Abordagem diagnóstica e de manuseio da pouchite em doença inflamatória intestinal / Diagnostic and management approach to pouchitis in inflammatory bowel disease

ABSTRACT In patients with ulcerative colitis refractory to medical therapy, total proctocolectomy and posterior ileal-anal pouch anastomosis is the standard surgical therapy. One of the possible complications is pouchitis. Depending on the duration of the symptoms, it can be classified as acute, recurrent, or chronic. The latter, according to the response to therapy, can be defined as antibiotic-dependent or refractory. The treatment of pouchitis is based on the use of antibiotics and probiotics. Thiopurine and biological therapy have been suggested in patients with refractory pouchitis. Special care should be taken in the endoscopic surveillance of these patients, especially if they present risk factors such as dysplasia or previous colorectal cancer, primary sclerosing cholangitis or ulcerative colitis for more than 10 years.

RESUMO Em pacientes com colite ulcerativa refratária à terapia médica, a proctocolectomia total e anastomose de bolsa ileal-anal posterior é a terapia cirúrgica padrão. Uma das possíveis complicações é a pouchite. Dependendo da duração dos sintomas, pode ser classificado como aguda, recorrente ou crônica. Esta última, de acordo com a resposta à terapia, pode ser definida como dependente de antibióticos ou refratária a eles. O tratamento da pouchite baseia-se no uso de antibióticos e probióticos. A thiopurina e a terapia biológica têm sido sugeridas em pacientes com pouchite refratária. Um cuidado especial deve ser tomado na vigilância endoscópica desses pacientes, especialmente se apresentarem fatores de risco, como displasia ou câncer colorretal anterior, colangite esclerosante primária ou colite ulcerativa por mais de 10 anos.

Reservoritis/pouchitis: fisiopatología y manejo basado en la evidencia / Reservoirs/pouchitis: physiopathology and evidence-based management

Pouchitis is a frequent complication following proctocolectomy with ileal pouch-anal anastomosis, mainly in patients with ulcerative colitis. Though etiology is still unknown, evidence shows that there is a relation with host microbiota. Management of chronic refractory pouchitis is challenging, and current evidence showns that the use of biologic agents may have a favourable response.

La reservoritis es una complicación frecuente en pacientes en quienes se ha practicado una proctocolectomía con reservorio ileal, principalmente en pacientes con colitis ulcerosa. La etiología si bien es desconocida, la evidencia actual apunta a que exista una relación con la microbiota del huésped. La reservoritis refractaria crónica es un desafio en el manejo y actualmente ha surgido evidencia que apunta que el uso de biológicos puede tener una respuesta favorable.

Histopathological evaluation and risk factors related to the development of pouchitis in patients with ileal pouches for ulcerative colitis

OBJECTIVE: Many changes in mucosal morphology are observed following ileal pouch construction, including colonic metaplasia and dysplasia. Additionally, one rare but potential complication is the development of adenocarcinoma of the reservoir. The aim of this study was to evaluate the most frequently observed histopathological changes in ileal pouches and to correlate these changes with potential risk factors for complications. METHODS: A total of 41 patients were enrolled in the study and divided into the following three groups: a non-pouchitis group (group 1) (n = 20; 8 males; mean age: 47.5 years) demonstrating optimal outcome; a pouchitis without antibiotics group (group 2) (n = 14; 4 males; mean age: 47 years), containing individuals with pouchitis who did not receive treatment with antibiotics; and a pouchitis plus antibiotics group (group 3) (n = 7; 3 males; mean age: 41 years), containing those patients with pouchitis who were administered antibiotics. Ileal pouch endoscopy was performed, and tissue biopsy samples were collected for histopathological analysis. RESULTS: Colonic metaplasia was found in 15 (36.6%) of the 41 patients evaluated; of these, five (25%) were from group 1, eight (57.1%) were from group 2, and two (28.6%) were from group 3. However, no correlation was established between the presence of metaplasia and pouchitis (p = 0.17). and no differences in mucosal atrophy or the degree of chronic or acute inflammation were observed between groups 1, 2, and 3 (p>0.45). Moreover, no dysplasia or neoplastic changes were detected. However, the degree of mucosal atrophy correlated well with the time of postoperative follow-up (p = 0.05). CONCLUSIONS: The degree of mucosal atrophy, the presence of colonic metaplasia, and the degree of acute or chronic inflammation do not appear to constitute risk factors for the development of pouchitis. Moreover, we observed that longer postoperative follow-up times were associated with greater degrees of mucosal atrophy.

