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La preparación intestinal se ha utilizado en cirugía de colon y recto por una variedad de razones, se cree que un colon limpio facilita la manipulación del intestino, permite el paso y disparo de engrapadoras quirúrgicas y permite la colonoscopia intraoperatoria, si es necesario. Sin embargo, el aspecto más estudiado y debatido de la preparación intestinal es su papel en la reducción de la morbilidad quirúrgica, es decir, las infecciones del sitio quirúrgico (ISQ). La cirugía de colon y recto tiene una de las tasas más altas de ISQ reportadas para todos los tipos de cirugía electiva, con revisiones recientes que muestran tasas que varían del 5,4% al 23,2%, con una media ponderada del 11,4%. (1). La preparación mecánica del intestino (PMI) se usó como un medio para disminuir la concentración bacteriana intraluminal con la esperanza de reducir las tasas de infección. Eventualmente, se agregaron antibióticos no absorbibles a las preparaciones intestinales para reducir aún más el contenido bacteriano intestinal(AU)

Bowel preparation has been used in colon and rectal surgery for a variety of reasons. A clean colon is thought to facilitate bowel manipulation, enable passage and firing of surgical staplers, and allow for intraoperative colonoscopy, if needed. The most studied and debated aspect of bowel preparation, however, is its role in reducing surgical morbidity, namely surgical site infections(SSIs). Colon and rectal surgery has among the highest rates of SSIs reported for all types of elective surgery, with recent reviews demonstrating rates varying from 5.4% to 23.2%, with a weighted mean of 11.4%(AU)

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Resumen Por definición, la colitis actínica incluye cambios inflamatorios de la mucosa colorrectal secundarios a radioterapia en cercanía a la región tratada. La localización más frecuente es el recto y la indicación más común de radioterapia corresponde a neoplasias de la región pélvica incluidos el recto, la próstata y el cérvix. Se estima que hasta la mitad de los pacientes que reciben radiación pélvica llega a desarrollar síntomas gastrointestinales asociados. Se presentan dos pacientes con metástasis óseas sacroilíacas y pélvicas secundarias a adenocarcinoma de próstata que recibieron radiación en la región lumbosacra y pélvica, ambos pacientes presentaron episodios de deposiciones con sangre que iniciaron tempranamente posterior a la radioterapia. La colonoscopia mostró eritema y ulceración. En el estudio histopatológico se observó un patrón de colitis isquémica, con núcleo y citomegalia, estroma fibroso con cambios reactivos y abundante infiltrado inflamatorio neutrofílico. Estos hallazgos son característicos de la colitis actínica aguda; sin embargo, la localización cecal no ha sido frecuentemente reportada. Aunque al ser el ciego y el íleon terminal móviles de localización pélvica, se convierten en un factor de riesgo para que estos segmentos anatómicos sean susceptibles al impacto directo de la radioterapia. Esta condición, en la fase aguda, es autolimitada y se suele resolver con medidas de soporte. Es indispensable que el personal involucrado en el manejo de estos pacientes conozca esta entidad y los posibles diagnósticos diferenciales.

Abstract By definition, actinic colitis includes inflammatory changes of the colorectal mucosa secondary to radiation therapy of nearby tissue. The most frequent location is the rectum, and the most common indication for radiation therapy is a pelvic region neoplasm in the rectum, prostate or cervix. It is estimated that up to half of patients receiving pelvic radiation go on to develop associated gastrointestinal symptoms. We present two patients with sacroiliac and pelvic bone metastases secondary to prostate adenocarcinoma who received radiation in the lumbosacral and pelvic region. Both patients developed bloody stools soon after radiation therapy. Colonoscopy showed erythema and ulceration, and histopathology found a pattern of ischemic colitis with nucleus and cytomegalovirus infection, fibrous stroma with reactive changes and abundant inflammatory infiltration of neutrophils. These findings are characteristic of acute actinic colitis, but the cecal location has not been reported frequently. Nevertheless, the pelvic location of the cecum and the terminal ileum puts these anatomical segments at risk from the direct impact of radiation therapy. In the acute phase, this condition, is self-limiting and usually resolves with support measures. It is essential that the personnel involved in the management of these patients be aware of this entity and its possible differential diagnoses.

