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INTRODUCTION: Endoscopy plays a fundamental role in inflammatory bowel disease (IBD), and becomes essential in diagnosis, treatment monitoring, and detection and management of complications. MATERIALS AND METHODS: The Pan American Crohn's and Colitis Organization (PANCCO) and the Inter-American Society of Endoscopy (SIED) appointed 22 Latin American experts in IBD to develop a consensus study using the modified Delphi method, based on the best available evidence. A working group of 22 members from 9 countries identified 15 topics and formulated 98 statements, who participated in 2 rounds of voting. It was defined as agreement of ≥80% of experts for each statement. RESULTS: After the voting of all the statements, 8 statements were obtained that did not reach 80% consensus among the participants, so the questions were reconsidered in the Coordinating Committee of the consensus with the participation of the expert reviewers of these questions and 7 final statements were voted again by all the experts in a second round and 1 was eliminated with consensus. After two rounds of voting, the experts reached consensus with literature review with the best available evidence, the most important issues were developed with scientific evidence supporting each of the statements around the topic of endoscopy in IBD. CONCLUSIONS: Consensus statements were developed and based on the best available evidence about endoscopy in inflammatory bowel disease.

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Biliary ileus is a mechanical intestinal obstruction characterized by symptoms such as abdominal pain, jaundice and fever. The treatment of choice in these cases is associated with a surgical approach according to the clinical condition of the patient. It is important to study this pathology since its timely diagnosis and treatment are essential to avoid serious complications associated with high morbidity and mortality. This article describes a case related to biliary ileus.

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OBJECTIVE: This study aimed to establish the association between HLA-A, B, DR genotypes and gastrointestinal variables in patients with SpA without inflammatory bowel disease (IBD). METHODS: Retrospective study of 91 patients with SpA and 401 healthy controls, with typing by Illumina Sequencing/PacBio and LIFECODES HLA-PCR/SSO multiplex sequencing technology. The presence of gastrointestinal symptoms was evaluated by administering a survey, and those who presented 2 or more symptoms were taken for clinical evaluation by rheumatology and gastroenterology, colonoscopy and histopathological study. (Ethics committee approval). RESULTS: The 59,3% of the patients were men, with a mean age of 43,9±11.4 years; 80,2% were classified as ankylosing spondylitis. 14, 28 and 19 genotypes for the HLA-A*, HLA-B* and HLA-DR* loci were identified in both groups, of which a relationship with gastrointestinal symptoms was identified: A*26, A*29 and B*27 were associated to abdominal pain, DRB1*11 and DRB1*16 with abdominal distention, A*30, B*38, DRB1*13 and DRB1*14 with weight loss, B*40 with diarrhea >4 weeks, and presence of mucus in the stools with A*02 and DRB1*11 (p<0.05). Furthermore, the presence of B*15 had a statistical relationship with intolerance to some food, highlighting the B*27 genotype in relation to grains and dairy products, A*23 with grains, vegetables and meats, and B*49 with vegetables and dairy (p<0.05). Regarding the endoscopic variables, macroscopic changes were found in the ileum mucosa related to A*02, B*48, DRB1*14 and the relationship between B*27 and ulcers at this level should be highlighted. Macroscopic changes in the sigmoid colon with B*48 and the rectum with A*30. In microscopic changes, inflammatory alterations of the ileum are mentioned with genotypes DRB1*07, DRB1*13 and DRB1*14, a genotype that is related to changes in the ileum both endoscopically and histologically (p<0.05). CONCLUSIONS: These findings indicate a potential genetic predisposition related to HLA genotypes that may increase the likelihood of food intolerance, gastrointestinal symptoms, and even visible and microscopic changes, specifically in the ileal tissue. The study highlights the presence of B*27 and other noteworthy HLA class I and class II genes (such as DRB1*14) in the diverse Colombian population.

OBJETIVO: Establecer la asociación entre genotipos HLA-A, B, DR y variables gastrointestinales en pacientes con EspA, sin enfermedad inflamatoria intestinal (EII). MÉTODOS: Estudio retrospectivo de 91 pacientes con EspA y 401 controles sanos, con tipificación por tecnología de secuenciación Illumina Sequencing/PacBio, y LIFECODES HLA-PCR/SSO multiplex. Se evaluó la presencia de síntomas gastrointestinales por aplicación de una encuesta, y, aquellos que presentaran dos o más síntomas, fueron llevados a valoración clínica por reumatología y gastroenterología, colonoscopia y estudio histopatológico. (Aprobación del Comité de Ética, HMC, 2022 - 2020). RESULTADOS: El 59,3% de los pacientes fueron hombres, con edad media de 43,9 ± 11,4 años. El 80,2% se clasificó como espondilitis anquilosante. Se identificaron en ambos grupos 14, 28 y 19 genotipos para los loci HLA-A*, HLA-B* y HLA-DR*, de los cuales se identificó relación con síntomas gastrointestinales: A*26, A*29 y B*27, con dolor abdominal; DRB1*11 y DRB1*16, con distensión abdominal; A*30, B*38, DRB1*13 y DRB1*14, con pérdida de peso; B*40, con diarrea >4 semanas y presencia de moco en las deposiciones con A*2 y DRB1*11 (p<0,05). Además, la presencia de B*15, tuvo relación estadística con intolerancia a algún tipo de alimento, a resaltar el genotipo B*27, en relación con granos y lácteos; A*23 con granos, verduras y carnes; y el B*49, con verduras y lácteos (p<0,05). Frente a las variables endoscópicas, se encontraron cambios macroscópicos en la mucosa de íleon relacionados con A*02, B*48, DRB1*14 y, a destacar, la relación B*27 con úlceras a este nivel. Cambios macroscópicos en colon sigmoides con B*48 y en recto con A*30. En cambios microscópicos, se mencionan alteraciones inflamatorias de íleon con genotipos DRB1*07, DRB1*13 y DRB1*14, genotipos que se relaciona a cambios en íleon tanto endoscópica e histológicamente (p<0,05). CONCLUSIONES: Estos resultados sugieren una posible susceptibilidad genética asociada al HLA, con genotipos que pueden predisponer a intolerancia alimentaria, síntomas gastrointestinales, e incluso, a cambios macroscópicos e histológicos, particularmente en tejido de íleon, entre los cuales está presente el B*27, pero resaltan otros interesantes en HLA clase I, como clase II (DRB1*14), en una población de alto mestizaje como la colombiana.