Reservorio ileal con anastomosis reservorio anal por colitis ulcerosa: Complicaciones y resultados funcionales a largo plazo / Ileal pouch-anal anastomosis for ulcerative colitis: Complications and long term functional results

Background: The ileo anal-pouch-anastomosis (IPAA) is the treatment of choice for patients with ulcerative colitis (UC). Aim To analyze the surgical outcomes, long term evolution and functional results of IPAA. Material and methods: All patients subjected to an IPAA, from 1984 to 2006 were identified from a prospectively constructed inflammatory bowel disease database. Surgical variables, postoperative complications and functional evaluation, using Oresland score were analyzed. Chi square, Fischer exact test, T Student, Mann Whitney and binary logistic regression were included in the statistical analysis. Results: In the study period 107 patients, aged 14 to 62 years (61 females), subjected to an IPAA, were identified in this period. All patients, except 4, had a J pouch. All were protected with a loop ileostomy Thirteen patients (12.1 percent) had specific postoperative complications: pelvic collections in five (4.6 percent), wound infection in four (3.7 percent), fistula of the anastomosis in two (1.8 percent), hemoperitoneum and pouch necrosis in one each. Three (2.7 percent) patients were reoperated. There was no post-operative (30 days) mortality. A complete follow-up was obtained in 106 of 107 patients: four evolved as Crohn disease; four lost their pouch and two died for other causes. One patient required an ileostomy due to a vaginal fistula. Seventy two patients were followed more than 36 months after ileostomy closure and 92 percent have a satisfactory intestinal function. In the univariate analysis, poorest intestinal function was related to age of diagnosis of UC and presence of chronic pouchitis. In the multivariate analyses age of diagnosis was associated with poor function. Conclusions: IPAA has a low rate of complications. The long term intestinal function is satisfactory in most patients. A poorer intestinal function was observed in older patients and those with chronic pouchitis).

Diagnóstico y tratamiento de pouchitis: presentación de un caso y revisión de la literatura / Diagnostic and treatment of pouchitis: presentation of a case and review of the literature

Introducción: la proctocolectomía total con anastomosis ileo-anal en J es el procedimiento de elección para el tratamiento de la colitis ulcerosa. La inflamación inespecífica del pouch (pouchitis) es la complicación más frecuente del postoperatorio alejado. Se presenta un caso clínico de pouchitis, analizando el manejo diagnóstico y terapéutico de la entidad con revisión de la literatura al respecto. Lugar de Aplicación: Hospital de alta complejidad "Pte. Juan Domingo Perón", Formosa, Argentina. Diseño: presentación de caso clínico y revisión de la literatura. Pacientes y Métodos: mujer de 25 años, intervenida quirúrgicamente en 1995 por colitis ulcerosa, realizándose proctocolectomía total + anastomosis ileo-anal con pouch en J. En marzo de 2005 consulta por dolor abdominal, diarrea, hemoproctorragia, pujo y tenesmo rectal. Se realiza videocolonoscopía, observándose mucosa edematosa, friable y ulceraciones.Se toman muestras de biopsia. Anatomopatológicamente se informa: "mucosa intestinal con foco de ulceración, lámina propia con intenso edema, congestión vascular e infiltrado inflamatorio lifoplasmocitario y polimorfonuclear. Diagnóstico: pouchitis crónica con marcada actividad". Se indica tratamiento con Ciprofloxacina 500 mg. vía oral durante 15 días, evidenciándose mejoría clínica. Se repite videocolonoscopía, observándose remisión del cuadro. Resultados: La incidencia de pouchitis varía entre 10 y 50 por ciento. Los síntomas son inespecíficos: cólicos abdominales, artralgias, incontinencia, diarrea, hemoproctorragia, pujo y tenesmo rectal. La sospecha debe ser confirmada con endoscopía y toma de biopsias del pouch. Se comparó ciprofloxacina oral con metronidazol. La ciprofloxacina resultó más efectiva, con menores efectos colaterales. Conclusiones: La pouchitis es la complicación tardía más común asociada al procedimiento de reservorio pélvico. De etiología poco entendida, el sobrecrecimiento bacteriano puede contribuir al desarrollo de este proceso. La...

