significant effect on anorectal physiology and their control values were not significantly different from those of the women. In conclusion, the results of this study taken with the finding that irritable bowel syndrome is more common in women, suggests that the male or female
J Nerv Ment Dis. 1995 Sep;183(9):593-8.
Temperament, character, and personality disorder in bulimia nervosa.
Bulik CM, Sullivan PF, Joyce PR, Carter FA.
Department of Psychology, University of Canterbury, Christchurch, New Zealand.
In a sample of 76 women participating in a clinical treatment trial for bulimia nervosa, we examined the clinical differences between subjects with and without concurrent personality disorders and the ability of "self-directedness" (a character scale of Cloninger's Temperament and Character Inventory) to predict the presence of personality disorder. Sixty-three percent of the sample had at least one personality disorder diagnosis. Fifty-one percent of personality disorders were in cluster C, 41% were in cluster B, and 33% were in cluster A. The presence of personality disorder was associated with greater depressive symptoms, worse global functioning, laxative use, greater body dissatisfaction, higher harm avoidance, and lower self-directedness. As hypothesized, low self-directedness scores were associated with a markedly increased probability of a personality disorder.
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