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OBJECTIVE: To compare the diversity and composition of the gastrointestinal microbiome of patients with SpA. METHODS: MiSeq sequencing of the V3-V4 region of the 16S ribosomal RNA gene was performed on DNA isolated from stool. Patients with concurrent SpA and IBD were excluded. Differences were assessed for richness and diversity indices by QIIME 2™. Differences between means >0,2% with a p-value<0,05 were assumed significant. Institutional Ethics Committee endorsement. RESULTS: 69 individuals included, 49 with SpA (ankylosing spondylitis-AS 72,9%, psoriatic arthritis-PsA 18,8%, reactive arthritis-ReA 8,3%) 5 positive controls-dysbiosis and 15 controls-eubiosis. Conventional treatment in 42,9%, anti-IL-17 16,3% and anti-TNF 40,8%. By subtype, statistically significant differences in favour of AS were found for the diversity indices. AS vs PsA there was a difference in favour of AS for Clostridium clostridioforme (p=0,002), Gemmiger formicilis (p=0,009), Roseburia inulivorans (p=0,008) and Lachnospira pectinoschiza. AS vs ReA there was a difference in favour of AS for L. pectinoschiza (p=0,009), Ruminococcus callidus (p=0.006), Clostridium ruminantium (p=0.031); G. formicilis (p=0,034). Diversity and richness showed differences in patients with high activity for Simpson's and Pielou's indices. In high activity, lower enrichment of Bacteroides eggerthii (p= 0,0003), C. ruminantium (p= 0,026) and Alistipes putredinis (p=0,035) was found. The number of ASV was higher in the anti-IL-17 vs conventional group (p=0.025) and a trend between anti-IL-17 vs anti-TNF (p=0.09). In anti-TNF there was a lower proportion for C. clostridioforme (p=0.023), G. formicilis (p=0.030) and R. callidus (p= 0.003). In anti IL-17, Alistipes indistinctus (p= 0.012) was decreased. CONCLUSIONS: There are differences in microbial diversity for SpA subtypes. The level of disease activity is plausible to influence the composition of the faecal microbiota. Anti-TNFα treatment may influence the microbiome environment favouring restoration of the gut microbiota, while anti-IL-17 may maintain an inflammatory environment.

OBJETIVO: Comparar la diversidad y composición del microbioma gastrointestinal de pacientes con EspA. MÉTODOS: La secuenciación MiSeq de la región V3-V4 del gen ARN ribosomal 16, se realizó en ADN aislado de heces. Se excluyeron pacientes con EspA y EII simultánea. Se evaluaron diferencias para los índices de riqueza y diversidad por medio de QIIME 2™. Las diferencias entre medias> 0,2%, con un valor de p< 0,05, se asumieron significativas. Aval del Comité de Ética Institucional. RESULTADOS: 69 individuos incluidos, 49 con EspA (espondilitis anquilosante-EA 72,9%, artritis psoriásica-APs 18,8%, artritis reactiva-ARe 8,3%), cinco controles positivos-disbiosis y 15 controles-eubiosis. El tratamiento convencional en 42,9%, anti-IL-17 16,3%, y anti-TNF 40,8%. Por subtipo-EasP, se encontraron diferencias estadísticamente significativas a favor de EA para los índices de diversidad. Entre EA vs APs, hubo diferencia a favor de EA para Clostridium clostridioforme (p=0,002), Gemmiger formicilis (p=0,009), Roseburia inulivorans (p=0,008) y Lachnospira pectinoschiza. Entre EA vs ARe hubo diferencia a favor de EA para L. pectinoschiza (p=0,009), Ruminococcus callidus (p = 0,006), Clostridium ruminantium (p=0,031); G. formicilis (p=0,034). La diversidad y riqueza mostraron diferencias en pacientes con alta actividad para los índices de Simpson y Pielou. En alta actividad, se encontró menor enriquecimiento de Bacteroides eggerthii (p=0,0003), C. ruminantium (p= 0,026) y Alistipes putredinis (p= 0,035). El número de ASV fue superior en el grupo de anti IL-17 vs convencional (p=0.025), y una tendencia entre anti IL-17 vs anti-TNF (p=0,09). En anti TNF hubo menor proporción para C. clostridioforme (p=0,023), G. formicilis (p=0,030) y R. callidus (p= 0,003). Y en anti IL-17, Alistipes indistinctus (p= 0,012), estuvo disminuida. CONCLUSIONES: Existen diferencias en la diversidad microbiana para los subtipos de EspA. El nivel de actividad de la enfermedad es plausible para influir en la composición de microbiota fecal. El tratamiento con anti-TNFα, puede influenciar el ambiente del microbioma favoreciendo la restauración de la microbiota intestinal, mientras los anti IL-17 podrían mantener un ambiente inflamatorio.