Analysis of Pouchitis after Restorative Proctocolectomy / 대한소화기학회지

BACKGROUND/AIMS: Pouchitis is one of the most common and debilitating complications of a restorative proctocolectomy. We aimed to analyze the features of pouchitis after restorative proctocolecomy and to determine the risk factors related to its development. METHODS: A study was undertaken in 169 patients who underwent total proctocolectomy with ileal pouch-anal anastomosis between July 1989 and December 2003. Pouchitis was defined as change of bowel habit, change in stool consistency, hematochezia or abdominal pain, febrile sensation and/or low-grade fever improved by metronidazole or ciprofloxacin without evidence of infectious disease and sphincter damage. RESULTS: Among the 169 patients, patients with ulcerative colitis were 64, familial and attenuated adenomatous polyposis 44, Crohn's disease 2, and synchronous or hereditary non-polyposis colorectal cancer were 59 cases. Overall, pouchitis occurred in 15.9% of the patients. The incidence was 37.5% in ulcerative colitis, 1% in non-ulcerative colitis, and 50% in Crohn's disease. In ulcerative colitis group, most of the pouchitis (60.9%) occurred within 6 months after the operation and the remainder experienced the first attack within 1 year after operation. Three patients progressed to chronic pouchitis. There was no association between pouchitis rate and sex, history of smoking, steroid use, temporary ileostomy construction, involvement of appendix or proximal colon, and evidence of indeterminate colitis. Only age was significantly related to the occurrence of pouchitis. CONCLUSIONS: Pouchitis developed exclusively in ulcerative colitis than other disease groups. Pouchitis occurred most frequently within 6 months after the operation, therefore, it is important to investigate carefully during one year after the operation in patients with ulcerative colitis.

Short- and long-term outcomes of ileal pouch-anal anastomosis for ulcerative colitis

Ileal pouch-anal anastomosis was an important advancement in the treatment of ulcerative colitis. The aim of this study was to determine whether early complications of ileal pouch-anal anastomosis in patients with ulcerative colitis are associated with poor late functional results. PATIENTS AND METHODS: Eighty patients were operated on from 1986 to 2000, 62 patients with ileostomy and 18 without. The early and late complications were recorded. Specific emphasis has been placed on the incidence of pouchitis with prolonged follow-up. RESULTS: The ileostomy was closed an average of 9.2 months after the first operation. Fourteen patients were excluded from the long-term evaluation; 6 patients were lost to regular follow-up, 4 died, and 4 patients still have the ileostomy. Of the 4 patients that died, 1 died from surgical complications. Early complications after operation (41) occurred in 34 patients (42.5 percent). Late complications (29) occurred in 25 patients as follows: 16 had pouchitis, 3 associated with stenosis and 1 with sexual dysfunction; 5 had stenosis; and there was 1 case each of incisional hernia, ileoanal fistula, hepatic cancer, and endometriosis. Pouchitis occurred in 6 patients (9.8 percent) 1 year after ileal pouch-anal anastomosis, 9 (14.8 percent) after 3 years, 13 (21.3 percent) after 5 years, and 16 (26.2 percent) after more than 6 years. The mean daily stool frequency was 12 before and 5.8 after operation. One pouch was removed because of fistulas that appeared 2 years later. CONCLUSIONS: Ileal pouch-anal anastomosis is associated with a considerable number of early complications. There was no correlation between pouchitis and severe disease, operation with or without ileostomy, or early postoperative complications. The incidence of pouchitis was directly proportional to duration of time of follow-up

Pouchitis: extracolonic manifestation of ulcerative colitis?

Pouchitis is the most frequent complication of ileal pouch-anal anastomosis for treatment of ulcerative colitis. There are several possible explanations. Among them, we focus on the one that considers pouchitis as an extracolonic manifestation of ulcerative colitis. The aim of this study was to investigate the association between pouchitis and extra-intestinal manifestations (EIM), which are frequent in these patients. Sixty patients underwent restorative proctocolectomy with an ileal J pouch (IPAA) from September 1984 to December 1998. Pouchitis was defined by clinical, endoscopic, and histologic criteria. The following extra-intestinal manifestations were studied: articular, cutaneous, hepatobiliary, ocular, genitourinary, and growth failure. Thirteen patients, of which 10 were female (76.9 percent), developed one or more episodes of pouchitis. Twelve patients of this group (92.3 percent) presented some kind of extra-intestinal manifestation, 4 pre-operatively (exclusively), 2 post-operatively (exclusively), and 6 both pre- and post-operatively (1.7 per patient). Twenty patients (42.7 percent) of the 47 without pouchitis did not present extra-intestinal manifestations; 10/35 (28.5 percent) of females had pouchitis, compared to 3/35 (12.0 percent) of men. Pouchitis was more frequent among females, though not statistically significant. EIM increases the risk of pouchitis. Pouchitis is related to EIM in 92.3 percent of cases, corroborating the hypothesis that it could be an extracolonic manifestation of ulcerative colitis