Revisión de la clasificación de Hinchey (diverticulitis) y su correlación terapéutica / Hinchey's (Diverticulitis) classification review and it's therapeutic implacations

Resumen La diverticulosis es una entidad que predomina en países occidentales. Su prevalencia aumenta con la edad, presentándose en aproximadamente el 80% de la población mayor de 85 años. Los divertículos colónicos adquiridos son herniaciones saculares de la mucosa y submucosa (pseudodivertículos) y predominan en sigma, en países occidentales; los congénitos poseen las tres capas parietales (divertículos verdaderos) y predominan en colon derecho, en países asiáticos. Aproximadamente un 10%-25% de dichos pacientes con diverticulosis presentarán a lo largo de su vida un cuadro de diverticulitis aguda, representando una de las causas más frecuentes de abdomen agudo (3,8%). Clínicamente, se expresa por dolor abdominal en fosa ilíaca izquierda (excepción en dolicosigma/divertículos congénitos derechos) y pueden presentar complicaciones como flemones, abscesos, pileflebitis, peritonitis, con consiguiente riesgo de vida. La tomografía computada (TC) permite el diagnóstico oportuno, identificación de complicaciones y planificación terapéutica. A dicho fin se establecieron diferentes clasificaciones y modificaciones, siendo la más reconocida la propuesta por Hinchey (modificada por Wasvary y col., Kaiser y col.) y otras estableciendo correlaciones con el tratamiento, como la propuesta por Sartelli y col. El objetivo del presente estudio es realizar una revisión iconográfica de esta última (Sartelli y col.) y evaluar sus implicancias terapéuticas.

Abstract Diverticular disease is an entity with high prevalence in western countries that increases with age, and affects approximately 80% of the population over 85 years of age. Acquired colonic diverticula are saccular mucosal and submucosal herniation (pseudodiverticles) and predominate in sigma, in western countries; the congenital ones possess the three parietal layers (true diverticula) and predominate in right side colon, in Asian countries. Approximately 10%-25% of patients with colonic diverticulosis, in their lifetime will present an episode of acute diverticulitis, which represents one of the most frequent causes of acute abdominal pain (3.8%). Clinically it express by abdominal pain in the left iliac fossa (exception in dolicosigma / right congenital diverticula) and may present complications such as phlegmon, abscesses, pylephlebitis, peritonitis, life threatening conditions. Computed tomography (CT) allows timely diagnosis, identification of complications and therapeutic planning. To this end, several classifications have been used, from which Hinchey's is the most renown (modified by Wasvary et al, Kaiser et al.), and other ones establish therapeutic correlation such as the one proposed by Sartelli et al. The objective of the present study is to make an iconographic review of this last one (Sartelli et al.) and to evaluate its therapeutic implications.

Enfermedad diverticular: mitos y realidades / Diverticular disease: myths and realities

Diverticulosis and diverticular disease of the colon are common conditions in Western countries. The incidence and prevalence of these diseases are increasing and becoming significant for health systems. A growing body of knowledge is shifting the paradigm of the pathogenesis and treatment of diverticular disease. Low-grade inflammation, altered intestinal microbiota, visceral hypersensitivity, and abnormal colonic motility have been identified as factors leading to diverticular disease. The risk of developing diverticulitis among individuals with diverticulosis is lower than 10 to 25%. Studies indicate that diverticular disease may become a chronic disorder in some patients, not merely an acute illness. Contrary to the advice from international guidelines, studies have not shown that a high-fiber diet protects against diverticulosis. The evidence about the use of antibiotics in uncomplicated diverticulitis is sparse and of low quality. In relation to surgery, studies support a more conservative approach to prophylactic surgery in patients with recurrent disease or chronic symptoms. Finally, new pathophysiological knowledge suggests that other treatments may be useful (mesalamine, rifaximin and probiotics). However, more research is necessary to validate the safety, effectiveness and cost-effectiveness of these strategies.

Enfrentamiento actual de la enfermedad diverticular complicada. visión del gastroenterólogo / Current approach to complicated diverticular disease by the gastroenterologist

Prevalence of colonic diverticulosis is increasing, although usually asymptomatic. Acute diverticulitis (AD)is the most frequent complications, afflicting 1-2 percent of cases in the long term. Diagnosis and classification of AD can usually be accomplished by simple clinical manifestations and laboratory tests. Ultrasonography and CT scan are the most frequently used imaging tests to confirm diagnosis and detect complications. Modifications to the classical Hinchey classification have incorporated uncomplicated AD (without abscess or perforation), the most frequent presentation, allowing to suggest therapy according to the severity of the disease. Uncomplicated AD usually has a benign course, does not require hospitalization and there is growing evidence suggesting that antibiotics are not required. Recurrence is uncommon and with low risk. The number of recurrences by itself is no more a valid criterion to indicate surgery and most patients should be managed medically, although there are no drugs with proven utility to modify the risk of recurrence. Complicated AD can be managed with intravenous antibiotics and percutaneous drainage of abscesses. Surgery is indicated in case of free perforation or diffuse peritonitis. There is a growing trend to use laparoscopic approach and perform peritoneal lavage, without resection in the emergency setting. However, many patients will require resective surgery during the follow-up. The classical paradigms that have guided the approach to colonic diverticulosis are being challenged by the lack of evidence, but the new ones still have to be constructed. For now, we must tolerate high levels of uncertainty and heterogeneity in the management of this common condition.

La diverticulosis colónica ha aumentado su frecuencia, es generalmente asintomática y se complica entre 1-2 por ciento a largo plazo, siendo la diverticulitis aguda (DA) la complicación más frecuente. El diagnóstico y categorización de la DA puede realizarse en base a las manifestaciones clínicas y exámenes de laboratorio simple. Las imágenes más utilizadas son la ecotomografía y la tomografía computada. Se han sugerido modificaciones a la clásica clasificación de Hinchey, que incorporan la DA no complicada y permiten sugerir la terapia de acuerdo a la gravedad. La DA no complicada (sin absceso ni perforación) es la presentación clínica más frecuente. Su evolución es benigna, no requiere hospitalización y existe evidencia creciente que cuestiona la utilidad de los antibióticos. La recurrencia es infrecuente y de bajo riesgo. El número de recurrencias no es un criterio válido para indicar la cirugía. La DA complicada puede manejarse con antibióticos intravenosos y drenaje percutáneo de abscesos. La cirugía está indicada en caso de perforación libre o peritonitis difusa. Existe una tendencia creciente a realizar aseo por vía laparoscópica, sin resección. La mayor parte de los pacientes con DA complicada requieren cirugía resectiva durante la evolución, mientras que aquellos con DA no complicada son de manejo médico, aunque no existen fármacos con utilidad demostrada para modificar el riesgo de recurrencia. Los paradigmas que han guiado el enfrentamiento de la diverticulosis colónica están siendo cuestionados por la falta de evidencia, por lo que, por ahora, debemos tolerar altos niveles de incerteza y heterogeneidad en el manejo de esta frecuente patología.