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PubMed2005

Quality of life, functional outcome, and complications of coloplasty pouch after low anterior resection.

PURPOSE: The colonic J-pouch has been used to improve bowel function in patients undergoing low colorectal or coloanal anastomosis. However, a narrow pelvis, difficulties in reach, a long anal canal with prominent sphincters, or a fatty mesentery may turn this technique into a technically challenging procedure in certain patients. In these circumstances, "coloplasty" offers an alternative to a straight anastomosis. The purpose of this study was to compare the quality of life, functional outcome, and complications between patients undergoing coloplasty, colonic J-pouch, or straight anastomosis. METHODS: Altogether, 162 patients who underwent coloanal or low colorectal anastomosis between 1998 and 2001 were studied. Data collected included demographics, length of follow-up, technique and type of anastomosis, complications, quality of life, and functional outcome. Results were analyzed according to use of a coloplasty (n = 69), colonic J-pouch (n = 43), or straight anastomosis (n = 50). The choice of the technique was based on the surgeon's preference. Usually coloplasty or straight anastomosis was favored in male patients with a narrow pelvis or when a handsewn anastomosis was used. RESULTS: Quality of life assessment with the short form-36 questionnaire revealed better scores in coloplasty and colonic J-pouch groups. The coloplasty (1.0 +/- 1.7) and colonic J-pouch (1.0 +/- 1.2) groups had fewer night bowel movements than the straight anastomosis group (1.5 +/- 2.0) (P < 0.05). The coloplasty group also had fewer bowel movements per day than the straight anastomosis group (3.8 +/- 2.9 vs. 4.8 +/- 3.6; P < 0.05); also, less clustering and less antidiarrheal medication use were observed than in the straight anastomosis group. Colonic J-pouch patients with handsewn anastomosis had a higher anastomotic leak rate (44 percent) than the patients in the coloplasty with handsewn anastomosis group (3.6 percent). CONCLUSIONS: Coloplasty seems to be a safe, effective technique for improving the outcome of low colorectal or coloanal anastomosis. It is especially applicable when a colonic J-pouch anastomosis is technically difficult.

Adult↗
PubMed2005

Pouch-vaginal fistula after ileal pouch-anal anastomosis: treatment and outcomes.

PURPOSE: Pouch-vaginal fistula is an uncommon but serious complication after ileal pouch anal anastomosis. The management of pouch-vaginal fistulas is challenging and a number of treatment options exist. The purpose of this study was to examine the outcomes after various procedures for pouch-vaginal fistula performed at our institution. METHODS: Patients who were treated for pouch-vaginal fistula at Mount Sinai Hospital were identified from a prospectively maintained database. Demographic, disease history, treatment, and outcomes data were obtained. Treatment success was defined as no recurrence of the fistula with a functioning pouch and no ileostomy. RESULTS: Since November 1982, 24 of 619 (3.9 percent) women who had primary ileal pouch-anal anastomosis performed at Mount Sinai Hospital developed a pouch-vaginal fistula. Five women had ileal pouch-anal anastomosis performed at another institution and were referred for management of their pouch-vaginal fistula. Local and/or combined abdominoperineal repairs were performed in 22 of 29 patients. Combined abdominoperineal repairs were associated with a higher success rate than that of local perineal repairs (52.9 vs. 7.9 percent, respectively, at 10 years after repair; p = 0.035). Overall, 50 percent (11/22) of patients who underwent surgical repair of a pouch-vaginal fistula had a successful result with a functioning pouch and no recurrence of the fistula, and 21 percent (6/29) of patients required pouch excision. CONCLUSIONS: The management of pouch-vaginal fistula after ileal pouch-anal anastomosis is associated with a high recurrence rate. Combined abdominoperineal repair appears to offer better results than those of local procedures.

Abdomen↗
PubMed2005

Mental disorder and psychologic distress in patients with ulcerative colitis after ileal pouch-anal anastomosis.