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Introducción: La colitis isquémica es la forma más común de isquemia intestinal. Es más frecuente en pacientes mayores de 65 años y están reconocidos los factores de riesgo de la enfermedad. Objetivo: Considerar el diagnóstico precoz de la enfermedad, mediante la realización de estudios diagnósticos determinados, en un paciente en quien se identifican factores de riesgo para la enfermedad. Presentación del caso: Se presenta un paciente con rectorragia. Al interrogatorio y examen físico se recogen factores de riesgo para la colitis isquémica. El diagnóstico se confirma por colonoscopía y las pruebas radiológicas ayudan a establecer la causa y el lugar de la isquemia. Conclusiones: El reconocimiento de factores de riesgo para la colitis isquémica permitió la sospecha de la enfermedad. Las pruebas diagnósticas, realizadas en un período precoz confirmaron el diagnóstico y permitieron buena respuesta al tratamiento(AU)

Introduction: Ischemic colitis is the most common form of intestinal ischemia. It is frequently observed in patients older than 65 years, and the risk factors of the disease are already known. Objective: To consider the early diagnosis of the disease in a patient in whom risk factors for the disease are identified after performing specific diagnostic tests. Case Presentation: A patient with rectal bleeding is presented. On questioning and physical examination, risk factors for ischemic colitis are identified. The diagnosis is confirmed by colonoscopy, and the radiological tests permitted to identify the cause and location of the ischemia. Conclusions: The identification of risk factors for ischemic colitis allowed to think on the possibility of the disease. Diagnostic tests, performed in an early period, confirmed the diagnosis and made a good response to treatment possible(AU)

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Introducción: El consumo de cocaína es un problema mayor a nivel mundial; los usuarios crónicos presentan complicaciones médicas graves que afectan el aparato vascular, los cuales puedenderivar en accidentes isquémicos serios. A continuación presentamos un caso de perforación intestinal secundaria a colitis isquémica por uso de cocaína. Caso clínico: Un hombre de 21 anos de edad con antecedente de uso de cocaína inició su pade cimiento 5 días antes de su ingreso con dolor abdominal, náuseas y vómitos. Con el diagnóstico de perforación de víscera hueca se realizó una laparotomía exploradora, en la cual se encontró una perforación en la cara anterior del ciego. Se realizó una hemicolectomía derecha con una ileostomía y una fístula mucocutánea de colon transverso. Discusión: La causa de las perforaciones es la isquemia local en la mucosa y la necrosis parietal. En este paciente obtuvimos una prueba de orina positiva para cocaína; además, con el ante cedente de uso intenso de esta sustancia y el resultado en el reporte histopatológico pudimos llegar a este diagnóstico. Conclusión: La colitis isquémica asociada a uso de cocaína debe ser considerada como diagnós tico diferencial en pacientes jóvenes con dolor abdominal agudo y/o sangrado rectal.

Introduction: Cocaine use is a major problem worldwide. Chronic users have serious medical complications that affect the vascular system, which can lead to serious ischemic events. We describe a case of intestinal perforation secondary to ischemic colitis caused by cocaine. Case report: A 21-year-old man with a history of cocaine started 5 days before with abdominal pain, nausea and vomiting. With a diagnosis of a perforated intestine, a exploratory laparo tomy was performed, in which a perforation of the anterior wall of the cecum was found. A right hemicolectomy with ileostomy and a mucocutaneous fistula of the transverse colon were carried out. Discussion: Perforations are caused by local ischemia of the mucosa and parietal necrosis. In this patient, a urine test for cocaine was positive, in addition to the history of intensive use of this substance and a pathology report. Conclusion: Ischemic colitis associated with cocaine use should be considered as a differential diagnosis in young patients with acute abdominal pain and/or rectal bleeding.

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Se presenta el caso de un varón de 66 años en post-operatorio de cirugía de Bentall y reemplazo de válvula aórticapor prótesis metálica, anticoagulación con warfarina, que presenta un episodio de sangrado digestivo bajo secundarioa colitis isquémica localizada con INR elevado, sufriendo descompensación hemodinámica. Se realizó tratamientocon concentrado de protrombina humana con adecuada respuesta.