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ABSTRACT Introduction: Endoscopy plays a fundamental role in inflammatory bowel disease (IBD), and becomes essential in diagnosis, treatment monitoring, and detection and management of complications. Materials and methods: The Pan American Crohn's and Colitis Organization (PANCCO) and the Inter-American Society of Endoscopy (SIED) appointed 22 Latin American experts in IBD to develop a consensus study using the modified Delphi method, based on the best available evidence. A working group of 22 members from 9 countries identified 15 topics and formulated 98 statements, who participated in 2 rounds of voting. It was defined as agreement of ≥80% of experts for each statement. Results: After the voting of all the statements, 8 statements were obtained that did not reach 80% consensus among the participants, so the questions were reconsidered in the Coordinating Committee of the consensus with the participation of the expert reviewers of these questions and 7 final statements were voted again by all the experts in a second round and 1 was eliminated with consensus. After two rounds of voting, the experts reached consensus with literature review with the best available evidence, the most important issues were developed with scientific evidence supporting each of the statements around the topic of endoscopy in IBD. Conclusions: Consensus statements were developed and based on the best available evidence about endoscopy in inflammatory bowel disease.

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Abstract Introduction: For several reasons, a patient may be taken to a colostomy for closure as soon as possible. However, their treatment may vary, and predicting adequate continence after colostomy closure can be difficult. The objective is to characterize preoperative manometry because, in Colombia, few cases describe its usefulness. Methods: A descriptive cross-sectional study of adult patients treated in two gastroenterology centers in Colombia between 2018 and 2020. Results: Of 316 patients, 13 were indicated manometry before colostomy closure, predominantly women (69%), with an average age of 51.69 years (standard deviation: 24.18). When evaluating the basal pressures of the anal sphincter, we noted 68% hypotonia, 16% hypertonia, and 16% normal pressures. The voluntary contraction test was abnormal in 25%, and a pattern of dyssynergic defecation was observed in 30%, all with type III patterns. The inhibitory rectoanal reflex was present in 92%, with an abnormal balloon expulsion test in 100% of patients. More than 70% of patients persisted with the colostomy in situ after the first year of construction and 30% beyond 36 months. Conclusions: The present study posits questions about the cost-effectiveness of anorectal manometry before colostomy closure, which requires corroboration by studies with more patients and more robust methodological designs.

Resumen Introducción: Hay varias razones por las que un paciente puede ser llevado a una colostomía con el objetivo de cerrarla lo antes posible, pero su tratamiento puede variar, y predecir una adecuada continencia posterior al cierre de la colostomía puede ser difícil. Se plantea como objetivo realizar una caracterización de la manometría prequirúrgica debido a que en Colombia hay pocos casos que describan su utilidad. Metodología: Estudio observacional descriptivo de corte transversal en pacientes adultos atendidos en dos centros de gastroenterología en Colombia entre el 2018 y el 2020. Resultados: De 316 pacientes, 13 tenían indicación de manometría previo a cierre de colostomía, predominantemente mujeres (69%), con una edad promedio de 51,69 años (desviación estándar: 24,18). Al evaluar las presiones basales del esfínter anal, se evidenció 68% de hipotonía, 16% de hipertonía y 16% de presiones normales. La prueba de contracción voluntaria fue anormal en el 25%, se observó un patrón de disinergia defecatoria en el 30%, todas con patrón tipo III. El reflejo rectoanal inhibitorio estuvo presente en el 92%, con prueba de expulsión de balón anormal en el 100% de los pacientes. Más del 70% de los pacientes persistían con la colostomía in situ después del primer año de su construcción y 30% más allá de 36 meses. Conclusiones: El presente estudio genera cuestionamientos acerca la costo-efectividad de la manometría anorrectal previa al cierre de colostomía, lo cual requiere ser corroborado por estudios con una mayor cantidad de pacientes y diseños metodológicos más robustos.

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RESUMEN El íleo biliar es una causa obstrucción mecánica intestinal caracterizada por presentar síntomas como dolor abdominal, ictericia y fiebre. El tratamiento de elección en estos casos está asociado al abordaje quirúrgico acorde al estado clínico del paciente. Es importante estudiar esta patología ya que su diagnóstico y tratamiento oportunos son fundamentales para evitar complicaciones graves asociadas a una gran morbilidad y mortalidad. El presente artículo describe un caso relacionado al íleo biliar.

ABSTRACT Biliary ileus is a mechanical intestinal obstruction characterized by symptoms such as abdominal pain, jaundice and fever. The treatment of choice in these cases is associated with a surgical approach according to the clinical condition of the patient. It is important to study this pathology since its timely diagnosis and treatment are essential to avoid serious complications associated with high morbidity and mortality. This article describes a case related to biliary ileus.

