References: Laxative
Dis Colon Rectum. 1998 Dec;41(12):1550-5; discussion 1555-6.
Intact colonic motor response to sudden awakening from sleep in patients with chronic idiopathic (slow-transit) constipation.
Bassotti G, Germani U, Fiorella S, Roselli P, Brunori P, Whitehead WE.
Department of Clinical and Experimental Medicine, University of Perugia, Italy.
PURPOSE: There are few data about the relationships between colonic motor behavior and higher brain functions, such as sleep. Previous studies were done in healthy subjects, and it is unknown whether patients with functional motor disorders of the colon behave differently. This study was designed to characterize colonic motor activity in patients with constipation, both during sleep and after sudden awakening, and to compare it with that of healthy subjects. Our working hypothesis was that patients with constipation would have an impaired response to sudden awakening. PATIENTS AND METHODS: Twelve chronically constipated women, 22 to 49 years old, were recruited for the study, and their data were compared with those obtained from 12 healthy female volunteers, 21 to 38 years old. Manometric studies were performed in the descending and sigmoid colon for 30 minutes during sleep (immediately before awakening) and 30 minutes after being awakened suddenly. A motility index was calculated before and after the stimulus. RESULTS: In both groups motility in the descending and the sigmoid colon was almost absent during sleep and significantly increased after sudden awakening. No difference in postawakening values was found between patients with constipation and controls. CONCLUSIONS: In patients with chronic constipation, the brain-gut control of some fundamental mechanisms governing colonic motility is preserved. These data suggest that the alterations of colonic motility described in chronic constipation may be caused by an intrinsic dysfunction of the viscus.
Laxative online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9860337&dopt=Abstract constipation laxative colon cleansing
Gut. 1998 Sep;43(3):388-94.
Subtypes of constipation predominant irritable bowel syndrome based on rectal perception.
Harraf F, Schmulson M, Saba L, Niazi N, Fass R, Munakata J, Diehl D, Mertz H, Naliboff B, Mayer EA.
Department of Medicine, WLA VA Medical Center, California 90073, USA.
BACKGROUND: Patients who complain of constipation can be divided into those who have lost the natural call to stool, but develop abdominal discomfort after several days without a bowel movement (no urge); and those who experience a constant sensation of incomplete evacuation (urge). AIMS: To determine whether the two groups differ in symptoms, colonic transit, and perceptual responses to controlled rectal distension. METHODS: Forty four patients with constipation were evaluated with a bowel symptom questionnaire, colonic transit (radiopaque markers), and rectal balloon distension. Stool (S) and discomfort (D) thresholds to slow ramp (40 ml/min) and rapid phasic distension (870 ml/min) were determined with an electronic distension device. Fifteen healthy controls were also studied. RESULTS: All patients had Rome positive irritable bowel syndrome (IBS); 17 were no urge and 27 urge. Mean D threshold to phasic rectal distensions was 28 (3) mm Hg in no urge, 27 (3) mm Hg in urge (NS), but higher in the control group (46 (2) mm Hg; p < 0.01). Sixty seven per cent of no urge and 69% of urge were hypersensitive for D. Slow ramp distension thresholds were higher in no urge (S: 26 (3); D: 45 (4) mm Hg) compared with urge (S: 16 (2); D: 31 (3) mm Hg; p < 0.01), or with controls (S: 15 (1); D: 30 (3); p < 0.01). CONCLUSIONS: Hyposensitivity to slow rectal distension is found in patients with IBS who complain of constipation and have lost the call to stool even though their sensitivity to phasic distension is increased.
Laxative online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9863485&dopt=Abstract constipation laxative colon cleansing
Br J Surg. 1998 Dec;85(12):1716-9.
Quality of life in patients with benign anorectal disorders.
Sailer M, Bussen D, Debus ES, Fuchs KH, Thiede A.
Department of Surgery, University School of Medicine, Wurzburg, Germany.
BACKGROUND: Benign proctological conditions are very common in Western civilization. However, to date quality of life in these patients has not been evaluated comprehensively. The aim of this study was to investigate whether the Gastrointestinal Quality of Life Index (GIQLI) is a useful instrument for measuring quality of life in these patients, and subsequently to establish baseline values for different anorectal disorders. METHODS: The questionnaire was completed by 325 consecutive patients (182 men; mean age 49 years) seen at the proctology outpatient clinic. For further analysis patients were classified into nine subgroups according to the primary diagnosis: group 1, haemorrhoids (n=96); group 2, anal fissure (n=38); group 3, fistula in ano (n=22); group 4, severe constipation (n=14); group 5, faecal incontinence (n=35); group 6, symptomatic anterior rectocele (n=12); group 7, perianal abscess (n=7); group 8, perianal thrombosis (n=7); and group 9, miscellaneous conditions (e.g. skin tags, anal papillomas, mild constipation, rectal polyps) (n=94). The GIQLI scores were compared between the subgroups. In addition the GIQLI scores of age-matched healthy controls, derived from data in the literature, were compared with the patients' scores. RESULTS: The mean GIQLI score for all patients was 113 (78.5 per cent of the maximum score of 144). Mean scores for the nine diagnostic subgroups were: group 1, 120; group 2, 104; group 3, 119; group 4, 94; group 5, 93; group 6, 112; group 7, 115; group 8, 129; and group 9, 117. Age-matched controls from a series published previously had a significantly higher GIQLI score compared with all patients (P < 0.0001). However, only the subgroups of patients with miscellaneous conditions, fissures, severe constipation and faecal incontin
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