We present the case of a 60-year-old male patient anticoagulated with warfarin who presented with lowergastrointestinal bleeding and hemodynamic instability due to ischemic colitis with high INR after being surgicallyintervened with Bentall´s procedure and aortic valve replacement with a metallic prosthesis. Treatment withprothrombin complex concentrate was started with good response.

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Objective: To identify risk factors, diagnosis and prognosis associated with ischemic colitis, focusing mainly on patients undergoing surgery. Materials and methods: This retrospective study included all patients admitted to the Centro Hospitalar de São João - E. P. E., diagnosed with ischemic colitis during the period from 2012 to 2013. Results: The study included 154 patients; 118 were undergoing medical treatment, with a 12% mortality rate, and 36 were undergoing surgery, with a 61% associated mortality rate. Hypertension was the most common risk factor in both groups. The presence of a large num- ber of cardiovascular risk factors in both groups, such as hypertension and dyslipidemia, was recorded, but we still found no direct relationship with development of ischemic coli- tis. Comorbidities that affect blood flow, such as the presence of thrombi or aneurysms, do provide a worse prognosis and therefore require a more aggressive treatment. Conclusion: The diagnosis of ischemic colitis is not always immediately established due to a nonspecific presentation. Surgical treatment should be reserved for severe cases with a worse prognosis associated.

RESUMO Objetivos: Identificar fatores de risco, diagnóstico e prognóstico associados à colite isquémica, incidindo mais em doentes submetidos à cirurgia. Materiais e métodos: O estudo retrospectivo incluiu todos os doentes admitidos no Centro Hospitalar de São João-E. P. E. com diagnóstico de colite isquémica durante o período de 2012 a 2013. Resultados: O estudo incluiu 154 doentes; desses, 118 foram submetidos a tratamento médico, com uma taxa de mortalidade de 12%, e 36 foram submetidos a tratamento cirúrgico, com uma taxa de mortalidade associada de 61%. Hipertensão arterial foi o fator de risco mais comum em ambos os grupos. Foi registada a presença de grande número de fatores de risco cardiovasculares em ambos os grupos, como hipertensão arterial e dislipidemia, mas ainda não foi encontrada nenhuma relação direta com o desenvolvimento de colite isquémica. Comorbilidades que afetam o fluxo sanguíneo, como a presença de trombos ou aneurismas, fazem prever um pior prognóstico e, por isso, exigem maior agressividade no tratamento. Conclusão: O diagnóstico de colite isquémica nem sempre é imediato, devido a uma apresentação pouco específica. O tratamento cirúrgico deverá ser reservado para casos mais severos, tendo pior prognóstico associado.

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Objetivo: colite isquêmica após colonoscopia é evento raro. Vamos relatar dois pacientes que tiveram esta evolução. Apresentação - Caso 1: paciente do sexo feminino, 67 anos de idade, DPOC compensado, foi submetida à colonoscopia para prevenção de CCR. Tinha relato de cirurgia pélvica prévia, o preparo de cólon estava bom, os parâmetros fisiológicos permaneceram normais durante procedimento, que foi longo, difícil e com grande distensão gasosa. Seis horas após a alta hospitalar sem eventualidade, iniciou sangramento vivo pelo ânus, que evoluiu com dor abdominal agravada 20 horas após. Abdome flácido, porém doloroso à palpação profunda no quadrante inferior esquerdo. CT abdominal mostrou espessamento de parede do reto e do sigmoide e coágulos em seu interior. Evoluiu bem com tratamento conservador. Caso 2: paciente do sexo feminino, 82 anos de idade foi submetida à colonoscopia para procura de tumor sincrônico em pré-operatório de adenocarcinoma de sigmoide. Mucosectomia de adenoma plano de sigmoide foi realizada, seguida de tatuagem com nanquim acima e abaixo da lesão neoplásica no sigmoide. Procedimento realizado sem eventualidade, embora, ao cabo de 3 horas, tenha evoluído com dor, distensão abdominal e suboclusão em nível do tumor primário, confirmada por rotina radiológica. Admitida ao hospital, tratada de forma conservadora sem, no entanto, descompressão colônica. Evoluiu em 20 horas com sinais de irritação peritoneal e laparotomia exploradora, e mostrou se tratar de colite isquêmica confirmada em hemicolectomia direita. Conclusão: para evitarmos colite isquêmica após colonoscopia, o paciente deverá ter alta com o mínimo de distensão possível após o procedimento.