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Introduction: There is no clarity about manometric findings in patients with proctalgia fugax; evidence shows different results. This study aims to evaluate dyssynergic defecation through anorectal manometry in Colombian patients in two gastroenterology centers in Bogotá, Colombia. Materials and methods: A cross-sectional descriptive observational study in adult patients with proctalgia fugax undergoing anorectal manometry and treated in two gastroenterology centers in Bogotá between 2018 and 2020. Results: 316 patients were included, predominantly women (65%), with a median age of 45.2 (range: 18-78; standard deviation [SD]: 28.3). Four percent of patients had hypertonicity, 50% were normotonic, and 46% were hypotonic. Regarding manometric parameters, 50% had normal pressure, and 46% had anal sphincter hypotonia; 76% had a normal voluntary contraction test. Dyssynergic defecation was documented in 5% of patients, and the most frequent was type I, followed by type III. A rectoanal inhibitory reflex was identified in all patients, 42% with altered sensory threshold and 70% with abnormal balloon expulsion. There was an agreement between the results of the anorectal manometry and the subjective report of the digital rectal exam by the head nurse who performed the procedure. Conclusions: The data obtained in the present study suggest that proctalgia is not related to the elevated and sustained basal contracture of the sphincter but neither to the alteration in voluntary contraction since most patients have typical values.

Introducción: Actualmente, no hay claridad acerca de los hallazgos manométricos en pacientes con proctalgia fugaz, y la evidencia muestra diferentes resultados. Se plantea como objetivo en el presente estudio evaluar la presencia de disinergia defecatoria con manometría anorrectal en pacientes colombianos en dos centros de gastroenterología en Bogotá, Colombia. Metodología: Estudio observacional descriptivo de corte transversal en pacientes adultos sometidos a manometría anorrectal con proctalgia fugaz y atendidos en dos centros de gastroenterología de la ciudad de Bogotá entre el 2018 y el 2020. Resultados: Se incluyó a 316 pacientes, predominantemente mujeres (65%), con mediana de edad 45,2 (rango: 18-78; desviación estándar [DE]: 28,3). El 4% de los pacientes presentaban hipertonicidad, el 50% eran normotónicos y el 46%, hipotónicos. En cuanto a parámetros manométricos, el 50% tenía presión normal y el 46%, hipotonía de esfínter anal. El 76% tuvo una prueba de contracción voluntaria normal. En 5% pacientes se documentó disinergia defecatoria, y la más frecuente fue el tipo I, seguido del tipo III. En todos los pacientes se identificó reflejo recto anal inhibitorio, 42% con alteración en umbral sensitivo y 70% con expulsión de balón anormal, y hubo concordancia entre los resultados de la manometría anorrectal y el reporte subjetivo del tacto rectal de la jefe de enfermería que realizó el procedimiento. Conclusiones: Los datos obtenidos en el presente estudio sugieren que la proctalgia no está relacionada con la contractura basal elevada y sostenida del esfínter, pero tampoco con la alteración en la contracción voluntaria, ya que la mayoría de los pacientes presentan valores normales.

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INTRODUCTION: Tofacitinib is indicated in patients with moderate to severe ulcerative colitis (UC); however, given its rapid onset of action, it may constitute an alternative in patients with hospitalized severe acute UC. There are few data on this indication in the literature. The aim of this study was to describe the efficacy and safety of tofacitinib in the management of patients with hospitalized UC, as well as its clinical characteristics and other treatment patterns. MATERIALS AND METHODS: Descriptive observational study of adults and children with CUAG treated with tofacitinib between June 2019 and December 2022 in Colombia. Sociodemographic and clinical variables were collected, therapeutic response was evaluated in different periods of time and descriptive analysis of quantitative and qualitative variables was performed. RESULTS: Six patients (five adults and one pediatric), mean age 33.2 (SD: 8.5) years, with CUAG. Symptom remission was obtained in 100% of patients at day 7 after tofacitinib initiation. In three patients information was obtained beyond 6 months, with 100% clinical, biochemical, and endoscopic remission and without requiring colectomy. In the case of the pediatric patient, symptom remission was achieved one week after starting tofacitinib, remaining in clinical, biochemical and endoscopic remission beyond 6 months. No serious adverse events were reported in any of the cases. CONCLUSIONS: Tofacitinib represents a rescue therapeutic alternative in CUAG, with rapid clinical response, adequate tolerance and less need for colectomy, being sustained for periods beyond 6 months.

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INTRODUCTION: There are no studies on efficacy of tofacitinib for moderate-severe ulcerative colitis (UC) in pediatric patients in Latin America. The aim of this study was to describe the efficacy and safety, in real world, treated with tofacitinib in our setting. MATERIALS AND METHODS: Case series of pediatric patients with UC who received treatment with tofacitinib in induction phase for 8 weeks and then maintenance therapy between November 2021 and February 2023. RESULTS: Four female patients, median age 14.5 (SD 2.1; RIQ 12.5-16.5) years, all with prior biologic exposure, all 4 with prior use of anti-TNF, and 2/4 with prior use of anti-integrin. Clinical, biochemical and endoscopic remission was obtained in 3/4 at induction. Information was obtained from 3 patients in 6-month maintenance, 2/3 remained in clinical, biochemical and endoscopic remission and 1/3 has not achieved biochemical or endoscopic remission. Information was obtained from 1 patient in 12-month maintenance, achieving clinical and biochemical remission, however, endoscopic remission has not been achieved. One patient was initiated for severe acute UC with risk of colectomy, with significant improvement after 7 days, reaching therapeutic objectives at induction. No serious adverse events were reported in any of the cases. CONCLUSIONS: Efficacy and safety are demonstrated with tofacitinib in pediatric patients. With high percentage of response in induction treatment, sustained over time, and safe. In the context of severe acute hospitalized UC, it has a role as a potential rescue therapy due to its rapid action.

