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At least 109 records · Page 6Linked to original sources
PubMed1993

The pull-through procedure: technical factors in influencing outcome, with emphasis on pouchitis.

BACKGROUND: The purpose of the study was to review those features that we believed to be critical to the successful performance of the ileal pouch-anal anastomosis, or pull-through, procedure, and specifically the complication of pouchitis. METHODS: The charts of 205 patients who successfully underwent ileal pouch-anal anastomosis procedure were reviewed. No follow-up was available in five patients; therefore, the basis of this report and its analysis was based on 200 consecutive procedures in which at least two of the three surgeons participated. Particular emphasis was placed on continence, particularly nighttime continence. The incidence of pouchitis, either a single episode or intermittent episodes, was surveyed. Particular attention was paid to the level of rectal mucosectomy and anastomosis at the top of the columns of Morgagni, thus retaining the transitional zone. RESULTS: Only 5% of patients were incontinent in the absence of pouchitis. Twenty-five patients (13%) wore a pad at night, but only nine (5%) wore a pad during the day. Of those patients with pouchitis, 6% (12) have had a single episode and 12% (23) were intermittently on medication. Therapy of pouchitis was usually carried out with ciprofloxacin 500 mg by mouth everyday or twice a day. CONCLUSIONS: Ileal pouch-anal anastomosis is an excellent procedure, provided technical details are adhered to. Satisfactory outcome with respect to nighttime continence can be achieved with rectal mucosectomy with minimal manipulation and retaining the transitional epithelium, performing the pouch anastomosis at the top of the columns of Morgagni. The incidence of pouchitis is disappointing but need not be inhibiting of either patients or carrying out this life-saving procedure in patients with ulcerative colitis and familial polyposis.

Adolescent↗
PubMed1999

Misdiagnosis of specific cytomegalovirus infection of the ileoanal pouch as refractory idiopathic chronic pouchitis: report of two cases.

PURPOSE: Chronic nonspecific reservoir ileitis (pouchitis) occurs in 5 to 10 percent of patients who undergo ileal pouch-anal anastomosis for ulcerative colitis. Specific infection of the ileal pouch-anal anastomosis with cytomegalovirus has not been reported. AIM: We report two patients with specific cytomegalovirus infection of the ileal pouch-anal anastomosis, initially misdiagnosed as idiopathic chronic pouchitis. CASE SERIES: Patient 1 had ileal pouch-anal anastomosis for ulcerative colitis. Three years later she had diarrhea, fever, pelvic pain, and pouch inflammation at endoscopy consistent with pouchitis. She had no response to medical therapy. Repeat endoscopy showed persistent inflammation and biopsies showed cytomegalovirus. She had symptomatic improvement after treatment with intravenous ganciclovir, 10 mg/kg/day for ten days (stopped for rash). Repeat pouch biopsies were negative for cytomegalovirus. Patient 2 had ileal pouch-anal anastomosis for ulcerative colitis. Nine years later she had resection of obstructing stricture at previous loop ileostomy site. She underwent reoperation with ileostomy and pouch defunctionalization for peritonitis. Four weeks later she had fever and bloody discharge from the diverted pouch. Pouch endoscopy with biopsy showed inflammation consistent with pouchitis. She had no response to medical therapy. Re-examination of pouch biopsies with a specific monoclonal immunofluorescent stain showed cytomegalovirus. She had symptomatic improvement after treatment with intravenous ganciclovir, 10 mg/kg/day for 21 days. Repeat pouch biopsies were negative for cytomegalovirus. CONCLUSIONS: Specific cytomegalovirus infection of the ileal pouch-anal anastomosis may be misdiagnosed as idiopathic refractory chronic pouchitis. Cytomegalovirus must be excluded before immune modifier therapy or pouch excision in these patients.

Adult↗
PubMed2006

Chronic pouchitis after ileal pouch-anal anastomosis for ulcerative colitis: effect on quality of life.