PURPOSE: The aim of this study was to determine if ileal pouch-anal anastomosis in patients with ulcerative colitis is a psychologic burden for patients, the frequency of mental disorders, the amount of psychologic distress, and their possible disease-related determinants. These factors were studied in patients with ulcerative colitis after ileal pouch anal anastomosis and were compared with ulcerative colitis patients without ileal pouch-anal anastomosis and the general German population. METHODS: A total of 37 patients with ulcerative colitis after ileal pouch-anal anastomosis (age 46.8 +/- 11.8 years; 35 percent female) and 62 patients with ulcerative colitis without ileal pouch-anal anastomosis (age 44.4 +/- 13.9 years; 37 percent female) completed the following questionnaires: medical and sociodemographic questionnaire of the German Competence Network "Inflammatory Bowel Diseases" and the German version of the Hospital Anxiety and Depression Scale. Disease activity was measured in patients with ileal pouch-anal anastomosis by the Pouch Disease Activity Index and in patients without ileal pouch-anal anastomosis by the German Inflammatory Bowel Disease Activity Index. Psychologic distress was assessed by the subscale scores of the Hospital Anxiety and Depression Scale. A probable mental disorder was identified if a patient scored 11 or higher in at least one subscale of the Hospital Anxiety and Depression Scale. RESULTS: The frequency of a probable psychiatric disorder in patients with ileal pouch-anal anastomosis (16 percent) and without ileal pouch-anal anastomosis (23 percent) did not differ from that in the general German population (17 percent). Ulcerative colitis patients with or without ileal pouch-anal anastomosis did not differ in the amount of psychologic distress. Ileal pouch-anal anastomosis patients had higher levels of anxiety than the general population (P < 0.01). Regression models of disease-related factors predicting mental disorder and psychologic distress showed no significant results. CONCLUSIONS: Ileal pouch-anal anastomosis neither increases nor decreases the frequency of mental disorders or the amount of psychologic distress in ulcerative colitis patients.

Adult↗
PubMed2005

Long-term outcome of surgically treated Crohn's colitis: a prospective study.

PURPOSE: Although bowel-sparing techniques have been published for treatment of Crohn's disease of the small bowel because of its relentless nature, extent of resection in Crohn's colitis is still a topic of debate. This study was designed to prospectively evaluate the long-term outcomes of patients with isolated Crohn's colitis to identify patients that may benefit from initial more aggressive resection. METHODS: We identified 179 patients with Crohn's disease operated on for primary colonic disease. They were divided into segmental colectomy, total abdominal colectomy, and total proctocolectomy groups, based on their initial operation. They were further characterized by extent and location of colonic involvement. Long-term outcome variables evaluated included colonic and small-bowel surgical recurrences, postoperative complications and long-term sequelae, long-term need for medical therapy, and need for permanent fecal diversion. RESULTS: Fifty-five patients underwent segmental colectomy, 49 total abdominal colectomy, and 75 total proctocolectomy. Patients with diffuse colonic involvement were significantly less likely to undergo segmental colectomy than total abdominal colectomy (P < 0.0001) or total proctocolectomy (P < 0.0001). Patients with distal involvement or pancolitis were significantly less likely to undergo segmental colectomy than total abdominal colectomy (P < 0.0001) or total proctocolectomy (P < 0.0001). Overall there were 31 patients (24.4 percent) with surgical Crohn's recurrences during follow-up: 19 (38.8 percent) in the segmental colectomy, 8 (22.9 percent) in the total abdominal colectomy, and 4 (9.3 percent) in the total proctocolectomy group. There was a significant difference in time to recurrence between the three groups by log-rank test (P = 0.017). Segmental colectomy patients had a significantly shorter time to first recurrence than total proctocolectomy patients (P = 0.014). After adjusting for extent of disease, the segmental colectomy group had a significantly greater risk of surgical recurrence than the total proctocolectomy group (P = 0.006). Total proctocolectomy patients were significantly less likely to be still taking medications one year after the index operation than total abdominal colectomy patients (P = 0.003) and segmental colectomy patients (P = 0.0003). During follow-up, patients with isolated distal disease were significantly more likely to require a permanent stoma than patients with isolated proximal disease (P = 0.004). CONCLUSIONS: A more aggressive approach should be considered in patients with diffuse and distal Crohn's colitis. Total proctocolectomy in the properly selected patients is associated with low morbidity, lower risk of recurrence, and longer time to recurrence. Patients after total proctocolectomy are more likely to be weaned off all Crohn's-related medications. Long-term rate of permanent fecal diversion is significantly higher in patients with distal disease.

Adult↗
PubMed2002

Small colonic J-pouch improves colonic retention of liquids--randomized, controlled trial with scintigraphy.