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Sjögren's syndrome is a systemic autoimmune disease characterized by dry eyes and mouth due to the involvement of exocrine glands. However, it can manifest with GI symptoms that cover a broad spectrum from esophageal and intestinal dysmotility, achalasia, hypochlorhydria, and chronic atrophic gastritis to pancreatic enzyme deficiency, biliary dysfunction, and liver cirrhosis, which varies in its clinical manifestations and is often associated with erroneous approaches. This article reviews the GI manifestations of Sjögren's syndrome. It presents the case of a woman in her eighth decade of life with this syndrome. She showed asymptomatic hepatobiliary disease, documented abnormalities in liver profile tests, and a subsequent diagnosis of primary sclerosing cholangitis, for which she received initial treatment with ursodeoxycholic acid. During her condition, the patient has had three episodes of cholangitis, requiring endoscopic retrograde cholangiopancreatography with no findings of stones, with scant biliary sludge and discharge of purulent bile precipitated by her underlying liver disease. The association between Sjögren's syndrome and primary sclerosing cholangitis is rare and calls for special consideration.

El síndrome de Sjögren es una enfermedad autoinmune sistémica que se caracteriza por la sequedad ocular y bucal debido a la afección de glándulas exocrinas; sin embargo, puede manifestarse con síntomas gastrointestinales que abarcan un espectro amplio desde la dismotilidad esofágica e intestinal, acalasia, hipoclorhidria y gastritis crónica atrófica hasta enzimodeficiencia pancreática, disfunción biliar y cirrosis hepática, que tiene variación en sus manifestaciones clínicas y se asocia con abordajes erróneos en muchas ocasiones. En este artículo se hace una revisión acerca de las manifestaciones gastrointestinales de síndrome de Sjögren y se presenta el caso de una mujer en la octava década de la vida con este síndrome, que cursa con enfermedad hepatobiliar asintomática, documentación de alteración en pruebas de perfil hepático y diagnóstico ulterior de colangitis esclerosante primaria, por lo que recibió un tratamiento inicial con ácido ursodesoxicólico. Durante el curso de su enfermedad ha presentado 3 episodios de colangitis, con requerimiento de colangiopancreatografía retrógrada endoscópica sin hallazgos de cálculos, con escaso barro biliar y salida de bilis purulenta, precipitada por su enfermedad hepática de base. La asociación entre el síndrome de Sjögren y la colangitis esclerosante primaria es infrecuente y justifica una consideración especial.

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Introduction: Endoscopic ultrasound (EUS)-guided drainage and luminal-apposing metal stents (LAMS) are the options for managing symptomatic pancreatic pseudocysts. Aim: To evaluate the effectiveness and safety of LAMS for EUS-guided drainage of symptomatic pancreatic pseudocysts in two referral centers in Colombia. Materials and methods: A multicenter prospective cohort study between June 2019 and December 2021 included 13 patients diagnosed with symptomatic pancreatic pseudocysts who underwent EUS-guided drainage with LAMS. Technical success, clinical success, and successful stent removal were evaluated as outcomes. Safety outcomes included stent-related adverse events and general adverse events. Follow-up was carried out for eight weeks, collecting data on stent removal. Results: The average age was 53.4 years; 8/13 were men. The mean size of the pseudocyst was 9.56 ± 2.3 cm. Technical success was 100%, and clinical success was 92.3%. The stents were removed on average after 8 ± 2 weeks. The mean procedural time from puncture to stent deployment was 3.2 ± 2.4 minutes. In the imaging check-up, the collections had adequate drainage in all cases. There was a low frequency of complications; bleeding was documented in one case requiring surgery. Conclusions: LAMS is safe and effective in managing symptomatic pancreatic pseudocysts, reducing hospital stay and cost overruns. Clinical symptomatology prevails in the surgery decision.

Introducción: el drenaje guiado por ultrasonido endoscópico (USE) y el uso de stent metálico luminal de aposición (LAMS) son de elección en el manejo de los pseudoquistes pancreáticos sintomáticos. Objetivo: evaluar la efectividad y seguridad del LAMS para el drenaje por USE de pseudoquistes pancreáticos sintomáticos en dos centros de referencia en Colombia. Materiales y métodos: estudio de cohorte prospectivo multicéntrico entre junio de 2019 y diciembre de 2021, se incluyeron a 13 pacientes con diagnóstico de pseudoquistes pancreáticos sintomáticos sometidos a drenaje por USE con LAMS. Se evaluaron como desenlaces el éxito técnico, el éxito clínico y la extracción exitosa del stent. Y los desenlaces de seguridad incluyeron eventos adversos relacionados con el stent y los eventos adversos generales. Se realizó seguimiento a 8 semanas, en las que se recopilaron datos relacionados con el retiro del stent. Resultados: la edad promedio fue 53,4 años, 8/13 fueron hombres. El tamaño medio del pseudoquiste fue de 9,56 ± 2,3 cm. El éxito técnico fue del 100% y el éxito clínico fue 92,3%. Los stents fueron retirados en promedio a las 8 ± 2 semanas. El tiempo medio del procedimiento desde la punción hasta el despliegue del stent fue 3,2 ± 2,4 minutos. En el control imagenológico hubo un adecuado drenaje de las colecciones en todos los casos. Hubo baja frecuencia de complicaciones, se documentó sangrado en 1 caso con requerimiento quirúrgico. Conclusiones: el uso de LAMS es seguro y efectivo en el manejo de pseudoquistes pancreáticos sintomáticos, disminuye la estancia hospitalaria y sobrecostos. La sintomatología clínica prima en la decisión de intervención.