Introduction: ischemic colitis following colonoscopy is rare. We report two cases after uneventful colonoscopy. Presentation - Case 1: a 67 year old white female with COPD was submitted to screening colonoscopy. She had a previous pelvic surgery. The bowel was well prepared. The blood pressure was kept normal during the procedure that was difficult, time consuming with hyperinflation. Beside this, she was discharged without complain. Six hour later she started to pass bright red blood from the rectum and complaining of abdomen pain that got worse 20 hour later. At this time, the abdomen was soft to palpation with tenderness on the left lower quadrant of the abdomen. Computed tomography (CT) scans showed diffuse wall thickness of the sigmoid and the rectum with blood clot inside the lumen. High Protein C reactive was observed. She had uneventful recovery 5 days after a conservative treatment. Case 2: a 82 year old white female with an adenocarcinoma of the sigmoid colon was submitted to a colonoscopy to rule out a synchroid tumor. We performed an endoscopic mucosal resection for a benign lesion of the cecum. A tatoo close to a sigmoid tumor was done to facilitate surgery. The procedure was uneventful and she was discharged without complain. Three hours later she was distressed with abdominal distension and pain. The abdomen was soft and the bowel sounds were hyperactive. She underwent a routine chest and abdominal X ray that disclosed only hyperdistension and no free air. Twenty hours later she got worse with clinical sings of peritonitis. Right hemicolectomy was performed for ischemic colitis. Conclusion: we describe an Ischemic coliti following an uneventful colonoscopies. Both patients had reduced blood flow with damage to microvasculature probably due to a high intra luminal pressure related to hyperinflation. On the first case the cause was the long procedure time and in the second a partial colonic obstruction due to a sigmoid tumor. As a risk factor we found only a previous abdominal surgery on the first case. It is important to pay attention to a colonoscopic procedure time, hyperinflation and hyperextension. We always should leave the patient with the least possible amount of gas.

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OBJECTIVES: Vardenafil enhances dilatation of vascular smooth muscle and inhibits platelet aggregation. The purpose of this study was to evaluate the clinical effects of vardenafil and pentoxifylline administration in an experimental model of ischemic colitis. METHODS: Forty female Wistar albino rats weighing 250-300 g were randomized into five experimental groups (each with n = 8) as follows:1) a sham group subjected to a sham surgical procedure and administered only tap water; 2) a control group subjected to a standardized surgical procedure to induce ischemic colitis and administered only tap water; 3) and 4) treatment groups subjected to surgical induction of ischemic colitis followed by the postoperative administration of 5 mg/kg or 10 mg/kg vardenafil, respectively; and 5) a treatment group subjected to surgical induction of ischemic colitis followed by postoperative administration of pentoxifylline at 50 mg/kg/day per day as a single dose for a 3-day period. All animals were sacrificed at 72 h post-surgery and subjected to relaparotomy. We scored the macroscopically visible damage, measured the ischemic area and scored histopathology to determine the severity of ischemia. Tissue malondialdehyde levels were also quantified. RESULTS: The mean Gomella ischemic areas were 63.3 mm2 in the control group; 3.4 and 9.6 mm2 in the vardenafil 5 and vardenafil 10 groups, respectively; and 3.4 mm2 in the pentoxifylline group (p = 0.0001). The mean malondialdehyde values were 63.7 nmol/g in the control group; 25.3 and 25.6 nmol/g in the vardenafil 5 and vardenafil 10 groups, respectively; and 22.8 nmol/g in the pentoxifylline group (p = 0.0001). CONCLUSION: Our findings indicate that vardenafil and pentoxifylline are effective treatment options in an animal model of ischemic colitis. The positive clinical effects produced by these drugs are likely due to their influence on the hemodynamics associated with vascular smooth muscle and platelet functions.