PURPOSE: A small 6-cm colonic J-pouch improves stool frequency and continence, without stool evacuation problems. However, the reservoir function is not improved on physiologic studies. Hence, a scintigraphy technique was devised to study the transit of solid and liquid colonic contents in these patients. METHODS: Patients were randomly assigned to straight or colonic J-pouch anal anastomoses after ultralow anterior resection. At 1 year after surgery, they were studied by bowel questionnaire, anorectal manometry, and technetium TC 99m tin-colloid liquid test meal/I-131 microcapsule scintigraphy. In the latter, technetium TC 99m tin-colloid was ingested orally to image the colonic liquids. I-131 microcapsules taken simultaneously imaged the solid stools. After ingestion of the radioisotopes, imaging was performed at intervals of 7 to 8, 24, and 56 hours later. Two independent observers noted the presence of technetium TC 99m tin-colloid liquid and I-131 microcapsules in various areas of interest drawn over the colon. RESULTS: There were six patients (5 males, mean age, 61.5 (SE mean, 1.9) years) in the straight, and six patients (5 males, mean age, 63.2 (4.5) years) in the colonic J-pouch group. Stool frequency was more in the straight group (4.8 (0.4) vs. 3 (0.2) stools/day; P <.001). Continence, evacuation problems, and anorectal physiologic findings were not different. Technetium TC 99m tin-colloid (imaging liquids) transited significantly faster than I-131 microcapsules (imaging solids), at various areas of interest in the colon. In the colonic J-pouch patients, technetium TC 99m tin-colloid liquid was retained significantly longer in the descending colon at 24 hours (P <.05). Stool frequency was higher when technetium TC 99m tin-colloid was not retained in the descending colon at 56 hours (3.3 (0.5) vs. 4.3 (0.4) stools/day) but this did not reach statistical significance. There were no significant differences in the distribution of the ingested I-131 microcapsules between colonic J-pouch and straight groups. CONCLUSIONS: Reduced stool frequency after colonic J-pouch may be related to factors causing better retention of liquid stools in the distal colon. No difference in solid stool transit could possibly account for minimal evacuation problems in small pouches.

Aged↗
PubMed2002

Lymphocytic colitis treated with proctocolectomy and ileal J-pouch-anal anastomosis: report of a case.

PURPOSE: We present a case of severe diarrhea caused by lymphocytic colitis and concurrent celiac sprue in a patient who did not respond to maximal medical therapy and required surgery. METHODS: The patient was initially treated with fecal diversion via an end ileostomy. Six months later, she underwent colectomy and one-stage ileal J-pouch-anal anastomosis. RESULTS: Notably, the characteristic microscopic changes of lymphocytic colitis were still present at the time of colectomy despite diversion. CONCLUSION: Colectomy with continent reconstruction is an option for treatment of patients with lymphocytic colitis refractory to medical therapy.

Anal Canal↗
PubMed2002

Is ileoanal pouch function stable with time? Results of a prospective audit.

PURPOSE: Good continence is reported after ileal pouch-anal reconstruction, but little is known about long-term durability. Our aim was to prospectively evaluate long-term function in these patients. METHODS: Surveys were sent to 235 patients who had returned similar surveys in 1992; paired data were then compared with contingency tables. RESULTS: A total of 154 patients (66 percent) returned surveys. Mean age was 47 (range, 25-72) years. Median follow-up was 12 (range, 8-19) years. Sixty-eight patients (44 percent) were female. There were 5 deaths, and 11 patients had pouches removed or were given a defunctioning ileostomy. Bowel movement frequency did not change from 1992 to 2000 (24-hour frequency = 7 in 1992 vs. 7.1 in 2000; night frequency = 2 vs. 1.4; P = NS). Compared with 1992 data, major day incontinence was worse in 18 percent of patients, improved in 1 percent, and unchanged in 81 percent. Minor day incontinence was worse in 32 percent, improved in 9 percent, and unchanged in 59 percent. Major nighttime incontinence was worse in 22 percent, improved in 6 percent, and unchanged in 72 percent of patients, whereas minor night incontinence was worse in 24 percent, improved in 22 percent, and unchanged in 54 percent. Change in continence was unrelated to gender, age, or age at operation but was related to duration of follow-up. Twenty-seven percent of patients 12 or more years after surgery reported worsened major daytime incontinence vs. 9 percent of patients who were <12 years after surgery (P < 0.05); 33 percent reported more major night-time incontinence (vs. 10 percent; P < 0.05). Minor incontinence also worsened after 12 years. Minor daytime incontinence was seen in 48 percent of patients followed up > 12 years vs. 16 percent of those followed up <12 years (P < 0.05); minor nighttime incontinence was 28 vs. 19 percent, respectively. CONCLUSION: Most patients have stable pouch function over time. However, a small number improve and a larger number suffer measurable deterioration, particularly 12 or more years after surgery.