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Introduction: Liquid-filled intragastric balloons (IGBs) have emerged as a safe and effective option for managing overweight and obesity. However, there is limited information available regarding the implementation of liquid IGBs in individuals with low- and moderate-risk obesity. Objective: The objective of this study was to assess the implementation of liquid IGBs in low- and moderate-risk obese individuals in terms of weight loss, safety, and tolerance at four, six, and twelve months of treatment. Materials and methods: This prospective, descriptive observational study included 109 subjects with low- and moderate-risk obesity (body mass index [BMI] of 30-40 kg/m2), who underwent endoscopic implantation of liquid-filled IGBs. The variables analyzed included sex, age, initial and final weight, percentage of weight loss, and side effects. Results: Out of the 109 subjects, 75.22% were women. The average weight at baseline was 87.22 kg, with an average BMI of 31.59 kg/m2. Three different brands of IGBs were used: Orbera (n=103), Spatz3 (n=3), and Elipse (n=3). The average weight loss showed significant differences when analyzed by months and brands-Ellipse: four months (-4.6 kg), Spatz3: three months (-7 kg), Orbera: six months (15.2 kg), Orbera: twelve months (19.7 kg). The average reduction in BMI achieved was 27.71 kg/m2. The complication rate was 2.75%, with two cases (1.83%) attributed to intolerance (abdominal pain) and one case due to acute appendicitis (0.91%). Conclusions: The findings of this study indicate that liquid-filled IGBs are a safe and effective procedure for managing low- and moderate-risk obesity. A minimum duration of twelve months with an IGB implantation is considered optimal for individuals with low- and moderate-risk obesity.

Introducción: los balones intragástricos (BIG) de llenado líquido han surgido como una opción segura y eficaz para el manejo de sobrepeso y obesidad. En nuestro medio hay poca información acerca de su implementación en obesidad de riesgo bajo y moderado. Objetivo: evaluar la implementación del BIG de contenido líquido en individuos con obesidad de riesgo bajo y moderado en términos de pérdida de peso, seguridad y tolerancia a 4, 6 y 12 meses de tratamiento. Materiales y métodos: estudio observacional prospectivo y descriptivo, se incluyeron a 109 sujetos con obesidad de riesgo bajo y moderado (índice de masa corporal [IMC] de 30 a 40 kg/m2), a quienes se les implantó por vía endoscópica un BIG de llenado líquido. Se analizaron las variables de sexo, edad, peso inicial y final, porcentaje de pérdida de peso y efectos secundarios. Resultados: 109 sujetos, 75,22% correspondieron a mujeres, el peso promedio fue de 87,22 kg, con IMC promedio de 31,59 kg/m2. Se usaron tres marcas (Orbera, n: 103; Spatz, 3, n: 3; y Elipse, n: 3). La pérdida de peso promedio presentó diferencias importantes al analizar por meses y marcas: Elipse: 4 meses (-4,6 kg), Spatz 3: 3 meses (-7 kg), Orbera: 6 meses (15,2 kg), Orbera: 12 meses (19,7 kg). Se logró la reducción del IMC promedio a 27,71 kg/m2. La tasa de complicaciones fue del 2,75%, 2 (1,83%) por intolerancia (dolor abdominal) y una por apendicitis aguda (0,91%). Conclusiones: El BIG de llenado líquido es un procedimiento seguro y eficaz. Un período de implantación del BIG de al menos 12 meses se considera óptimo para obesidad de riesgo bajo y moderado.

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The study of the GI-tract microbiota of spondylarthritis (SpA) patients has focused on the analysis of feces samples, that picture mostly the luminal microbiota. The aim of this study was to determine the contribution of mucosal and luminal microbiome to the gut dysbiosis in SpA, using colonoscopy aspiration lavages (CAL), a recent alternative for regional studies of the GI-tract. We analyzed 59 CAL (from sigmoid colon and distal ileum), and 41 feces samples, from 32 SpA patients and 7 healthy individuals, using 16S rRNA gene-targeted metataxonomic profiling. It was found high prevalence of GI-tract manifestations among SpA patients (65.3%). Metataxonomic profiling, confirmed CAL samples from the lower GI tract (colon or ileum) presented a distinctive and undifferentiated bacteriome and separate from that found in feces' samples or in the beginning of the GI tract (oral cavity (OC)). Lower GI-tract samples and feces of SpA patients exhibited similar behavior to the microbiota of IBD group with reduced microbial richness and diversity, comparing to the healthy controls. Interestingly, it was found increase in proinflammatory taxa in SpA patients, such as Enterobacteriaceae family (mostly in the ileum), Succinivibrio spp. and Prevotella stercorea. Conversely, SpA patients presented significant decrease in the SCFA producers Coprococcus catus and Eubacterium biforme. Our data support the value of CAL samples for the regional study of GI-tract and contribute with information of potential "disruptor taxa" involved in the GI-tract associated disorders observed in SpA patients.