Chronic pouchitis can be observed in up to 30% of patients after proctocolectomy with ileal pouch-anal anastomosis (IPAA) for ulcerative colitis (UC). It remains a poorly understood complication and often requires chronic antibiotic and antidiarrheal treatment. We hypothesized that its occurrence can be predicted by distinct clinical parameters and that it adversely affects quality of life. Sixty-eight of 129 consecutive UC patients who underwent IPAA over a 10-year period were evaluated by Cleveland Clinic Global Quality of Life questionnaires, telephone interviews, and by chart review. Using bivariate comparison, clinical predictors for the occurrence of chronic pouchitis were sought, and postoperative data analyzed with regard to functional results and quality of life. Nineteen of 68 patients (28%) experienced chronic pouchitis, but its occurrence could not be predicted by any variable assessed. Patients with chronic pouchitis complained of more frequent fecal incontinence (32% vs. 4% in controls; P < 0.01), of more frequent bowel movements (7.7/day vs. 6.2/day; P < 0.05), and experienced severe abdominal pain more often (P < 0.05). Overall quality of life and satisfaction with surgery, as well as subjective health and energy levels were lower in patients with chronic pouchitis (P < 0.01); however, greater than 80% of these patients would consider undergoing the same procedure again.

Abdominal Pain↗
PubMed1997

Bismuth carbomer foam enemas for active chronic pouchitis: a randomized, double-blind, placebo-controlled trial.

BACKGROUND: Bismuth carbomer liquid enemas are equivalent to mesalamine enemas for active distal ulcerative colitis. AIMS: In this study, the efficacy and safety of bismuth carbomer foam enemas for active chronic pouchitis was determined in a placebo-controlled trial. PATIENTS: Forty adult patients with active chronic pouchitis were randomly assigned into either concurrent therapy for pouchitis or no concurrent therapy. Topical corticosteroids and mesalamine were withdrawn prior to the study. METHODS: Patients received either bismuth carbomer (270 mg elemental bismuth) (n = 20) or placebo (n = 20) foam enemas for 3 weeks. Clinical assessment was performed at baseline and at 3 weeks using the pouchitis disease activity index score which incorporates symptoms, endoscopy and histology. Serum bismuth concentrations were determined by atomic absorption spectrophotometry. RESULTS: At 3 weeks nine of 20 patients (45%) in both the bismuth and placebo groups had improved. Ten patients discontinued prematurely because of worse diarrhoea (three in each group) or abdominal cramping after enema use (one from the bismuth group and three from the placebo group). No other side-effects were noted. Serum bismuth concentrations were negligible in all patients. CONCLUSIONS: Bismuth carbomer foam enemas (270 mg bismuth) nightly for 3 weeks are safe but not efficacious for active chronic pouchitis.

Adolescent↗
PubMed2001

The interleukin 1 receptor antagonist gene allele 2 as a predictor of pouchitis following colectomy and IPAA in ulcerative colitis.

BACKGROUND & AIMS: The interleukin 1 receptor antagonist gene allele 2 has been suggested as a determinant of both disease susceptibility and extent in ulcerative colitis. The aim of this study was to assess the allele as a predictor of both the indication for colectomy and the occurrence of pouchitis after ileal pouch-anal anastomosis formation. METHODS: Genotyping for the +2018 single nucleotide polymorphism in the interleukin 1 receptor antagonist gene was performed in 109 patients who had undergone colectomy, including 82 patients who had been followed prospectively after ileal pouch-anal anastomosis formation. RESULTS: Patients with pouchitis had a higher allele 2 carriage rate compared with those without pouchitis (72% vs. 45%) and Kaplan-Meier survival analysis showed that allele 2 carriers had a significantly increased incidence of pouchitis compared with noncarriers (log-rank test, 6.5). After adjustment for confounding covariates in a Cox proportional hazards model, the relative hazard was 3.1 (95% confidence interval [CI], 1.2-7.8; P = 0.02). Although there was a higher allele 2 carriage rate in patients with chronic refractory compared with acute severe ulcerative colitis (63% vs. 48%), this difference was not significant (odds ratio, 1.9; 95% CI, 0.9-4.1; P = 0.1). CONCLUSIONS: The interleukin 1 receptor antagonist gene allele 2 predicts pouchitis after ileal pouch-anal anastomosis in ulcerative colitis.

Adolescent↗
PubMed2001

Arthritis related to ileal pouchitis following total proctocolectomy for ulcerative colitis.