Adult↗
PubMed2002

Prospective, randomized trial comparing sigmoid vs. descending colonic J-pouch after total rectal excision.

PURPOSE: The aim of this study was to compare the bowel function of sigmoid vs. descending colonic J-pouches after ultralow anterior resection for rectal cancer. METHODS: A prospective, randomized trial was conducted from March 1998 to September 1999. Ninety-two consecutive patients undergoing ultralow anterior resection for cancers arising from 3 to 10 cm from the anal verge were recruited. Forty-eight patients were males; the mean ages (standard error of the mean) for patients with sigmoid and descending colon pouches, respectively, were 65.2 (3.1) years and 62.3 (3.1) years. A total of 46 patients were randomly assigned to each group. Two patients from each group were excluded; abdominoperineal resection was performed for two patients in the sigmoid pouch group and one patient in the descending pouch group. One patient in the descending pouch group had a transanal resection of a benign polyp. Dukes staging and use of postoperative chemoradiotherapy were statistically similar in both groups. All patients underwent a standardized ultralow anterior resection. A defunctioning loop ileostomy was used routinely. Anorectal physiology and bowel function questionnaires were performed at six weeks after ileostomy closure and again at 6 and 12 months after surgery. RESULTS: Median follow-up was 12 (range, 7 to 25) and 12 (range, 6 to 25) months, respectively, for sigmoid and descending pouch groups. Median tumor and anastomotic heights, time to ileostomy closure, operative time, and postoperative stay were statistically similar in both groups. There were no significant differences in stool frequency, incontinence, urgency, use of pads and antidiarrheals, sensation of incomplete evacuation, and anorectal physiology results between groups (P > 0.05). CONCLUSION: Pouches made from sigmoid or descending colon give similar bowel function after ultralow anterior resection for rectal cancers.

Adenocarcinoma↗
PubMed2002

Sulfate-reducing bacteria colonize pouches formed for ulcerative colitis but not for familial adenomatous polyposis.

PURPOSE: Ileal pouch-anal anastomosis remains the "gold standard" in surgical treatment of ulcerative colitis and familial adenomatous polyposis. Pouchitis occurs mainly in patients with a background of ulcerative colitis, although the reasons for this are unknown. The aim of this study was to characterize differences in pouch bacterial populations between ulcerative colitis and familial adenomatous pouches. METHODS: After ethical approval was obtained, fresh stool samples were collected from patients with ulcerative colitis pouches (n = 10), familial adenomatous polyposis (n = 7) pouches, and ulcerative colitis ileostomies (n = 8). Quantitative measurements of aerobic and anaerobic bacteria were performed. RESULTS: Sulfate-reducing bacteria were isolated from 80 percent (n = 8) of ulcerative colitis pouches. Sulfate-reducing bacteria were absent from familial adenomatous polyposis pouches and also from ulcerative colitis ileostomy effluent. Pouch Lactobacilli, Bifidobacterium, Bacteroides sp, and Clostridium perfringens counts were increased relative to ileostomy counts in patients with ulcerative colitis. Total pouch enterococci and coliform counts were also increased relative to ileostomy levels. There were no significant quantitative or qualitative differences between pouch types when these bacteria were evaluated. CONCLUSIONS: Sulfate-reducing bacteria are exclusive to patients with a background of ulcerative colitis. Not all ulcerative colitis pouches harbor sulfate-reducing bacteria because two ulcerative colitis pouches in this study were free of the latter. They are not present in familial adenomatous polyposis pouches or in ileostomy effluent collected from patients with ulcerative colitis. Total bacterial counts increase in ulcerative colitis pouches after stoma closure. Levels of Lactobacilli, Bifidobacterium, Bacteroides sp, Clostridium perfringens, enterococci, and coliforms were similar in both pouch groups. Because sulfate-reducing bacteria are specific to ulcerative colitis pouches, they may play a role in the pathogenesis of pouchitis.

Adenomatous Polyposis Coli↗
PubMed2002

T-pouch: a new valve design for a continent ileostomy.