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INTRODUCTION: In Latin America and Colombia there are few studies about the clinical and therapeutic characteristics of patients with inflammatory bowel disease (IBD). The objective of this study is to obtain an approximation to these data from a sample of patients from different reference centres in Colombia. PATIENTS AND METHODS: Cross-sectional study in adult and paediatric patients, with IBD, attended ambulatory in 6 institutions in different cities, between 2017 and 2020 information was collected on different dates, about demographic, clinical, and therapeutic aspects. RESULTS: Six hundred and five subjects, 565 (93.4%) adults, mean age 43 years (SD 12.78), 64% with ulcerative colitis (UC). The age at diagnosis of UC was 41.9 years, while in Crohn's disease (CD) it was 47.9 years. In UC, there was greater left involvement (47.2%), and in CD, 42.8% ileocolonic (L3). More than 50% were in mild activity or clinical remission. In UC, the biologic requirement was 27.2%, while in CD, 78%. Overall hospitalisation requirement was 39.5%, and the need for surgery was 37.5% in UC and 62.5% in CD. Also, 40 pediatric patients, 90% female, with UC being more frequent (80%). In UC, 83.3% presented extensive colitis, and in CD, all with ileocolonic localization (L3). More than 95% were in mild activity or remission. Biologic therapy was required in 16.6% and 75% for UC and CD, respectively. The frequency of hospitalisations and surgery was 2.7%. CONCLUSIONS: This study shows some unique characteristics of patients with IBD in Colombia. An earlier diagnosis is required, with a better therapeutic approach.

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INTRODUCTION: There are no studies on efficacy of tofacitinib for ulcerative colitis (UC) in Latin America. The aim of this study was to describe the efficacy and safety, in the real world, of patients with moderate-severe UC treated with tofacitinib in our setting. MATERIALS AND METHODS: Multicenter descriptive observational study, in patients with UC who received treatment with tofacitinib in induction phase for 8 weeks and then, maintenance therapy, between June 2019 and June 2022. RESULTS: Thirty-four adult patients, 50% female, mean age 38.1 (range 22-72) years. 76.5% pancolitis, and 20.6% left colitis. 79.4% failure to tumor necrosis factor inhibitors (anti-TNFs), and 35.3% to vedolizumab. 14.7% naïve to biologic therapy. 23.5% had previous extraintestinal manifestations. During induction, 58.8% of patients achieved clinical, biochemical and endoscopic remission. During maintenance, 76.9% of patients at 26 weeks and 66.6% at 52 weeks presented clinical remission. Eight patients presented adverse events, none of them cardiovascular or thromboembolic. 44.1% were steroid-dependent, and 23.5% required steroids as rescue therapy. 38.3% required an increase in tofacitinib to 10mg every 12h during maintenance. In 17.6% tofacitinib was discontinued due to lack of efficacy. We included three pediatric-aged female patients, mean age 15.3 (range 14-17) years, 2/3 with pancolitis and 1/3 with left colitis, all with prior exposure to biologic therapy, who had clinical, biologic and endoscopic remission at induction. CONCLUSIONS: In this first Latin American study with tofacitinib in UC, efficacy and safety are demonstrated in the treatment of our patients with moderate to severe activity.

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There is little literature on the implementation of screening criteria for inflammatory bowel disease (IBD) in patients with spondyloarthritis (SpA). This study aimed to apply IBD screening criteria in a group of patients with SpA without IBD diagnosis and correlate them to endoscopic findings and disease activity. A total of 82 patients with SpA were included. The IBD screening test and ileocolonoscopy with digital chromoendoscopy with magnification and histological analysis were performed. The data were analysed with Chi-square test/Fisher's exact test and multiple correspondence analysis. The major screening criteria found in 48.7% of the patients were associated with a history of infection (p = 0.037). Rectal bleeding was associated with the diagnosis of ankylosing spondylitis, acute inflammation, enthesitis and tissue architecture alteration in the ileum (p < 0.050). Diarrhoea was associated with a higher disease activity score (p = 0.02). Minor screening criteria were associated with painful inflammatory joint (p = 0.05), high disease activity score (p = 0.001) and high calprotectin levels (p = 0.050). Abdominal pain (36.9%) was associated with axial/peripheral compromise (p = 0.017), inflammatory back pain (p = 0.01), enthesitis (p = 0.021), higher disease activity score (p = 0.023) and acute ileum inflammation (p = 0.046). Diarrhoea of 4 weeks and abdominal pain were the most prevalent major and minor screening criteria, respectively, being related to early manifestations of inflammatory bowel compromise and higher disease activity score. This screening test grants a chance of opportune referral of SpA patients from rheumatology to gastroenterology.

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The presence of esophageal foreign body (EFB) is a common emergency in gastroenterology. The protocol for management and endoscopic intervention can be variable among institutions. OBJECTIVE: to define the clinical characteristics of EFB in adults, its radiological and endoscopic diagnosis, and complications based on a sample of patients in a gastroenterology center. MATERIALS AND METHODS: case series of patients admitted from the emergency department and referred to the gastroenterology department with a presumptive diagnosis of EFB. Clinical variables were collected, as well as characteristics, comorbidities, time of evolution and diagnostic opportunity, confirmatory studies, and complications. RESULTS: 84 subjects, 70% men, mean age 45 (range: 17-87; SD 12.5) years. Urgent upper endoscopy was performed in 98.8% of the patients, with an average in-hospital stay of 2.5 days. 93% had no associated underlying pathology, in 6/84 (7.14%) patients structural or functional esophageal pathology was documented. 59/84 (70.2%) patients consulted in the first 24 hours, in 57.6% the presence of foreign body was confirmed endoscopically. In 67/84 (79.76%) patients radiography was performed prior to endoscopy, of which 62/67 (92.5%) had an abnormal result. Seventy percent of confirmed EFB were fish bones. The most frequent site of localization was in the cricopharyngeal region in 90% of the cases. In 66/84 (78.6%) subjects there was absence of complications, followed by deep laceration in 10/84 (11.9%) cases. In 3/84 (3.6%) cases complications requiring surgery were identified. CONCLUSIONS: Endoscopic intervention in the first 24 hours is an opportune moment to identify complications and provide the indicated treatment.

