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BACKGROUND: Inadequate endoscopic assessment of disease activity might lead to suboptimal treatment of patients with inflammatory bowel disease (IBD). AIMS: We aimed to determine if the implementation of an educational mobile app could help improving the quality of colonoscopy reports in patients with IBD. METHODS: We retrospectively analyzed a consecutive series of colonoscopy reports in patients with IBD during the period 2016-2023. The sample was divided into two groups: before and after the implementation of an educational mobile app (JEDII app ™). The main outcome was the inclusion of validated activity assessment scoring systems and previously stablished reporting required elements. RESULTS: A total of 883 IBD colonoscopy reports were included for analysis; 621 (70.3%) procedures were performed before the implementation of the app and 262 (29.7%) after. An IBD scoring system was included in 201 (32.4%) and 148 (56.5%) colonoscopy reports before and after the adoption of the mobile app, respectively (p < 0.001). The mean number of recommended elements for quality IBD colonoscopy reporting was significantly increased after the app implementation (4.3 vs. 1.9, p < 0.001). Diagnosis of ulcerative colitis, gastroenterologist as endoscopist, endoscopist with IBD clinical interest, and the implementation of the educational mobile app were independently associated with the inclusion of an IBD score in the colonoscopy report. CONCLUSION: The inclusion of scoring systems and recommended elements for quality IBD colonoscopy report significantly increased after the implementation of an educational mobile app. E-health technologies should be further explored to improve quality of care in patients with IBD.

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BACKGROUND: Colorectal cancer (CRC) contributes significantly to cancer mortality worldwide. In an effort to reduce the risk of death, detection of polyps through colonoscopy is crucial. The success of the colonoscopy depends on the diet administered the day before the test. Our aim was to evaluate the efficacy, tolerability, and adverse effects of bowel preparation when using a low-residual diet (LRD) compared to a clear-liquid diet (CLD) the day before a scheduled colonoscopy. METHODS: PubMed/Medline, Embase, the Cochrane Central Register of Controlled Trials (CENTRAL) and Scopus databases were searched. We included studies of patients undergoing a scheduled colonoscopy for CRC screening and surveillance or for diagnostic purposes that compared a LRD with a CLD the day before the colonoscopy. Efficacy, the primary outcome, was evaluated as the rate of adequate bowel preparation. Secondary outcomes were tolerability and adverse effects of bowel preparation. RESULTS: Thirteen RCTs (N = 2587) were included. Patients receiving a LRD compared to a CLD showed no difference in adequate bowel preparations (RR 1.02; 95% CI 0.99-1.05; I2 = 60%). However, the LRD improved patient tolerability (RR 1.17; 95% CI 1.12-1.23; I2 = 66%) and had fewer adverse effects (RR 0.89; 95% CI 0.84-0.94; I2 = 73%) compared to the CLD. Groups using a LRD with 4L of polyethylene glycol in a single dose or a LRD with < 2000 kcal < 32 g of fibres/day had better tolerability. CONCLUSION: Based on these findings, our recommendation is strong in favour of a LRD for bowel preparation of patients undergoing a scheduled colonoscopy. This diet could also be useful as a preoperative colonic preparation, but this requires further research.

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Introducción: El cáncer colorrectal (CCR) es la segunda causa de muerte por cáncer en Argentina. Debido a su alta prevalencia es fundamental normatizar un programa de pesquisa para la prevención y detección temprana. La precisión del test de sangre oculta en materia fecal inmunológico (SOMFi) para pesquisa de CCR en población de riesgo promedio ha demostrado ser adecuada según la bibliografía internacional, no habiendo, sin embargo, información a nivel local. El objetivo es evaluar en nuestro medio la precisión diagnóstica del test de SOMFi en una única ronda para la pesquisa de CCR en pacientes de riesgo promedio. Diseño: Prospectivo de precisión diagnóstica. Material y Método: Se incluyeron pacientes con riesgo promedio que consultaron para realizar una videocolonoscopía (VCC) por pesquisa de CCR en el Hospital Alemán de Buenos Aires, entre el 1 de junio del 2015 y 31 diciembre de 2017. Se excluyeron todos los pacientes con riesgo incrementado para CCR. Todos los pacientes realizaron el test de SOMFi y posteriormente la VCC. Los endoscopistas estaban ciegos para el resultado del test al momento de realizar la VCC. Se evaluó la precisión diagnóstica del test SOMFi para detectar lesiones neoplásicas avanzadas (LNA) calculando la sensibilidad (S), especificidad (E), valor predictivo positivo (VVP) y negativo (VVN), coeficiente de probabilidad positivo (CP+) y negativo (CP-). Se evaluó también la precisión para la detección de adenomas de bajo riesgo, pólipos aserrados y CCR. Resultados: Se incluyeron un total de 300 pacientes; 273 (91%) entregaron la muestra de materia fecal para realizar el test de SOMFi y completaron la VCC. La edad media de los pacientes fue de 56.9 (40-85) años y 54% fueron hombres. Del total de pacientes que realizaron ambos estudios (273), 53 pacientes (19%) presentaron al menos un adenoma de bajo riesgo, en 18 pacientes (6,59%) observamos al menos un adenoma aserrado sésil y en 21 pacientes (7,7%) al menos una lesión neoplásica avanzada (LNA). Solo 4 pacientes (1.5%) presentaron CCR. En cuanto a la precisión diagnóstica del test de SOMFi en una única ronda para detectar LNA observamos una S de 30%, E de 84%, VPP de 13% y un VPN de 94%. Para adenomas de bajo riesgo observamos una S de 13%, E de 84%, VPP de 17%, VPN de 79%. Para adenomas aserrados sésiles observamos una S de 16.7%, E de 87%, VPP de 11% y de VPN 91%. La precisión para el CCR fue la siguiente, S de 75%, E de 83%, VPP 6%, VPN 99%. No se observaron complicaciones post procedimientos. Conclusiones: La precisión diagnóstica del test de SOMFi en nuestro medio es comparable a los resultados internacionales. Sin embargo, la baja precisión observada en una única ronda realza la necesidad de realizarlo de forma anual o bianual para poder optimizar su precisión y lograr programas de pesquisa efectivos.(AU)

