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Experience, Complications and Prognostic Factors of the Ileoanal Pouch in Ulcerative Colitis: An Observational Study
Experiencia, complicaciones y factores pronósticos con el reservorio anal en la colitis ulcerosa. Estudio observacional
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Javier Die, Juan Ocaña
Corresponding author
jocajim@gmail.com

Corresponding author.
, Pedro Abadía, Juan Carlos García, Irene Moreno, Juan Diego Pina, Gloria Rodrígez, José Manuel Devesa
Unidad de Coloproctología, Hospital Universitario Ramón y Cajal, Madrid, Spain
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Received 08 August 2019. Accepted 20 September 2019
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Tables (4)
Table 1. Sociodemographic and Technical Variables.
Table 2. Complications Associated With the Procedure.
Table 3. Causes of Pouch Failure and Time of Appearance.
Table 4. Uni/multivariate Analysis About Risk Factors for Pouch Failure.
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Additional material (1)
Abstract
Introduction

Ileoanal pouch following restorative proctocolectomy is the treatment for ulcerative colitis after failed medical treatment. Our main aim was to evaluate early and late morbidity associated with restorative proctocolectomy. The secondary aim was to assess risk factors for pouch failure.

Methods

A retrospective, observational, single-center study was performed. Patients who had undergone restorative proctocolectomy for a preoperative diagnosis of ulcerative colitis from 1983 to 2015 were included. Early (<30 days) and late (>30 days) adverse events were analyzed. Pouch failure was defined as the need for pouch excision or when ileostomy closure could not be performed. Univariate and multivariate analyses were performed to assess pouch failure risk factors.

Results

The study included 139 patients. One patient subsequently died in the early postoperative period. Mean follow-up was 23 years. Manual anastomoses were performed in 54 patients (39%). Early adverse events were found in 44 patients (32%), 15 of which (11%) had anastomotic fistula. Late adverse events were found in 90 patients (65%), and pouchrelated fistulae (29%) were the most commonly found in this group. Pouch failure was identified in 42 patients (32%). In the multivariate analysis, age >50 years ( P < .01; HR: 5.55), handsewn anastomosis ( P < .01; HR: 3.78), pouch-vaginal ( P = .02; HR: 2.86), pelvic ( P < .01; HR: 5.17) and cutaneous P = .01; HR: 3.01) fistulae were the main pouch failure risk factors.

Conclusion

Restorative proctocolectomy for a preoperative diagnosis of ulcerative colitis has high morbidity rates. Long-term outcomes could be improved if risk factors for failure are avoided.

Keywords:
Restorative proctocolectomy
Ileoanal pouch
Ulcerative colitis
Resumen
Introducción

La proctocolectomía restauradora con reservorio ileoanal es el tratamiento de elección en gran parte de los pacientes con colitis ulcerosa tras el fracaso del tratamiento médico. Nuestro objetivo principal fue analizar la morbilidad asociada a este procedimiento y la viabilidad del reservorio a corto y largo plazo. Como objetivo secundario identificamos los factores de riesgo asociados al fallo del reservorio.

Métodos

Estudio retrospectivo observacional unicéntrico donde se analizan pacientes intervenidos de proctocolectomía total restauradora con reservorio ileoanal tras el diagnóstico de colitis ulcerosa entre los años 1983 y 2015. Se identificaron y analizaron las complicaciones tempranas (< 30 días) y tardías (> 30 días). Se consideró fallo del reservorio la necesidad de extirpación del reservorio o la imposibilidad para reconstruir el tránsito. Se llevó a cabo un análisis univariante y multivariante para identificar los factores asociados al fallo del reservorio ileoanal.

Resultados

Hubo 139 pacientes analizados. Un paciente falleció en el postoperatorio. La mediana de seguimiento fue de 12 años. En 54 pacientes (39%) se realizó anastomosis manual. Presentaron complicaciones inmediatas 44 pacientes (32%), 15 pacientes (11%) con fístula anastomótica. Complicaciones tardías fueron diagnosticadas en 90 pacientes (65%), las más frecuentes fueron las fístulas asociadas al reservorio (29%). Hubo 42 pacientes (32%) con fallo del reservorio. La edad > 50 años (p < 0,01; HR: 5,55), la anastomosis manual (p < 0,01; HR: 3,78), la fístula del reservorio vaginal (p = 0,02; HR: 2,86), la pélvica (p < 0,01; HR: 5,17) y la cutánea (p = 0,01; HR: 3,01) fueron los principales factores de riesgo asociados al fallo del reservorio encontrados en el análisis multivariante.

Conclusión

La proctocolectomía restauradora es una técnica con elevada morbilidad a corto y largo plazo. Controlando los factores de riesgo del fallo del reservorio se podrían mejorar los resultados a largo plazo.

Palabras clave:
Proctocolectomía restauradora
Reservorio ileoanal
Colitis ulcerosa

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