[Pan American Crohn's and Colitis Organization (PANCCO) and the Interamerican Society of Endoscopy (SIED) consensus on endoscopy in inflammatory bowel disease]. / Consenso de endoscopia en enfermedad inflamatoria intestinal de la Organización Panamericana de Crohn y Colitis (PANCCO) y la Sociedad Interamericana de endoscopia (SIED).

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.

[Start of enteral nutrition after an endoscopic gastrostomy, is it necessary to wait?] / Inicio de nutrición enteral luego de una gastrostomía endoscópica, ¿es necesario esperar?

Traditionally, the initiation of enteral nutrition after a percutaneous endoscopic gastrostomy (PEG) is performed between 12 and 24 hours. Different research suggests that early initiation might be a safe option. Our aim was to determine whether starting enteral nutrition 4 hours after performing PEG is a safe practice in terms of risk of intolerance, complications, or death, compared to starting it at 12 hours. We carried out a prospective, randomized, multicenter study in third and fourth level institutions in Bogotá and Cundinamarca, between June 2020 and May 2022, 117 patients were included who were randomized into 2 groups, group A with early nutrition initiation (4 hours), and standard group B (12 hours). The most frequent mechanism of dysphagia was cerebrovascular disease (43%), followed by complications of COVID19 infection (26%). There were no statistically significant differences between the groups evaluated regarding the percentage of intolerance to nutrition, RR = 0.93 (CI 0.30-2.90), there were also no differences in terms of postoperative complications, (RR) = 0.34 (CI 0.09-1.16), and no differences were found in mortality between the evaluated groups, (RR) = 1.12 (CI 0.59-2.15). In conclusion, early initiation of nutrition through the gastrostomy, 4 hours after performing the PEG, is a safe behavior that is not related to greater intolerance to nutrition, complications, or death, compared to later initiation.

Impact of head of bed elevation in symptoms of patients with gastroesophageal reflux disease: a randomized single-blind study (IBELGA). / Impacto de la elevación de la cabecera de la cama en los síntomas de pacientes con enfermedad por reflujo gastroesofágico: estudio aleatorizado simple-ciego (IBELGA).

BACKGROUND: The clinical impact of head-of-bed elevation in patients with gastro-oesophageal reflux disease is unclear, because of inconsistency and methodological limitations of previous studies. PATIENTS AND METHODS: A randomised single-blind single-centre controlled clinical trial with a 2x2 cross-over design, in 39 pharmacologically treated patients with gastro-oesophageal reflux disease. Active intervention was to use a head-of-bed-elevation of 20cm for 6 weeks and then to sleep without inclination for 6 additional weeks, with a wash-out of 2 weeks between periods. The primary outcome was a change ≥10% in RDQ score and secondary outcomes were a change ≥10% in SF-36 score, patient preference and frequency of adverse events. RESULTS: 27 (69.2%) patients who used the intervention reached the primary outcome vs 13 (33.3%) patients in the control group (RR: 2.08; 95 CI%: 1.19 - 3.61). No effect was found in SF-36 score (RR: 1.11; 95% CI: 0.47 - 2.60). Preference favouring the intervention was 77.1% and adverse event proportion was 54.0%. CONCLUSION: Head-of-bed elevation improved reflux symptoms but there was no effect on quality of life. The finding of a non-optimal risk-benefit ratio warrants additional studies before this intervention can be recommended (IBELGA, ClinicalTrials.gov identifier NCT02706938).

Personalized therapy for Helicobacter pylori: CYP2C19 genotype effect on first-line triple therapy.