OBJECTIVE: To draw attention to arthritis that developed in patients who underwent total proctocolectomy with ileal pouch construction for ulcerative colitis (UC). METHODS: The course of 4 patients who developed arthritis for the first time after ileal-anal pouch anastomosis is described. In addition, the relationship to the chronic inflammation of the pouch-pouchitis-is discussed. RESULTS: The clinical manifestations were very similar to seronegative arthritis affecting mainly the joints of the lower extremities. It was accompanied by enthesopathy (2 patients) and by sacroiliitis (2 patients). All had active pouchitis. The abnormal laboratory test results were nonspecific, indicating chronic inflammation. All 4 patients tested negative for human leukocyte antigen (HLA) B27, and none had other concomitant extraintestinal manifestations. Steroids rapidly improved both the arthritis and pouchitis; however, disease-modifying antirheumatic drugs were required to maintain remission with minimal daily steroids. Flares of the arthritis were always associated with active pouchitis, but the opposite was not necessarily true. CONCLUSIONS: Arthritis related to ileal pouchitis after total colectomy for UC has many similarities to the arthritis associated with inflammatory bowel disease and should be added to the list of enteropathic arthropathies.

Adult↗
PubMed2002

[Pouchitis--pathophysiology and therapy].

Ulcerative colitis can be cured with a reasonable quality of life by the complete excision of the colorectum and construction of an ileoanal pouch. The cure is incomplete since there is a certain incidence of a so called pouchitis. Pouchitis occurs with a frequency of 36 %. A single episode of a pouchitis can be cured easily, but in 8-32 % the concerned patients develop a chronic pouchitis. There are many signs that pouchitis might be a remanifestation of ulcerative colitis. This article gives an overview on the actual state of pathophysiology, pathogenesis and therapy of this disease. Apart of that the surgical aspects of the disease are described.

Chronic Disease↗
PubMed2001

Increase in cyclooxygenase-2 and nitric oxide-synthase-2 mRNAs in pouchitis without modification of inducible isoenzyme heme-oxygenase-1.

OBJECTIVES: The pathophysiology of pouchitis occurring after ileal pouch-anal anastomosis remains controversial. Prostaglandins and nitric oxide synthesized in excess by cyclooxygenase-2 and nitric oxide synthase-2 are thought to be involved in the inflammatory process. Because heme oxygenase-1, by its antioxidant properties, could modulate inflammatory reaction, we analyzed mRNAs of the three enzymes (cyclooxygenase-2, nitric oxide synthase-2, and heme oxygenase-1) in patients with ileal pouch-anal anastomosis. METHODS: Endoscopic biopsies were obtained in eight patients with normal ileal pouch-anal anastomosis, in eight patients with pouchitis, and in normal ileum of six healthy subjects. A relative quantitative RT-PCR was performed to determine the levels of cyclooxygenase-2, nitric oxide synthase-2, and heme oxygenase-1 mRNAs. RESULTS: Cyclooxygenase-2 and nitric oxide synthase-2 mRNAs were increased both in normal ileal pouch-anal anastomosis and in pouchitis, compared with healthy subjects. Pouchitis disease activity index was correlated with mRNA levels of cyclooxygenase-2 (r = 0.71; p < 0.01) and nitric oxide synthase-2 (r = 0.51; p < 0.05). Heme oxygenase-1 mRNA levels were not significantly different in patients versus healthy subjects. CONCLUSIONS: The increase in cyclooxygenase-2 and nitric oxide synthase-2 mRNA levels both in pouchitis and normal ileal pouch-anal anastomosis demonstrates that a latent inflammatory process occurs in the ileal pouch mucosa. This inflammatory process was not found to be associated with an induction of heme oxygenase mRNA, a possible regulator of the inflammatory response.

Adult↗
PubMed2004

Human lymphocyte stimulation with pouchitis flora is greater than with flora from a healthy pouch but is suppressed by metronidazole.

BACKGROUND/AIMS: The gut flora may play an important role in the pathogenesis of inflammatory bowel disease. An ileal reservoir or pouch can be created to replace the excised rectum after proctocolectomy. In patients with ulcerative colitis this is subject to inflammation and termed pouchitis. Using bacteria from patients the authors sought evidence for the presence rather than the identity of a pathogenic species in pouchitis, and for its absence in healthy pouches by the differential effect on lymphocyte proliferation. METHODS: An ex vivo cell culture assay was used in which peripheral blood mononuclear cells or lamina propria mononuclear cells were cultured with sterile sonicates of gut flora from patients with or without pouchitis in the presence of antigen presenting cells. RESULTS: Sonicated pouchitis flora produced a consistent and intense proliferation of the mononuclear cells but that produced by sonicates from healthy pouches was minimal (p = 0.012 or 0.018, peripheral blood or lamina propria mononuclear cells). Preparation of the sonicates with the antibiotic metronidazole abolished their stimulatory ability (p = 0.005, peripheral blood mononuclear cells). In separate assays neither direct addition of metronidazole nor of its hydroxy metabolite affected the mononuclear cells' proliferation with alternative stimuli. CONCLUSIONS: These results strongly support a bacterial aetiology for pouchitis.