Background: Colorectal cancer (CRC) is the second leading cause of cancer death in Argentina. Due to its high prevalence, it is essential to standardize a screening program for prevention and early detection. According to international literature, the accuracy of the immunochemical fecal occult blood test (FIT) for CRC screening in an average-risk population has proven to be adequate, but there is no information at the local level. Objective: To evaluate the diagnostic accuracy of the FIT test in a single round for CRC screening in average-risk patients in our setting. Design: Diagnostic accuracy prospective study. Material and Methods: Average-risk patients who consulted for a CRC screening video colonoscopy (VCC) at the Hospital Alemán of Buenos Aires, between June 1, 2015 and December 31, 2017 were included. All patients with increased risk for CRC were excluded. All patients performed FIT and subsequently VCC. The endoscopists were blind to FIT result at the time of VCC. The diagnostic accuracy of FIT to detect advanced neoplastic lesions (ANL) was evaluated by calculating sensitivity (S), specificity (Sp), positive predictive value (PPV), negative (NPV), positive likelihood ratio (LR+) and negative likelihood ratio (LR-). The accuracy for the detection of low-risk adenomas, serrated polyps and CRC was also evaluated. Results: A total of 300 patients were included; 273 (91%) submitted the stool sample to perform FIT and completed VCC. The mean age of patients was 56.9 (40-85) years and 54% were men. Of the total number of patients who carried out both studies (273), 53 (19%) patients had at least one low-risk adenoma, 18 (6.59%) patients had at least one sessile serrated adenoma and 21 (7.7%) patients had at least one ANL. Only 4 (1.5%) patients presented CRC. The diagnostic accuracy of FIT in a single round to detect ANL was: S 30%, Sp 84%, PPV 13%, NPV 94%; for low-risk adenomas: S 13%, Sp 84%, PPV 17%, NPV 79%; for sessile serrated adenomas: S 16.7%, Sp 87%, PPV 11%, NPV 91% and for CRC: S 75%, Sp 83%, PPV 6%, NPV 99%. No post-procedure complications were observed. Conclusions: The diagnostic accuracy of FIT in our setting is comparable to international results. However, the low precision observed in a single round highlights the need to do it annually or biannually in order to optimize its accuracy and achieve effective screening programs. (AU)

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Post-polypectomy bleeding after colonoscopy with resection of large colorectal polyps can cause significant morbidity (readmission for monitoring, transfusion, repeat endoscopy and therapy) and a significant cost to hospitals and insurers. Nevertheless prophylactic endoscopic measures could reduce risk of post-polypectomy bleeding. Searching in Epistemonikos database, which is maintained by screening 30 databases, we identified two systematic reviews including 10 randomized trials. We combined the evidence using meta-analysis and generated a summary of findings table following the GRADE approach. We concluded prophylactic endoscopic measures could be effective in reducing post-polypectomy bleeding after resection of large colorectal polyps.

Luego de resecar pólipos colorrectales grandes por vía endoscópica, existen medidas hemostáticas profilácticas que podrían disminuir el riesgo de sangrado postpolipectomía, y así evitar nuevos procedimientos, transfusiones u hospitalizaciones innecesarias, con el deterioro en la calidad de vida de los pacientes y el aumento de los costos que esto implica. Utilizando la base de datos Epistemonikos, la cual es mantenida mediante búsquedas en 30 bases de datos, identificamos dos revisiones sistemáticas que incluyen 10 estudios controlados aleatorizados. Los combinamos mediante un metanálisis y generamos tablas de resumen de resultados utilizando el método GRADE. Concluimos que las medidas hemostáticas endoscópicas profilácticas reducen el riesgo de sangrado postpolipectomía luego de resecar pólipos colorrectales grandes.

