Perforación sigmoidea iatrogénica por prótesis vascular durante un bypass aortobifemoral / Iatrogenic sigmoid perforation by vascular prosthesis during aortobifemoral bypass

Introducción:las fístulas aortoentéricas (FAE) son una grave complicación en el campo de la cirugía vascular con una morbimortalidad muy elevada.Caso clínico:mujer de 58 años con antecedente de cirugía y radioterapia pélvica por cáncer de cérvix que es intervenida por síndrome de Leriche. Se realiza bypass aortobifemoral con desarrollo de FAE secundaria a la perforación iatrogénica del sigma durante la tunelización de la prótesis. Requiere de dos reintervenciones, múltiples antibióticos y un largo posoperatorio para resolver las secuelas.Discusión:el diagnóstico de la FAE requiere un alto nivel de sospecha y su manejo debe ser agresivo de entrada dada la morbimortalidad que se asocia a esta complicación. El antecedente de radioterapia pélvica ha favorecido este hecho y su tratamiento multidisciplinar es indispensable para la resolución del cuadro.(AU)

Introduction:aortoenteric fistulas (AEF) are a serious complication in the field of vascular surgery with a very high morbimortality.Case report:58-year-old woman with a history of surgery and pelvic radiotherapy for cervical cancer who is undergoing surgery for Leriche syndrome. Aortobifemoral bypass is performed with the development of AEFs secondary to iatrogenic perforation of the sigma during tunneling of the prosthesis. The patient requires two reinterventions, many antibiotics and a long postoperative period to resolve the sequelae.Discusion:the diagnosis of AEF requires a high level of suspicion and its management must be aggressive from the outset given the morbidity and mortality associated with this complication. The history of pelvic radiotherapy has favoured this fact and its multidisciplinary treatment is essential for the resolution of this problem.(AU)

Comparison of flipped learning and traditional lecture method for teaching digestive system diseases in undergraduate medicine: A prospective non-randomized controlled trial.

INTRODUCTION: This study examined the effects of a large-scale flipped learning (FL) approach in an undergraduate course of Digestive System Diseases. METHODS: This prospective non-randomized trial recruited 404 students over three academic years. In 2016, the course was taught entirely in a Traditional Lecture (TL) style, in 2017 half of the course (Medical topics) was replaced by FL while the remaining half (Surgical topics) was taught by TL and in 2018, the whole course was taught entirely by FL. Academic performance, class attendance and student's satisfaction surveys were compared between cohorts. RESULTS: Test scores were higher in the FL module (Medical) than in the TL module (Surgical) in the 2017 cohort but were not different when both components were taught entirely by TL (2016) or by FL (2018). Also, FL increased the probability of reaching superior grades (scores >7.0) and improved class attendance and students' satisfaction. CONCLUSION: The holistic FL model is more effective for teaching undergraduate clinical gastroenterology compared to traditional teaching methods and has a positive impact on classroom attendances.

Bowel obstruction secondary to intraluminal migration of the abdominal wall mesh

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Bowel obstruction secondary to intraluminal migration of the abdominal wall mesh.

Eventration is an important public health problem due to its high incidence of around 12-15% in all laparotomies performed. The repair of an eventration has a 5-15% risk of complications. In recent years, the repair with prosthetic material has resulted in additional complications.

Risk Factors for Anastomotic Leak After Colon Resection for Cancer: Multivariate Analysis and Nomogram From a Multicentric, Prospective, National Study With 3193 Patients.

OBJECTIVE: To determine pre-/intraoperative risk factors for anastomotic leak after colon resection for cancer and to create a practical instrument for predicting anastomotic leak risk. BACKGROUND: Anastomotic leak is still the most dreaded complication in colorectal surgery. Many risk factors have been identified to date, but multicentric prospective studies on anastomotic leak after colon resection are lacking. METHODS: Fifty-two hospitals participated in this prospective, observational study. Data of 3193 patients, operated for colon cancer with primary anastomosis without stoma, were included in a prospective online database (September 2011-September 2012). Forty-two pre-/intraoperative variables, related to patient, tumor, surgical procedure, and hospital, were analyzed as potential independent risk factors for anastomotic leak (60-day follow-up). A nomogram was created to easily predict the risk of anastomotic leak for a given patient. RESULTS: The anastomotic leak rate was 8.7%, and widely varied between hospitals (variance of 0.24 on the logit scale). Anastomotic leak significantly increased mortality (15.2% vs 1.9% in patients without anastomotic leak, P < 0.0001) and length of hospitalization (median 23 vs 7 days in uncomplicated patients, P < 0.0001). In the multivariate analysis, the following variables were independent risk factors for anastomotic leak: obesity [P = 0.003, odds ratio (OR) = 2.7], preoperative serum total proteins (P = 0.03, OR = 0.7 per g/dL), male sex (P = 0.03, OR = 1.6), ongoing anticoagulant treatment (P = 0.05, OR = 1.8), intraoperative complication (P = 0.03, OR = 2.2), and number of hospital beds (P = 0.04, OR = 0.95 per 100 beds). CONCLUSIONS: Anastomotic leak after colon resection for cancer is a frequent, relevant complication. Patients, surgical technique, and hospital are all important determining factors of anastomotic leak risk.