BACKGROUND: Triple therapy efficacy against Helicobacter pylori is low worldwide, and thus, alternatives must be sought to improve eradication. The aim of the present study was to determine CYP2C19 genetic polymorphism effect on H pylori eradication. METHODS: A randomized, single-blinded clinical trial including 133 participants was carried out. H pylori infection was confirmed by histologic and microbiologic test. Antibiotic susceptibility to amoxicillin and clarithromycin was performed. CYP2C19 polymorphisms *1, *2, and *3 were analyzed by real-time PCR (Roche ®), and nested PCR for CYP2C19*17 polymorphisms. Participants were randomized into two groups for different H pylori therapies, one with standard omeprazole doses and another with omeprazole doses depending on CYP2C19 polymorphism. H pylori eradication was verified by stool antigen tests (Meridian ®). RESULTS: The most common CYP2C19 polymorphism was *1/*1 in 54.9% of the participants followed by *17/*17 in 21.1%. Triple therapy efficacy with standard omeprazole doses versus personalized therapy based on CYP2C19 polymorphism by ITT analysis was 84% (95% CI: 0.73-0.91) vs 92.2% (95% CI: 0.82-0.97) (P = 0. 14), respectively. The efficacy by PP analysis was 92.1% (95% CI: 0.82-0.97) vs 100% (95% CI: 0.92-0.01) (P = 0.027), respectively. CONCLUSIONS: The most frequent polymorphism was extensive PPI metabolizers (62.4%). Effectiveness of guided therapies by susceptibility test was good, yet they can be further improved by customized therapy based on CYP genotype. Therefore, high PPI (80 mg/d) doses are recommended for H pylori eradication therapies in Colombia. ClinicalTrials.gov ID: NCT03650543.

[Duodenal eosinophilia in functional dyspepsia in a Colombian sample: a case-control study]. / Eosinofilia duodenal en pacientes Colombianos con dispepsia funcional: un estudio de casos y controles.

INTRODUCTION: Functional dyspepsia (FD) is a complex symptom. Currently there are multiple therapeutic options that are used for the management of these patients; however, FD therapies are based on symptomatic control and do not address the pathophysiological pathways involved in its development. The duodenum has been proposed as a key site to understand the complex pathophysiology involved in FD. OBJECTIVE: The aim of the study is to determine duodenal eosinophilia in patients with FD and establish the clinical-pathological correlation with the cardinal symptoms of dyspepsia. MATERIAL AND METHODS: Case-control study. Patients older than 18 years with dyspepsia according to the Rome IV criteria, and upper gastrointestinal endoscopy normal (FD group).Patients with iron deficiency anemia and chronic diarrhea (control group). Biopsies were taken in the stomach, duodenal bulb and second portion of duodenum. A sample size of 140 patients (70 patients in the FD group and 70 patients in the control group) was calculated. The collected information was described and analyzed by conventional statistical techniques. RESULTS: 243 patients were recruited. 84 patients were included in the FD group and 84 patients in the control group. 135 patients were women (80.3%). The mean age was 53.6 years (SD 14.9). Duodenal eosinophilia was found with significant difference in patients with early satiety (p=0.01). There was no difference in patients with postprandial fullness (p=0.63), epigastric pain or burning (p=0.26), gastroesophageal reflux symptoms (p=0.13), allergy and food intolerance (p=0.42) and smoking (p=0.28). There was no relationship between duodenal mastocytosis and early satiety (p=0.98), postprandial fullness (p=0.78), and epigastric pain or burning (p=0.82). CONCLUSIONS: Duodenal eosinophilia was similar in FD and controls. In subgroup analysis, duodenal eosinophilia occurs in patients with early satiety.

[Diagnostic and therapeutic approach to dyspepsia and functional dyspepsia:what's new in 2019?] / Enfoque diagnóstico y terapéutico de dispepsia y dispepsia funcional:¿qué hay nuevo en el 2019?

Dyspepsia encompasses a set of symptoms that originate in the gastroduodenal region. It is characterized by pain or epigastric burning, early satiety and post-prandial fullness. According to the relationship of symptoms with meals, it is divided into epigastric pain syndrome and postprandial distress syndrome. However, in clinical practice, they frequently overlap. In recent years the paradigm of gastric physiological alterations has been changed and evidence supporting duodenal eosinophilia has increased, as a primary alteration that alters gastric physiology and can induce symptomatology. Every day there is more interest in the alteration of the microbiota. The treatment is based on the suppression of acid, neuromodulators, prokinetics, psychotherapy, alternative and complementary therapies. No treatment is effective in all patients.

[Practical issues in diagnostic tests for Helicobacter pylori infection: a narrative review]. / Aspectos prácticos en métodos diagnósticos para la infección por Helicobacter pylori: una revisión narrativa.

H. pylori diagnosis is important because of the different clinical conditions associated with its presence, taking into account the different recommended indications for Helicobacter pylori erradication therapy and the broad spectrum of available diagnostic methods, it is necessary to achieve a timely diagnosis before and after eradication therapy. The success in the diagnosis is obtained from methods with high precision, those whose sensitivity and specificity is greater than 90%. This article aims to present advances in the various methods related to its detection, emphasizing their contributions and possible defects. The decision of the diagnostic method to apply will depend on the specific clinical context.