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OBJECTIVES: Vardenafil enhances dilatation of vascular smooth muscle and inhibits platelet aggregation. The purpose of this study was to evaluate the clinical effects of vardenafil and pentoxifylline administration in an experimental model of ischemic colitis. METHODS: Forty female Wistar albino rats weighing 250-300 g were randomized into five experimental groups (each with n = 8) as follows:1) a sham group subjected to a sham surgical procedure and administered only tap water; 2) a control group subjected to a standardized surgical procedure to induce ischemic colitis and administered only tap water; 3) and 4) treatment groups subjected to surgical induction of ischemic colitis followed by the postoperative administration of 5 mg/kg or 10 mg/kg vardenafil, respectively; and 5) a treatment group subjected to surgical induction of ischemic colitis followed by postoperative administration of pentoxifylline at 50 mg/kg/day per day as a single dose for a 3-day period. All animals were sacrificed at 72 h post-surgery and subjected to relaparotomy. We scored the macroscopically visible damage, measured the ischemic area and scored histopathology to determine the severity of ischemia. Tissue malondialdehyde levels were also quantified. RESULTS: The mean Gomella ischemic areas were 63.3 mm2 in the control group; 3.4 and 9.6 mm2 in the vardenafil 5 and vardenafil 10 groups, respectively; and 3.4 mm2 in the pentoxifylline group (p = 0.0001). The mean malondialdehyde values were 63.7 nmol/g in the control group; 25.3 and 25.6 nmol/g in the vardenafil 5 and vardenafil 10 groups, respectively; and 22.8 nmol/g in the pentoxifylline group (p = 0.0001). CONCLUSION: Our findings indicate that vardenafil and pentoxifylline are effective treatment options in an animal model of ischemic colitis. The positive clinical effects produced by these drugs are likely due to their influence on the hemodynamics associated ...

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BACKGROUND: Churg-Strauss is a rare, idiopathic, hypereosinophilic disease characterized by blood, tissue, and systemic vasculitis in patients with a history of asthma or allergic rhinitis. Gastrointestinal manifestations of Churg Strauss appear in a 31-45% of the patients according to some series of studies, abdominal pain being the most frequent symptom followed by diarrhea and bleeding. CLINICAL CASE: Male patient with a history of asthma who presents abdominal pain apparently due to acute appendicitis. During the hospital stay the study protocol is complemented, confirmating the diagnosis of Churg Strauss syndrome with intestinal manifestations. CONCLUSION: Churg Strauss syndrome is a rare vasculitis that may present with intestinal manifestations so it is important to take into consideration the differential diagnosis. There are few cases in the literature associated with this syndrome and acute abdomen, all of them on the poor prognosis of this association.

Antecedentes: la enfermedad de Churg-Strauss es poco común, idiopática, caracterizada por hipereosinofilia en sangre y tejidos, aunada a vasculitis sistémica en pacientes con antecedentes de asma o rinitis alérgica. Las manifestaciones gastrointestinales del síndrome de Churg Strauss se caracterizan por dolor abdominal, seguido de diarrea y hemorragia en 31-45% de los casos. Caso clínico: paciente masculino con antecedente de asma que acudió a consulta por abdomen agudo con probable apendicitis aguda; durante el protocolo de estudio se diagnosticó síndrome de Churg Strauss, con manifestaciones intestinales. Conclusión: el síndrome de Churg Strauss es una vasculitis poco frecuente que puede manifestarse con síntomas intestinales, como en este caso; es importante tenerlo en mente a la hora de los diagnósticos diferenciales. Existen pocos reportes con este síndrome asociado con abdomen agudo, todos ellos con mal pronóstico.

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BACKGROUND: Non-occlusive ischemic colitis appears to be a collection of diseases rather than a single entity. The presumed etiologies are numerous; however, it typically develops spontaneously in the absence of major vasculature occlusion. It includes a wide clinical spectrum ranging from mild to severe forms. Some patients may develop complications and management of this disorder depends on disease severity. OBJECTIVE: Report of two cases and review of the literature. CLINICAL CASE: Two cases are described, both requiring surgery with primary anastomosis. One patient had colonic gangrene that required an open right colectomy and the other a totally laparoscopic left colectomy for a stricture. CONCLUSION: Non-occlusive ischemic colitis is idiopathic. Some patients requiring surgery may be selected to undergo primary anastomosis and laparoscopic surgery.