Adolescent↗
PubMed2005

Elevated platelet count before ileal pouch-anal anastomosis for ulcerative colitis is associated with the development of chronic pouchitis.

Acute pouchitis (AP) after ileal pouch-anal anastomosis (IPAA) is common and easily treated. However, chronic pouchitis (CP) remains a difficult management problem and may represent a form of Crohn disease (CD) of the ileal pouch. Because CD patients have higher platelet counts than ulcerative colotis (UC) patients, we prospectively evaluated the association between preoperative platelet count and pouchitis development in 159 patients undergoing IPAA. Reactive thrombocytosis (RT) was defined as a platelet count > 450 x 10(9)/L. Median preoperative platelet count was 312 x 10(9)/L (range, 103 x 10(9)/L to 886 x 10(9)/L). One hundred twenty-five patients (79%) had a normal (150 x 10(9)/L to 450 x 10(9)/L) platelet count (-RT patient group). Twenty-eight patients (18%) had RT. Six patients (3%) had a platelet count below 150 x 10(9)/L. After a median follow-up of 13 months, 45 patients (28%) developed pouchitis. Pouchitis developed in 33 +RT patients (26%) versus 9 -RT patients (32%) (P = NS). UC patients who had +RT had a 25 per cent incidence of CP compared to only 7 per cent of those UC patients who had -RT (P = 0.03). The incidence of CP was significantly higher after IPAA in UC patients having thrombocytosis before surgery compared to UC patients having a normal platelet count before surgery.

Adolescent↗
PubMed1995

Cytokine production in pouchitis is similar to that in ulcerative colitis.

PURPOSE: Controversy exists as to whether pouchitis represents a reactivation of the immunologic mechanisms that lead to ulcerative colitis (UC). The aims of this study were to determine local levels of the cytokines: interleukin-1 beta (IL-1 beta), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor alpha (TNF alpha) in the mucosa of patients with "asymptomatic" ileoanal pouch (n = 25), pouchitis (n = 9), active UC (n = 20), normal ileum (n = 15), proctitis (n = 10), and normal colon (n = 15). METHODS: Lamina propria mononuclear cells were isolated from mucosal biopsies by enzymatic dispersion and cultured for 48 hours. Proinflammatory cytokine levels were measured in the supernatants by enzyme-linked immunosorbent assay. RESULTS: IL-1 beta, IL-6, IL-8, and TNF alpha secretions were significantly greater in pouchitis and active UC than in the noninflamed ileoanal pouch and normal controls (P < 0.001). There was significant correlation (r = 0.63, P < 0.05) between levels of cytokines expressed in pouchitis and active UC. CONCLUSIONS: Increased cytokine expression occurs in both active UC and pouchitis and to a lesser extent in the long-standing ileoanal pouch.

Adolescent↗
PubMed1987

Relationship of backwash ileitis to ileal pouchitis after ileal pouch-anal anastomosis.

To assess whether the presence of backwash ileitis predisposed to the subsequent development of ileal pouchitis after ileal pouch-anal anastomosis, 131 patients who had the operation were studied. Fifteen patients had nonspecific inflammation in the terminal ileum noted at the time of the operation, while 20 patients subsequently developed pouchitis. No correlation between the two conditions was found. Pouchitis developed in two of 15 patients (13 percent) with backwash ileitis and in 18 of 116 patients (16 percent) without the ileitis (P greater than 0.05). Among the 20 patients with pouchitis only two (10 percent) had had previous backwash ileitis. It is concluded that the presence of backwash ileitis does not predispose to later development of pouchitis, and so does not contraindicate use of the inflamed terminal ileum for construction of the ileal pouch and anastomosis.

Adenomatous Polyposis Coli↗
PubMed1991

Presence of PAF-acether in stool of patients with pouch ileoanal anastomosis and pouchitis.