[Chronic diarrhea in the diabetic. A review of the literature]. / Diarrea crónica en el diabético. Una revisión de la literatura.

The association of diarrhea with diabetes mellitus has been known for more than 70 years. In diabetic patients its prevalence is around 20%.Its clinical manifestations are diverse, and represents a diagnostic and therapeutic challenge.There are certain diagnoses of higher prevalence in diabetic patients than in the general population.The different related etiologies can be adequately diagnosed through the clinical history and complementary diagnostic tests.The medications used by the diabetic patient to manage their disease often cause chronic diarrhea, so the pharmacological background should be studied at the time of the study of diarrhea.Diabetic patients can present other associated pathological conditions, such as celiac disease or microscopic colitis, which only discomfort is diarrhea.Exocrine pancreatic function may be decreased in the diabetic patient, frequently leading to exocrine pancreatic insufficiency. Dietary factors, such as sugar-free sweeteners and other agents, can cause diarrhea in the diabetic patient.The presence of conditions such as autonomic neuropathy and peripheral neuropathy secondary to diabetes mellitus may explain disorders such as anorectal dysfunction and faecal incontinence. Finally, diabetic enteropathy alone or with associated bacterial overgrowth can cause diarrhea.Achieving adequate glycemic control is the pillar of the treatment of diarrhea in the diabetic, after which there are additional measures that are applied according to the specific context of the patient.This article reviews the causes of higher diarrhea incidence in the diabetic patient and the pathophysiological mechanisms involved.

Prevalence of CYP2C19 polymorphism in Bogotá, Colombia: The first report of allele *17.

INTRODUCTION: Proton pump inhibitors (PPIs) are a group of drugs that are essential for the treatment of acid-related disorders, such as gastroesophageal reflux (GERD), dyspepsia, gastric ulcers and Helicobacter pylori (H. pylori) infection. PPIs such as omeprazole, esomeprazole, pantoprazole and lansoprazole are metabolized by the CYP2C19 enzyme, which is encoded by a polymorphic gene. Four polymorphisms have an impact on the speed of PPI metabolism: CYP2C19*1/*1 (extensive metabolizers), CYP2C19*2/*2 (intermediate metabolizers), CYP2C19*3/*3 (poor metabolizers) and CYP2C19*17/*17 (ultrarapid metabolizers). Extensive and ultrarapid metabolizers inactivate PPIs quickly, which consequently causes low plasma concentrations of PPIs, while intermediate or poor metabolizers have higher plasma concentrations of PPIs and, therefore, PPIs have greater therapeutic efficacy in individuals with these polymorphisms. OBJECTIVE: To determine the frequency of genetic polymorphisms of the CPY2C19 enzyme in Bogotá, Colombia. METHODS: This observational study was conducted in Bogotá between 2012 and 2015 and was part of a clinical trial (ID: NCT03650543). It included 239 subjects with dyspepsia, H. pylori infection, or GERD symptoms. CYP2C19 genotyping was performed on gastric biopsy samples. Polymorphisms *1, *2, and *3 were analyzed by real-time PCR (Roche®), and PCR-RFLP was used to determine the presence of polymorphism *17. RESULTS: The distribution of different types of PPI metabolizers was as follows: extensive (70.7%), ultrarapid (12.9%), intermediate (8.8%) and poor (0.8%). CONCLUSION: The population studied consisted mainly of extensive and ultrarapid PPI metabolizers. These findings show that it is necessary to increase PPI doses in this group of subjects or to use PPIs that are not metabolized by CYP2C19 (rabeprazole). This is the first Colombian work to identify ultrarapid metabolizers.

cagA gene EPIYA motif genetic characterization from Colombian Helicobacter pylori isolates: Standardization of a molecular test for rapid clinical laboratory detection.