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OBJECTIVES: The risk of developing metachronous advanced neoplastic lesions (ANLs) during surveillance after resection of sessile serrated adenomas (SSAs) has not been quantified. METHODS: Patients with sporadic SSAs resected between 1 April 2007 and 31 December 2009 who underwent surveillance colonoscopy in our institution were prospectively evaluated. Patients with low-risk adenomas (LRAs), high-risk adenomas (HRAs), and negative index colonoscopy (NIC) during the same period were identified using the pathology database and electronic medical records, and were also included as a comparison cohort. The primary outcome was the comparison of the study groups with regard to incidence of metachronous ANLs during surveillance colonoscopy. RESULTS: A total of 185 patients had SSAs, of whom 75 with 101 resected polyps were finally included. The comparison cohort consisted of 564 patients: 140 LRAs (160 polyps), 87 HRAs (478 polyps), and 337 NICs. The overall mean colonoscopy follow-up was for 54.5 months (±s.d. 14). SSA patients with synchronous HRA on index colonoscopy presented a higher incidence rate of metachronous ANL (12.96 per 1,000 person-months) compared with patients with HRA (5.07 per 1,000 person-months), whereas those with synchronous LRA and without synchronous adenoma on index colonoscopy presented a low incidence rate of metachronous ANL (0 and 1.41 per 1,000 person-months, respectively) similar to LRA (1.47 per 1,000 person-months). Among patients with SSA the 3- and 5-year ANL free-cumulative probability was 64.3 and 32.1% in those with synchronous HRA, 100 and 100% in those with synchronous LRA, and 95.1 and 91.7% if no synchronous adenoma was found. CONCLUSIONS: Among patients with resected sporadic SSAs the risk of developing metachronous ANL is influenced by the presence of synchronous HRA on index colonoscopy. Patients with SSAs and synchronous HRA on index colonoscopy require closer surveillance, whereas those with synchronous LRA and those without synchronous adenomas may be followed up in the same way as those with LRAs.

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El cáncer colorrectal representa una de las primeras causas de muerte por cáncer en todo el mundo y también en la Argentina. En los últimos años la pesquisa de cáncer de colon ha cobrado gran importancia y se ha postulado a la colonoscopia como el patrón de oro. En esta revisión resumimos las evidencias de este método poniendolo en contexto con las complicaciones y desventajas.

Colorectal cancer is one of the leading causes of cancer deathworldwide and also in Argentina. In the past few years colorectalcancer screening has become more popular and colonoscopyhas been postulated as the gold standard. In thisreview we analyzed the evidence supporting this methodin contrast with its complications and disadvantages.

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Colorectal cancer is one of the leading causes of cancer death worldwide and also in Argentina. In the past few years colorectal cancer screening has become more popular and colonoscopy has been postulated as the gold standard. In this review we analyzed the evidence supporting this method in contrast with its complications and disadvantages.

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El cáncer colorrectal representa una de las primeras causas de muerte por cáncer en todo el mundo y también en la Argentina. En los últimos años la pesquisa de cáncer de colon ha cobrado gran importancia y se ha postulado a la colonoscopia como el patrón de oro. En esta revisión resumimos las evidencias de este método poniendolo en contexto con las complicaciones y desventajas.

Colorectal cancer is one of the leading causes of cancer death worldwide and also in Argentina. In the past few years colorectal cancer screening has become more popular and colonoscopy has been postulated as the gold standard. In this review we analyzed the evidence supporting this method in contrast with its complications and disadvantages.

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El cáncer colorrectal representa una de las primeras causas de muerte por cáncer en todo el mundo y también en la Argentina. En los últimos años la pesquisa de cáncer de colon ha cobrado gran importancia y se ha postulado a la colonoscopia como el patrón de oro. En esta revisión resumimos las evidencias de este método poniendolo en contexto con las complicaciones y desventajas.(AU)

Colorectal cancer is one of the leading causes of cancer death worldwide and also in Argentina. In the past few years colorectal cancer screening has become more popular and colonoscopy has been postulated as the gold standard. In this review we analyzed the evidence supporting this method in contrast with its complications and disadvantages.(AU)

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Colorectal cancer is one of the leading causes of cancer death worldwide and also in Argentina. In the past few years colorectal cancer screening has become more popular and colonoscopy has been postulated as the gold standard. In this review we analyzed the evidence supporting this method in contrast with its complications and disadvantages.

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BACKGROUND: Ménétrier's disease is a rare disease of the stomach generally described as hypertrophic gastropathy. Its etiology is unknown and its malignant potential is controversial. Only a few reports supporting its association with gastric cancer have been found. We present a case of gastric cancer associated with Ménétrier's disease. CASE REPORT: We present a 72 year-old-male with epigastric pain and early satiety during the last 5 months. He had been treated with proton pump inhibitors with unfavorable response and began with loss of weight and asthenia. An upper digestive endoscopy showed an erythematous nodular gastric mucosa, with enlarged folds. An abdominal CT scan demonstrated a circumferential parietal thickening of the gastric wall and adenopathies. A gastric macrobiopsy done by endoscopic mucosal resection evidenced a mucin infiltrating adenocarcinoma with invasion of the lamina propria. Subtotal gastrectomy was done. The histology showed a stomach with changes compatible with Ménétrier's disease and diffuse infiltration by a highly undifferentiated adenocarcinoma (plastic linitis). CONCLUSION: A patient with diffuse gastric adenocarcinoma and Ménétrier's disease is reported.

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