ANTECEDENTES: la colitis isquémica no oclusiva es una amplia gama de enfermedades en la que los factores asociados con su etiología son numerosos. Las manifestaciones clínicas pueden ir de leves a severas y el tratamiento dependerá de la etiología. OBJETIVO: presentación de dos casos y revisión de la bibliografía médica. Casos clínicos: se describen dos casos clínicos de colitis isquémica, ambos tratados quirúrgicamente con anastomosis primaria. Uno con necrosis colónica que requirió hemicolectomía derecha abierta y el otro hemicolectomía izquierda totalmente laparoscópica por estenosis. CONCLUSIÓN: la colitis isquémica no oclusiva es idiopática. En pacientes quirúrgicos seleccionados puede considerarse la anastomosis primaria y la cirugía laparoscópica.

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Clostridium myonecrosis or gas gangrene is a life-threatening infection characterized by either traumatic or atraumatic etiology. It has been widely described in patients with traumatic open wounds and in immunocompromised patients, including malignancy. A third source can result from natural flora in the gastrointestinal tract after bowel ischemia. This is a rare occurrence and is even less commonly described in the pediatric population. We present a pediatric patient who developed Clostridium septicum myonecrosis as an iatrogenic complication from clindamycin-induced Clostridium difficile ischemic colitis.

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We present the case of an adolescent with ischemic colitis, an infrequent pathology in this age group, worsened in the presence of systemic lupus erythematosus (SLE). The patient, aged 20, was diagnosed SLE at 6. She consulted for fever, abdominal pain in the side and right iliac fossa and diarrhea lasting 48 hours. It was assumed as acute gastroenteritis but given the persistent pain, incoercible vomiting and abdominal distension she was hospitalized. The abdominal X-ray showed distended loops, abundant feces, without air-fluid levels. The ultrasound showed erosions and ulcerations, edema and bleeding in the descending colon submucosal layer. The CT scan evidenced an ischemic lesion in the right colon. Ischemic colitis is a severe condition, infrequent in young individuals. Signs, symptoms, abdominal CT scan and colonoscopy are the elements of choice for the diagnosis.

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Se presenta el caso de una adolescente con colitis isquémica, patología poco frecuente en este grupo etario, que se agrava ante la presencia del lupus eritematoso sistémico (LES). Una paciente de 20 años, con diagnóstico de LES desde los 6 años, consultó por fiebre, dolor abdominal en el flanco y la fosa ilíaca derecha, y diarrea de 48 hs de evolución. Se asumió como gastroenteritis aguda pero, ante la persistencia del dolor, la aparición de vómitos incoercibles y la distensión abdominal, se decidió su internación. La radiografía de abdomen mostró asas distendidas, abundante materia fecal, sin niveles hidroaéreos. La ecografía mostró erosiones y ulceraciones, edema y hemorragia en la submucosa del colon descendente. La tomografía computarizada (TC) evidenció una lesión isquémica en el colon derecho. La colitis isquémica es una patología grave, infrecuente en los jóvenes. Los signos y síntomas, la TC de abdomen y la colonoscopia son los elementos de elección para el diagnóstico.

We present the case of an adolescent with ischemic colitis, an infrequent pathology in this age group, worsened in the presence of systemic lupus erythematosus (SLE). The patient, aged 20, was diagnosed SLE at 6. She consulted for fever, abdominal pain in the side and right iliac fossa and diarrhea lasting 48 hours. It was assumed as acute gastroenteritis but given the persistent pain, incoercible vomiting and abdominal distension she was hospitalized. The abdominal X-ray showed distended loops, abundant feces, without airfluid levels. The ultrasound showed erosions and ulcerations, edema and bleeding in the descending colon submucosal layer. The CT scan evidenced an ischemic lesion in the right colon. Ischemic colitis is a severe condition, infrequent in young individuals. Signs, symptoms, abdominal CT scan and colonoscopy are the elements of choice for the diagnosis.