The aim of this work was to determine current cagA gene EPIYA motifs present in Colombian Helicobacter pylori isolates using a fast and reliable molecular test. DNA from eighty-five Helicobacter pylori-cagA positive strains were analyzed. Strains were obtained from patients diagnosed with functional dyspepsia at Clínica Fundadores in Bogotá. The 3' region of the cagA gene was amplified through conventional Polymerase Chain Reaction (PCR). Obtained amplicons were sequenced using the Sanger method and analyzed with bioinformatics tools. Additionally, a significant Spearman correlation coefficient was determined between the patients' age and the number of EPIYA-C repeats; with p values < 0.05 considered significant. Estimates were obtained using a 95% CI. The 3´ variable region of the cagA gene was amplified and PCR products of the following sizes corresponded to the following EPIYA motifs: 400 bp: EPIYA AB, 500 bp: EPIYA ABC, 600 bp: EPIYA ABCC and 700 bp: ABCCC. A single PCR band was observed for 58 out of 85 Helicobacter pylori isolates, with an EPIYA distribution motif as follows: 7/85 AB (8.2%), 34/85 ABC (40%), 26/85 ABCC (30.6%) and 18/85 ABCCC (21.2%). However, in 27 out of 85 Helicobacter pylori isolates, two or more bands were observed, where the most predominant cagA genotype were ABC-ABCC (26%, 7/27) and ABCC-ABCCC (22.2%, 6/27). A direct proportionality between the number of EPIYA-C repeats and an increase in the patients' age was observed, finding a greater number of EPIYA ABCC and ABCCC repeats in the population over 50 years old. All isolates were of the Western cagA type and 51.8% of them were found to have multiple EPIYA-C repeats. These standardized molecular test allowed to identify the number of EPIYA C motifs based on band size.

Primary Anorectal Melanoma: Case Report and Review of a Rare Neoplasm

Primary anorectal melanoma is a rare malignant melanocytic neoplasm; its principal manifestation is rectal bleeding. It has an ominous prognosis with a five-year survival rate of 10%. The case of a 56-year-old woman with rectal bleeding and the sensation of a rectal mass is presented. A polypoid lesion, resected transanally, was documented in the distal rectum during the colonoscopy. The histological study confirmed a primary anorectal melanoma.

El melanoma anorrectal primario es una neoplasia melanocítica maligna poco frecuente, su principal manifestación es el sangrado rectal. Tiene un pronóstico ominoso con una tasa de sobrevida del 10% a 5 años. Se presenta el caso de una mujer de 56 años con rectorragia y sensación de masa rectal. Durante la colonoscopia se documentó una lesión polipoide en el recto distal, que se resecó por vía transanal. El estudio histológico confirmó la presencia de un melanoma anorrectal primario.

Impact of Bariatric Surgery on the Incidence of Various Cancers. Narrative Review

Obesity is a global epidemic. According to the World Health Organization (WHO), it is an abnormal or excessive accumulation of fat that can harm health. Its incidence is increasing alarmingly in developing countries. It is also a significant risk factor for developing chronic diseases such as type 2 diabetes mellitus, arterial hypertension, coronary disease, non-alcoholic fatty liver disease, and musculoskeletal disorders such as osteoarthritis. Furthermore, associations have been found between obesity and the development of prostate, liver, gallbladder, kidney, colon, endometrial, breast, and ovarian cancer. Bariatric and metabolic surgery is the most effective treatment for morbid obesity and its comorbidities. This surgery can reduce general mortality by 40% at ten years due to cardiovascular outcomes, diabetes, or cancer and improve metabolic diseases such as type 2 diabetes.

La obesidad es una epidemia global, según la Organización Mundial de la Salud (OMS) se define como una acumulación anormal o excesiva de grasa que puede ser perjudicial para la salud, su incidencia está aumentando de forma alarmante en los países en desarrollo. Asimismo, es un factor de riesgo importante para el desarrollo de enfermedades crónicas como la diabetes mellitus tipo 2, hipertensión arterial, enfermedad coronaria, enfermedad del hígado graso no alcohólico y trastornos musculoesqueléticos como la osteoartritis; además, se han encontrado asociaciones entre la obesidad y el desarrollo del cáncer de próstata, hígado, vesícula biliar, riñón, colon, endometrio, mama y ovarios. La cirugía bariátrica y metabólica es el tratamiento más eficaz para la obesidad mórbida y sus comorbilidades, esta cirugía puede reducir la mortalidad general en un 40% a los diez años por desenlaces cardiovasculares, diabetes o cáncer, como también mejorar enfermedades metabólicas como la diabetes tipo 2.

Inicio de nutrición enteral luego de una gastrostomía endoscópica, ¿es necesario esperar?