Platelet-activating factor is an endogenous phospholipid produced by a wide variety of inflammatory cells. Platelet-activating factor induces severe pathological changes in various organs and, among numerous potent effects, causes bowel necrosis. Pouchitis is a poorly understood complication of ileoanal pouch anastomosis which occurs in patients who undergo surgery for ulcerative colitis. The aim of this study was to measure ileal or fecal platelet-activating factor and lyso platelet-activating factor contents in normal volunteers (n = 12), in patients with terminal ileostomy (n = 7), and in patients with ileoanal anastomosis (n = 15) (8 patients have pouchitis defined by the presence of ulcerations on the reservoir). Fecal samples were processed and assessed for platelet-activating factor by platelet aggregation assay. The aggregating material was further characterized as platelet-activating factor by the following: inhibition of the platelet aggregation it induced by specific platelet-activating factor receptor antagonist (BN 52021; IHB, Le Plessis Robinson, France); abolition of platelet aggregation after incubation with phospholipase A2 but not with lipase A1; and retention time on high-performance liquid chromatography. Stool platelet-activating factor content (in nanograms per gram of stool, mean +/- 1SD) was significantly increased in patients with pouchitis (22.2 +/- 16 ng/g) compared with patients with normal reservoir (1.59 +/- 0.63 ng/g, P less than 0.01), terminal ileostomy (0.59 +/- 0.43 ng/g, P less than 0.01), and healthy controls (0 +/- 0 ng/g of stool, P less than 0.001). Lyso platelet-activating factor (nanograms per gram of stool) was increased in patients with pouchitis (10,704 +/- 5499 ng/g) compared with patients with normal reservoir (4721 +/- 4549 ng/g of stool, P less than 0.05), terminal ileostomy (3042 +/- 4019 ng/g, P less than 0.02), and healthy volunteers (128 +/- 107 ng/g, P less than 0.001). In patients with ileoanal anastomosis and pouchitis, increased platelet-activating factor production could be implicated in the inflammation and ulcerations observed in the reservoir.

Adult↗
PubMed1994

Topical metronidazole treatment in pouchitis.

Patients with pouchitis usually respond to oral metronidazole treatment, but side effects of the treatment are common. Eleven patients with pouchitis were given local treatment by instillation of metronidazole in doses of 40-160 mg daily into the reservoir. The effects of the treatment on the bacterial flora and short-chain fatty acids in reservoir contents, morphology of the ileal mucosa, and serum concentrations of metronidazole were studied. All patients responded to local administration of metronidazole. Three patients with chronic pouchitis remained well for 6 months, 3 years, and 4 years, taking 40 mg metronidazole daily. Three patients had one single treatment course, and four had repeated courses when they had recurrences. In one patient a continent reservoir had to be removed owing to a persistent ulcer causing chronic blood loss. The bacterial flora of reservoir contents showed no significant differences between patients with and without pouchitis. The number of anaerobic microorganisms and the concentration of short-chain fatty acids were reduced after metronidazole treatment. Serum concentrations of metronidazole were very low, and no patients experienced any side effects of the treatment. In conclusion, topical application of small doses of metronidazole relieved symptoms in most cases of pouchitis and was well tolerated, even as long-term treatment.

Adenomatous Polyposis Coli↗
PubMedDate not supplied

Management of refractory fistulizing pouchitis with infliximab.

UNLABELLED: This study provides the long-term follow-up data on the efficacy of infliximab in the treatment of chronic refractory pouchitis complicated by fistulae following ileo-pouch anal anastomosis (IPAA) for ulcerative colitis (UC). METHODS: Seven patients (4 F, 3 M) with chronic refractory pouchitis complicated by fistulae were included in an open study. Pouchitis was diagnosed by clinical plus endoscopical and histological criteria. Fistulae were: pouch-bladder in 1, vaginal in 3, perianal in 2, both vaginal and perianal in 1 patient. Extraintestinal manifestations were present in 4 patients. All the patients were refractory to antibiotics (3 patients also to steroids). Crohn's disease was carefully excluded in all patients after re-evaluation of the history, re-examination of the original proctocolectomy specimen, examination of the proximal small bowel. Patients received Infliximab 5 mg/kg at 0, 2 and 6 weeks. Azathioprine (2.5 mg/kg) was also started for all patients as bridge therapy. Clinical response was classified as complete, partial, and no response. Fistulae closure was classified as complete, partial, and no closure. The pouchitis disease activity index (PDAI) and quality of life (QoL) were also used as outcome measures. RESULTS: Clinically, all patients improved. At 10-week follow-up, 6 out of 7 patients had a complete clinical response, and 5 out of 7 patients had complete fistulae closure. At 10- week follow-up, median PDAI dropped from 12 (baseline) (range, 10-15) to 5 (range, 3-8); median QoL decreased from 37 (range, 33-40) to 14 points (range, 9-18), respectively. Extraintestinal manifestations (erythema nodosum and arthralgiae) completely remitted soon after the first infusion of infliximab. Clinical response and fistulae closure were maintained in the long-term follow-up. CONCLUSIONS: These results seem indicate that infliximab plus azathioprine may be recommended for the treatment of refractory pouchitis complicated by fistulae following IPAA for UC.