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Se presenta el caso de una adolescente con colitis isquémica, patología poco frecuente en este grupo etario, que se agrava ante la presencia del lupus eritematoso sistémico (LES). Una paciente de 20 años, con diagnóstico de LES desde los 6 años, consultó por fiebre, dolor abdominal en el flanco y la fosa ilíaca derecha, y diarrea de 48 hs de evolución. Se asumió como gastroenteritis aguda pero, ante la persistencia del dolor, la aparición de vómitos incoercibles y la distensión abdominal, se decidió su internación. La radiografía de abdomen mostró asas distendidas, abundante materia fecal, sin niveles hidroaéreos. La ecografía mostró erosiones y ulceraciones, edema y hemorragia en la submucosa del colon descendente. La tomografía computarizada (TC) evidenció una lesión isquémica en el colon derecho. La colitis isquémica es una patología grave, infrecuente en los jóvenes. Los signos y síntomas, la TC de abdomen y la colonoscopia son los elementos de elección para el diagnóstico.(AU)

We present the case of an adolescent with ischemic colitis, an infrequent pathology in this age group, worsened in the presence of systemic lupus erythematosus (SLE). The patient, aged 20, was diagnosed SLE at 6. She consulted for fever, abdominal pain in the side and right iliac fossa and diarrhea lasting 48 hours. It was assumed as acute gastroenteritis but given the persistent pain, incoercible vomiting and abdominal distension she was hospitalized. The abdominal X-ray showed distended loops, abundant feces, without airfluid levels. The ultrasound showed erosions and ulcerations, edema and bleeding in the descending colon submucosal layer. The CT scan evidenced an ischemic lesion in the right colon. Ischemic colitis is a severe condition, infrequent in young individuals. Signs, symptoms, abdominal CT scan and colonoscopy are the elements of choice for the diagnosis.(AU)

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Intestinal ischemia occurs when mesenteric blood flow is insufficient for the requirements of the intestine. Acute presentation includes acute mesenteric ischemia, usually secondary to occlusion of the superior mesenteric artery, and ischemic colitis due to decreased vascular flow to vulnerable regions of the colon. It usually presents with abdominal pain and non-specific laboratory abnormalities, so it requires a high index of clinical suspicion for early diagnosis and management in order to reduce morbidity and mortality. The following review describes clinical concepts of acute intestinal ischemia, with emphasis on diagnosis and management of these patients.

La isquemia intestinal surge cuando el flujo sanguíneo del territorio mesentérico resulta insuficiente para satisfacer los requerimientos del intestino. El cuadro agudo incluye la isquemia mesentérica aguda, generalmente secundaria a oclusión de la arteria mesentérica superior, y la colitis isquémica debida a disminución del flujo vascular a regiones vulnerables del colon. Se presenta habitualmente con dolor abdominal y alteraciones de laboratorio inespecíficos, por lo que es necesario un alto índice de sospecha clínica para el diagnóstico y manejo precoz con el fin de disminuir su alta morbimortalidad. En la siguiente revisión se exponen principalmente conceptos clínicos acerca de isquemia intestinal aguda, con énfasis en el diagnóstico y manejo de estos pacientes.

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We present the case of an adolescent with ischemic colitis, an infrequent pathology in this age group, worsened in the presence of systemic lupus erythematosus (SLE). The patient, aged 20, was diagnosed SLE at 6. She consulted for fever, abdominal pain in the side and right iliac fossa and diarrhea lasting 48 hours. It was assumed as acute gastroenteritis but given the persistent pain, incoercible vomiting and abdominal distension she was hospitalized. The abdominal X-ray showed distended loops, abundant feces, without air-fluid levels. The ultrasound showed erosions and ulcerations, edema and bleeding in the descending colon submucosal layer. The CT scan evidenced an ischemic lesion in the right colon. Ischemic colitis is a severe condition, infrequent in young individuals. Signs, symptoms, abdominal CT scan and colonoscopy are the elements of choice for the diagnosis.

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