Tradicionalmente, el inicio de nutrición enteral, luego de una gastrostomía endoscópica percutánea (GEP) se realiza entre 12 a 24 horas. Diferentes investigaciones sugieren que iniciarla más temprano podría ser una opción segura. El objetivo es determinar si el inicio de nutrición enteral a las 4 horas después de realizar GEP es una conducta segura en cuanto al riesgo de intolerancia, complicaciones o muerte, comparado con iniciarla a las 12 horas. Realizamos un estudio prospectivo, aleatorizado, multicéntrico en instituciones de tercer y cuarto nivel de Bogotá y Cundinamarca, entre junio de 2020 y mayo de 2022, se incluyeron 117 pacientes que fueron aleatorizados en 2 grupos, el grupo A de inicio temprano de nutrición (4 horas), y el grupo B de inicio estándar (12 horas). El mecanismo más frecuente de disfagia fue la enfermedad cerebrovascular (43%), seguido por complicaciones de infección por COVID-19 (26%). No hubo diferencias estadísticamente significativas entre los grupos evaluados respecto al porcentaje de intolerancia a la nutrición, RR = 0,93 (IC 0,30-2,90), tampoco hubo diferencias en términos de complicaciones posoperatorias, (RR) = 0,34 (IC 0,09-1,16), y no se encontraron diferencias en la mortalidad entre los grupos evaluados, (RR) = 1,12 (IC 0,59 - 2,15). En conclusión, el inicio de nutrición a través de la gastrostomía de forma temprana, 4 horas después de la realización de la GEP es una conducta segura que no se relaciona con una mayor intolerancia a la nutrición, complicaciones o muerte, en comparación con un inicio más tardío.

Traditionally, the initiation of enteral nutrition after a percutaneous endoscopic gastrostomy (PEG) is performed between 12 and 24 hours. Different research suggests that early initiation might be a safe option. Our aim was to determine whether starting enteral nutrition 4 hours after performing PEG is a safe practice in terms of risk of intolerance, complications, or death, compared to starting it at 12 hours. We carried out a prospective, randomized, multicenter study in third and fourth level institutions in Bogotá and Cundinamarca, between June 2020 and May 2022, 117 patients were included who were randomized into 2 groups, group A with early nutrition initiation (4 hours), and standard group B (12 hours). The most frequent mechanism of dysphagia was cerebrovascular disease (43%), followed by complications of COVID19 infection (26%). There were no statistically significant differences between the groups evaluated regarding the percentage of intolerance to nutrition, RR = 0.93 (CI 0.30-2.90), there were also no differences in terms of postoperative complications, (RR) = 0.34 (CI 0.09-1.16), and no differences were found in mortality between the evaluated groups, (RR) = 1.12 (CI 0.59-2.15). In conclusion, early initiation of nutrition through the gastrostomy, 4 hours after performing the PEG, is a safe behavior that is not related to greater intolerance to nutrition, complications, or death, compared to later initiation.

Gastrointestinal manifestations of COVID-19 in a Colombian population. A cross-sectional study

Introduction: gastrointestinal involvement in COVID-19 occurs in approximately 20% of patients and may include nausea, vomiting, abdominal pain, diarrhea or abnormal liver function tests. In our country, the characteristics of gastrointestinal involvement in COVID-19 patients have not been studied. Objectives: to determine the prevalence of gastrointestinal and liver involvement in patients with COVID-19 treated at two hospitals in Bogotá, Colombia. To determine the association between COVID-19 gastrointestinal involvement and length of hospital stay, severity and mortality. Design and methodology: a cross-sectional study carried out at two hospitals in a hospital subnetwork in Bogotá, Colombia from February 2020 to March 2021. Results: a total of 1,176 patients with a positive reverse transcription polymerase chain reaction (RT-PCR) were included. Gastrointestinal manifestations occurred in 50% (95%CI 47-52%), with the most frequent being diarrhea in 18.4%, odynophagia in 17.6%, anorexia in 14.7% and abdominal pain in 8.8%. An association was found between diarrhea during hospitalization and prolonged hospitalization (OR 1.93 95%CI 1.19-3.13), and between gastrointestinal bleeding on admission and death (OR 3.13, 95%CI 1.1-9.1), among others. Abnormal liver function tests occurred in 46% (95%CI 43-49%) and were more frequent in patients with severe disease and those who died. Conclusions: the prevalence of gastrointestinal manifestations in patients with COVID-19 was 50%. Diarrhea was associated with a longer hospital stay, and gastrointestinal bleeding was associated with respiratory failure and death. Forty-six percent of patients had abnormal liver function tests, with elevated transaminases being the most frequent. Elevated aspartate transaminase (AST) on admission was associated with greater mortality. (Acta Med Colomb 2022; 48. DOI:https://doi.org/10.36104/amc.2023.2729).