PURPOSE: After proctocolectomy for ulcerative colitis or familial adenomatous polyposis, creation of a continent ileostomy is one of the surgical options. Although most patients will be offered a pull-through procedure, the continent ileostomy is a valuable alternative in patients who are either not candidates for or have failed an ileal pouch-anal anastomosis or who--for other reasons--prefer a permanent ileostomy. The traditional continent reservoirs (Kock or Barnett pouch) with an intussuscepted bowel segment as valve mechanism have an unsatisfactorily high incidence of dysfunction and frequent reoperations. The objective of this study was to adapt the T-pouch valve concept, previously used for urinary reservoirs, for a continent stool reservoir and to construct a valve mechanism that omits intussusception of the bowel and maintains the blood supply to the valve segment. METHODS: The technique for the critical valve construction is described in detail. It consists of isolating the terminal segment of the small bowel with its blood supply. The valve mechanism is created by embedding this segment in a serosa-lined tunnel of two apposed limbs of bowel that will form the pouch reservoir. RESULTS: Preliminary results in six patients indicate complete continence of the pouch. CONCLUSION: Although long-term results are not yet available, the new T-pouch concept is suitable as a continent stool reservoir and promises a significant improvement as compared with the traditional Kock pouch.

Equipment Design↗
PubMed2002

Takayasu's arteritis after total proctocolectomy for ulcerative colitis: report of a case.

PURPOSE: Although coexistence of Takayasu's arteritis with ulcerative colitis is often reported, all these cases have been in patients whose colons were in situ. The aim of the present study was to describe a patient who developed Takayasu's arteritis after total proctocolectomy for ulcerative colitis. METHODS: The clinical course of a 42-year-old female who developed Takayasu's arteritis after total proctocolectomy for ulcerative colitis is described and the literature reviewed. RESULTS: Symptomatic arteritis developed in the left carotid artery four months after total proctocolectomy with ileal J-pouch-anal anastomosis for ulcerative colitis. Peristomal pyoderma gangrenosum, multiple ulcers in the oral cavity, and leakage at the ileoanal anastomosis were observed simultaneously. High-dose therapy with steroids proved effective for the arteritis, pyoderma gangrenosum, and multiple oral ulcers. We finally excised the ileal pouch with anus because of the intractable leakage three years after the occurrence of Takayasu's arteritis. CONCLUSIONS: This patient illustrates the possibility that Takayasu's arteritis is an extraintestinal complication of ulcerative colitis even after surgical removal of the colon.

Adult↗
PubMed2002

Mucosal assessment for dysplasia and cancer in the ileal pouch mucosa in patients operated on for ulcerative colitis--a 30-year follow-up study.

PURPOSE: Sporadic reports of epithelial dysplasia and the occasional development of adenocarcinoma in the ileal pouch mucosa have recently appeared in the literature, pointing toward yet another long-term complication of the continent ileostomy and the pelvic pouch. The incidence of dysplasia and the risk for developing cancer has not been critically evaluated, however, and the reports are contradictory, with most having short observation times. The purpose of this study was to report long-term mucosal adaptation patterns and the incidence of dysplasia in Kock pouches after a mean follow-up of 30 years for patients previously operated on for ulcerative proctocolitis. METHODS: Two sets of two pathologists each (in Gothenburg, Sweden, and Manchester, United Kingdom) examined sequential, small-intestinal biopsy specimens from 40 patients with Kock pouch to observe long-term epithelial changes, with particular reference to the presence of dysplasia. RESULTS: There was full agreement between the two groups regarding the absence of high-grade dysplasia and invasive carcinoma (Categories 4 and 5 of the Vienna classification). There was, however, significant disagreement in reporting the frequency of low-grade and indefinite categories of dysplasia (Categories 2 and 3, of the Vienna classification). No attempt was made to report the differences within each set of pathologists. CONCLUSION: Because no case of high-grade dysplasia or invasive carcinoma was found in this study after a mean follow-up of 30 years, we conclude that it is very unlikely for invasive carcinoma to be a complication in ileal pouch mucosa.

Adenocarcinoma↗
PubMed2002

Pneumorrhachis, subcutaneous emphysema, pneumomediastinum, pneumopericardium, and pneumoretroperitoneum after proctocolectomy for ulcerative colitis: report of a case.

This article presents the first known case of pneumorrhachis (spinal air), pneumomediastinum, pneumopericardium, pneumoretroperitoneum, and subcutaneous emphysema after proctocolectomy for ulcerative colitis. We review the patient's medical history, clinical and laboratory findings, radiographic data, and operative records, as well as the relevant literature. We describe the case of a young male with ulcerative colitis who developed pneumorrhachis, subcutaneous emphysema, pneumoretroperitoneum, pneumomediastinum, and pneumopericardium after a proctocolectomy with ileal pouch-anal anastomosis. Unlike the case we report, previously described episodes of pneumomediastinum and subcutaneous emphysema in patients with ulcerative colitis developed before operative intervention. We offer possible explanations for these unusual complications based on analysis of this case and thorough review of the literature.

