References: Laxative
J Pediatr Surg. 1996 Sep;31(9):1236-40.
Anterior sagittal anorectoplasty for anorectal malformations and perineal trauma in the female child.
Wakhlu A, Pandey A, Prasad A, Kureel SN, Tandon RK, Wakhlu AK.
Department of Pediatric Surgery, King George's Medical College, Lucknow, UP, India.
Vestibular fistula and perineal ectopic anus are the most common anorectal malformations in female children. Anterior saggital anorectoplasty (ASARP) was used to treat 416 patients with these anomalies, as well as cases of perineal canal and third-degree perineal tear, during a 20 year period. Preliminary colostomy was performed in only four patients, who had a perineal tear. For ASARP, a midline incision was made and the rectum was separated from the vagina and placed in the center of the sphincteric muscle complex. The perineal body was reconstructed, and normal appearance of the perineum was achieved. Six patients had complications postoperatively (4 had secondary hemorrhage, 2 had wound infection). One patient with hemorrhage and one with infection required laying open of the wound and revision surgery after 12 weeks. Both recovered well. Of the 416 patients, 397 returned for follow-up 12 weeks after the surgery. Of these, 390 had a normal-looking perineum and normal defecation. Of the remaining seven patients, three had retraction of the rectum, one had recurrence of the fistula, and another had acquired perineal canal. These five children required revision ASARP and recovered successfully. The other two patients had mucosal prolapse, which reduced spontaneously. Three hundred twenty-six children of the 416 patients have had follow-up beyond the age of 3 years. Of these, 291 had normal bowel habits without the use of laxatives. Of the other 35, four had fecal impaction of unknown etiology, which was managed conservatively, 6 had anal stenosis (four underwent posterior Barrow's flap interposition and two responded to dilatation), and 25 had a posterior ledge that caused constipation and required cutback
J Pediatr Gastroenterol Nutr. 1996 Oct;23(3):241-51.
Colonic transit time in constipated children: does pediatric slow-transit constipation exist?
Benninga MA, Buller HA, Tytgat GN, Akkermans LM, Bossuyt PM, Taminiau JA.
Department of Pediatrics, University Hospital, Utrecht.
In adults, slow-transit constipation is a well-established form of constipation with abdominal pain and an empty rectum on examination. Marker studies in these patients, mainly women, show a markedly slowed transit time in all colonic segments. No studies in constipated children are available that assess the existence of slow-transit constipation. In a prospective study, a total of 94 referred constipated pediatric patients, 63 boys and 31 girls (median age, 8.0 years), underwent colonic-transit-time measurements using radioopaque markers to evaluate the pattern of transit. In addition, orocecal-transit-time measurements using the hydrogen breath (lactulose) test, anorectal manometry, and behavior studies using the Child Behavior Checklist were performed in all children. Based on the upper limit (mean + 2 SD) of total colonic transit time (CTT) in constipated children, we arbitrarily separated patients into two groups. Children with CTTs > 100 h were said to have pediatric slow-transit constipation (PSTC), while patients with CTTs < 100 h were said to have normal- or delayed-transit constipation (NDTC). In 94 constipated children, PSTC was found in 24 children; in 70 children, total CTT was < 100 h (NDTC). Total and segmental CTTs were significantly prolonged in PSTC (median, 189 h; range, 104.4-384) versus NDTC (median, 46.8 h; range, 3.6-99.4) hours. No significant differences were found in orocecal transit time. Significant clinical differences in children with PSTC versus those with NDTC existed regarding nighttime soiling (71 vs. 11%); daytime soiling episodes (14 vs. 7 each week, median), and nighttime soiling episodes (5 vs. 0 each week, median); absent urge to defecate (33 vs. 14%); and palpable abdominal (71 vs. 3
Aliment Pharmacol Ther. 1996 Oct;10(5):787-93.
Mebeverine alters small bowel motility in irritable bowel syndrome.
Evans PR, Bak YT, Kellow JE.
Department of Medicine, Royal North Shore Hospital, Sydney, Australia.
BACKGROUND AND AIM: Despite its widespread use in irritable bowel syndrome (IBS), limited clinical data exist on the effects of mebeverine hydrochloride on gastrointestinal motility. Human motor activity in the small bowel is more reproducible than that in the large bowel; therefore the aim of this study was to determine in the small bowel the effects of oral mebeverine in both IBS patients and in healthy controls. METHODS: Twelve IBS patients (11 females/1 male, 46 +/- 13 years old)-predominant constipation (IBS-C, n = 6) and predominant diarrhoea (IBS-D, n = 6)-and six healthy controls, underwent continuous 48 h ambulant recording of small bowel motor activity. One low energy (400 kcal) and one high energy (800 kcal) standard meal were administered in each consecutive 24-h period. Subjects received, in blinded fashion, placebo tablets in the first 24 h then mebeverine 135 mg q.d.s. in the second 24 h. RESULTS: Mebeverine had no effect on parameters of small bowel motility in controls. In contrast, in both IBS-C (P = 0.01) and IBS-D (P < 0.05) patients, phase 2 motility index was increased during mebeverine administration. Also, after mebeverine the proportion of the migrating motor complex cycle occupied by phase 2 was reduced in IBS-D (P = 0.01), while phase 2 burst frequency was reduced in IBS-C (P < 0.05). For phase 3 motor activity in IBS-C patients, the propagation velocity was decreased (P < 0.01), and the duration increased (P < 0.01). CONCLUSIONS: These findings suggest that mebeverine, in the initial dosing period, has a normalizing effect in the small bowel in IBS, enhancing contractile activity in a similar fashion to 'prokinetic' agents, as well as producing alterations in motor activity consistent with an 'antispasmodic' effect.
Laxative online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=8899088&dopt=Abstract constipation laxative [PubMed -
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