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BACKGROUND AND AIMS: Spondyloarthritis (SpA) is a group of autoinflammatory disorders, of which the primary extra-articular manifestation is inflammatory bowel disease (IBD). The oral cavity being a part of gastrointestinal tract, is significantly compromised in IBD, and in many cases, it is the first site of clinical manifestations of IBD. This study aimed to identify changes in the oral mucosa associated with the onset of IBD and their association with endoscopic/histological findings. MATERIALS AND METHODS: The study assessed 80 patients with SpA and 52 healthy controls. Oral, rheumatological, and gastroenterological assessments were performed. The ileocolonoscopy was performed via digital magnification chromoendoscopy. The statistical analysis consisted of Chi-square, Fisher's exact, and multiple correspondence discriminant analysis tests. RESULTS: From the disease cohort, 63.0% patients showed oral lesions (p = 0.050). These manifestations ranged from gingivitis (55.0%, p = 0.001), aphthous stomatitis (3.8%, p = 0.091), angular cheilitis (2.6%, p = 0.200), and perioral erythema with scaling (1.3%, p = 0.300). All patients who presented with alterations in colonic mucosa also had oral lesions associated with IBD (p = 0.039), specifically gingivitis/aphthous stomatitis (p = 0.029). CONCLUSION: The patients with SpA without IBD present significant oral signs and symptoms. Gingivitis seems to be the most relevant because of its associations with early endoscopic and histological findings. CLINICAL RELEVANCE: An integral approach to the diagnostic tests that includes evaluations of oral, rheumatological and gastroenterological tissues may favor timely attention and improve patients' quality of life.

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SpyGlass DS es un sistema de colangioscopia peroral, asociado a mejor calidad de imagen y conFiguración. Actualmente, existe diversidad en su uso y escasa información sobre su implementación, incluyendo resultados clínicos y eventos adversos. Describir la experiencia de uso del SpyGlass DS en varios centros de referencia en gastroenterología en Colombia, mencionando eficacia y posibles eventos adversos. Este es un estudio observacional (serie de casos). La principal indicación fue coledocolitiasis (n:204), seguida de estenosis biliar (n:40) y pancreatolitiasis (n:16). 49,2% fueron hombres, edad media de 58,6 años, clínicamente con predominio de dolor abdominal (80,5%) e ictericia (86,1%). Todos los casos presentaron diagnóstico por imagen previo (tomografía computarizada, resonancia magnética o ecografía), 98,07% colangiopancreatografía retrógrada endoscópica previa (n:255) y 75% stent plástico biliar. Se utilizó láser en 78/220 pacientes y litotricia electrohidráulica en 142/220 pacientes, con tasas de resolución en una sola sesión 96,15% y 95,07%, respectivamente. Siete casos requirieron segunda sesión de litotricia y 3 pacientes requirieron manejo quirúrgico, uno por pancreatolitiasis con páncreas divisum de base y 2 por hepatolitiasis. 40/260 pacientes presentaron estenosis biliar, 32/40 con hallazgos malignos (colangiocarcinoma) y 8/40 con patología benigna (colangitis esclerosante primaria, cambios inflamatorios inespecíficos) tras estudios histopatológicos. Como complicaciones, se registraron 6 casos de bacteriemia (2,5%), siendo más frecuentes en casos de estenosis. La estancia media postoperatoria fue 2,04 días. Concluimos que el uso del SpyGlass DS es factible en nuestro medio, siendo eficaz para diagnóstico y tratamiento de lesiones biliares, y con bajo riesgo de eventos adversos.

SpyGlass DS is a peroral cholangioscopy system, associated with improved image quality and conFiguration. Currently, there is diversity in its use and little information on its implementation, including clinical outcomes and adverse events. To describe the experience of using SpyGlass DS in several gastroenterology reference centres in Colombia, mentioning efficacy and possible adverse events. This is an observational study (case series). The main indication was choledocholithiasis (n:204), followed by biliary stricture (n:40) and pancreatolithiasis (n:16). 49.2% were male, mean age 58.6 years, clinically with predominance of abdominal pain (80.5%) and jaundice (86.1%). All cases had previous imaging (CT scan, MRI or ultrasound), 98.07% previous endoscopic retrograde cholangiopancreatography (n:255) and 75% biliary plastic stent. Laser was used in 78/220 patients and electrohydraulic lithotripsy in 142/220 patients, with single-session resolution rates of 96.15% and 95.07%, respectively. Seven cases required a second lithotripsy session and 3 patients required surgical management, one for pancreatolithiasis with basal pancreas divisum and 2 for hepatolithiasis. 40/260 patients presented with biliary stricture, 32/40 with malignant findings (cholangiocarcinoma) and 8/40 with benign pathology (primary sclerosing cholangitis, non-specific inflammatory changes) after histopathological studies. As complications, 6 cases of bacteraemia (2.5%) were recorded, being more frequent in cases of stenosis. The mean postoperative stay was 2.04 days. We concluded that the use of SpyGlass DS is feasible in our setting, being effective for diagnosis and treatment of biliary lesions, and with low risk of adverse events.