Adult↗
PubMed1990

The pelvic ileal reservoir: pathology and pouchitis.

The creation of a pelvic ileal reservoir is associated with inflammatory changes in the reservoir mucosa. Chronic inflammation and villous atrophy are seen in most patients with both ulcerative colitis and familial adenomatous polyposis (FAP), the two prime indications for the operation. The mucosa undergoes a form of colonic metaplasia which is demonstrable by morphological, mucin histochemical, immunohistochemical and proliferation methods. Other pathological features such as mucosal ischaemia, mucosal prolapse, granulomas and pyloric metaplasia are seen in the pouch mucosa and these changes contribute to the confusion over definitions of pouchitis. The term pouchitis denotes a chronic relapsing inflammatory condition of the reservoir which occurs in 10-20% of patients and is one of the more severe long-term complications of reservoir construction. Useful definitions of pouchitis should include clinical, endoscopic and histopathological criteria. There are close associations between pouchitis and an original diagnosis of ulcerative colitis. The cause of pouchitis is currently obscure but there is evidence to suggest it may represent a recurrence of colitis in metaplastic mucosa and may provide a useful human model for colitis. The demonstration of markedly increased proliferative activity in association with colonic metaplasia has worrying connotations. However, dysplasia has not yet been described in colitic reservoirs and very few adenomas have been seen in polyposis reservoirs. Nevertheless the clinical and pathological evidence would indicate that long-term surveillance of the reservoir mucosa by endoscopy and mucosal biopsy is warranted.

Adenomatous Polyposis Coli↗
PubMed1995

Faecal alpha 1-antitrypsin concentration in the diagnosis and management of patients with pouchitis.

OBJECTIVE: To investigate the role of faecal alpha 1-antitrypsin concentration in the diagnosis and management of patients with ileal pouch-anal anastomosis. DESIGN: Prospective study. METHODS: Fifty-two measurements of faecal alpha 1-antitrypsin concentration were taken from 33 patients operated on for ulcerative colitis. RESULTS: Patients with active pouchitis (44.4 +/- 7.1 mg%) had a three-fold higher mean faecal alpha 1-antitrypsin concentration than patients in remission (13.7 +/- 1.3 mg%; P < 0.0001), than patients who had never had pouchitis (14.4 +/- 2.3 mg%; P < 0.003) and than patients with incontinent ileostomies (12.7 +/- 1.3 mg%; P < 0.004). Faecal alpha 1-antitrypsin measurements were 80% sensitive and 97% specific for active pouchitis. A significant positive correlation between the pouchitis disease activity index and faecal protein loss was observed (r = 0.702; P < 0.0001). The correlations between protein loss and other parameters were weaker (protein loss versus clinical score, r = 0.309; versus endoscopic score, r = 0.583; and versus histologic score, r = 0.558). CONCLUSION: Faecal alpha 1-antitrypsin concentration is a good indicator of the degree of intestinal inflammation in pouchitis and may be useful as a quantitative index of disease activity in prospective studies.

Adult↗
PubMed1993

[Ileo-anal "pouchitis": a still misunderstood pathology].

Chronic and/or acute inflammation of the ileal reservoir, so-called "pouchitis", is a frequently observed long-term complication of the ileo-anal "pouch" anastomosis. In ulcerative colitis patients, the prevalence of "pouchitis" varies from less than 10% to higher than 40%. These large variations reflect differences in diagnostic criteria and length of follow-up. The definition of "pouchitis" should include clinical symptoms, macroscopic inflammatory lesions at endoscopy and histological evidence of intense acute inflammation of the reservoir mucosa. Local bacterial overgrowth, lack of short chain fatty acids, increased secondary biliary acids, decreased intraepithelial T-lymphocytes and oxygen derived free-radicals could be implicated in the pathogenesis of pouchitis. In the absence of definite aetiology for pouchitis, its treatment is purely empirical: metronidazole, corticosteroids and 5-aminosalicylic acids are the most used drugs. The long-term consequences of the partial colic metaplasia of the pouch mucosa remain to be elucidated by regular clinical, endoscopical and histological longitudinal.

Adrenal Cortex Hormones↗