Adult↗
PubMed2002

Effect of dietary inulin supplementation on inflammation of pouch mucosa in patients with an ileal pouch-anal anastomosis.

PURPOSE: Inflammation is a constant finding in the ileal reservoir of patients with an ileal pouch-anal anastomosis and is associated with decreased fecal concentrations of the short chain fatty acid butyrate, increased fecal pH, changes in fecal flora, and increased concentrations of secondary bile acids. In healthy subjects, inulin, a dietary fiber, is fermented to short chain fatty acids and leads to a lower pH and potentially beneficial changes in fecal flora. The aim of the present study was to investigate the effect of enteral supplementation of inulin on inflammation of the ileal reservoir. METHODS: Twenty patients received 24 g of inulin or placebo daily during three weeks in a randomized, double-blind, crossover design. Stools were analyzed after each test period for pH, short chain fatty acids, microflora, and bile acids. Inflammation was assessed endoscopically, histologically, and clinically. RESULTS: Compared with placebo, three weeks of dietary supplementation with 24 g of inulin increased butyrate concentrations, lowered pH, decreased numbers of Bacteroides fragilis, and diminished concentrations of secondary bile acids in feces. This was endoscopically and histologically accompanied by a reduction of inflammation of the mucosa of the ileal reservoir. CONCLUSION: Enteral inulin supplementation leads to a decrease of inflammation-associated factors and to a reduction of inflammation of pouch mucosa.

Adenomatous Polyposis Coli↗
PubMed2002

Neorectal reservoir is not the functional principle of the colonic J-pouch: the volume of a short colonic J-pouch does not differ from a straight coloanal anastomosis.

BACKGROUND: Low anterior resection with coloanal anastomosis prevents a definitive stoma in patients with distal rectal cancer. However, imperative stool urge, stool fragmentation, prolonged stooling sessions, and minor problems of incontinence are frequently observed in the postoperative situation and negatively affect quality of life. Therefore, the colonic J-pouch was originally constructed to create a stool reservoir. In a randomized, prospective study, the short (5 cm) colonic J-pouch was tested for function and continence vs. straight coloanal anastomosis. METHODS: Over a period of 30 months, 74 consecutive patients (55 males) with rectal cancer in the lower and middle third of the rectum were included and randomized into two groups. Anastomosis was performed either as a coloanal or a colon-pouch-anal anastomosis. The standardized surgical procedure included mobilization of the left hemicolon, central ligation of the inferior mesenteric artery and vein, preaortal lymph node dissection, autonomic nerve preservation, and total mesorectal excision. The anastomosis was performed at the upper anal canal or at the intersphincteric level. All patients were evaluated preoperatively and six months postoperatively for fecal continence, including sphincter manometry and defecation habits. In addition, quality of life was determined by use of a standardized questionnaire (European Organization for Research and Treatment of Cancer, EORTC-QLQ-C30). RESULTS: Thirty-seven patients were randomized into each group. In general, problems with continence for liquids or gas occurred less frequently in the colonic J-pouch group 6 months after surgery. The frequency of bowel movements was lower in the J-pouch group (2.5 per day) than in the coloanal group (4.7 per day). Importantly, in a manometric study at the same postoperative point, neorectal capacity was decreased to a similar degree in both groups compared with the preoperative rectal volume. Thus, the expected and postulated reservoir effect could not be achieved by forming a 5-cm colonic J-pouch. CONCLUSION: The colonic J-pouch was superior with regard to continence for gas and liquids compared with a straight coloanal anastomosis. Furthermore, stool frequency was significantly lower in the J-pouch group than in the coloanal reconstruction group. However, because neorectal capacity decreased equally in both groups, we speculate that the advantage of the colonic J-pouch is not in the creation of a larger neorectal reservoir but rather may be related to decreased motility.

Adult↗
PubMed2002

Adenocarcinoma in the anal canal after ileal pouch-anal anastomosis for ulcerative colitis using a double stapling technique: report of a case.

A case of adenocarcinoma, developed in the anal canal after ileal pouch-anal anastomosis for ulcerative colitis using a double stapling technique, is reported. In this case a T3N0 cecal cancer was found unexpectedly in the colectomy specimen. Two years later, this patient presented with an outlet obstruction of the pouch because of development of an adenocarcinoma of the anal canal. This was treated with an abdominoperineal excision of the pouch and anorectum.

Adenocarcinoma↗