Reservoritis, una complicación del tratamiento quirúrgico de la colitis ulcerativa. Diagnóstico y tratamiento. Revisión / Pouchitis, a complication associated with the surgical treatment of ulcerative colitis. Diagnosis and treatment. Review

Resumen Del 20% al 30% de los pacientes con colitis ulcerativa (CU) son sometidos a cirugía, ya sea por intratabilidad, curso fulminante, aparición de displasia o cáncer de colon. La cirugía de elección es la proctocolectomía con reservorio ileoanal. Sin embargo, el 20%-50% de los pacientes presentan reservoritis a 10 años. El diagnóstico se realiza con base en las manifestaciones clínicas, las alteraciones endoscópicas y la histología. Los medicamentos utilizados en el tratamiento de la CU no son tan eficaces en la reservoritis y el tratamiento de primera línea es los antibióticos. Dependiendo de la respuesta inicial y el curso clínico de la entidad, se elegirá el tratamiento posterior. En esta revisión se discuten los aspectos más importantes con respecto a la epidemiología, diagnóstico, patogénesis y tratamiento de la reservoritis.

Abstract Between 20% and 30% of patients with ulcerative colitis (UC) undergo surgery because it is not treatable or because it is associated with a fulminant course, dysplasia, or colon cancer. The surgery of choice is proctocolectomy with ileal-anal pouch. However, 20%-50% of patients present with pouchitis 10 years after surgery. The diagnosis is made based on clinical manifestations, endoscopic alterations, and histology. The drugs used in the treatment of UC are not as effective in pouchitis and the first-line treatment is antibiotics administration. Depending on the initial response and clinical course of the condition, subsequent treatment will be chosen. This review discusses the most important aspects of the epidemiology, diagnosis, pathogenesis, and treatment of pouchitis.

Pancreatitis aguda: una complicación infrecuente de las gastrostomías por migración del balón interno. Reporte de un caso y revisión de literatura / Acute pancreatitis: A rare complication of gastrostomy due to intragastric balloon migration. Case report and literature review

Resumen La pancreatitis aguda secundaria a la obstrucción de la papila mayor causada por la migración del balón interno es uno de los efectos secundarios poco frecuentes, pero potencialmente graves relacionados con el uso de gastrostomías endoscópicas percutáneas (PEG). Hasta ahora solo existen 15 casos reportados en el mundo, presentamos el que para nuestro conocimiento sería el caso número 16 en la literatura internacional.

Abstract Acute pancreatitis secondary to major papilla obstruction caused by intragastric balloon migration is one of the rare but potentially severe side effects associated with the use of percutaneous endoscopic gastrostomy (PEG). To date, there are only 15 cases reported worldwide. This article presents a case that, to the best of our knowledge, is the sixteenth case reported in the international literature.

The efficacy of dual therapy for eradicating H. pylori in a Colombian population

Abstract Background: Helicobacter pylori (H. pylori) affects 50% of the human population. The efficacy of the usual treatments has decreased due to increased antibiotic resistance, except for that of amoxicillin, tetracycline, furazolidone and bismuth. Recently, there has been a new interest in dual therapy with high-dose proton pump inhibitors (PPI) and amoxicillin as initial and rescue treatment. There are no studies on this topic in our setting. Objective: to determine the efficacy of dual therapy with high-dose IPP and amoxicillin for eradicating H. pylori. Materials and methods: this was a quasi-experimental study carried out from December 2019 to July 2020 in people over the age of 18 with histologically confirmed H. pylori. All received 40 mg of esomeprazole half an hour before breakfast, lunch and dinner, plus 1 gram of oral amoxicillin every eight hours for 14 days. Eradication was determined by fecal antigens (OnSiteTM H. pylori Biotech Inc.) after four weeks of treatment. Results: 108 patients with an average age of 67 years were included, 70% of whom were women. Eradication per protocol (PP) and intention to treat (ITT) was 86% (95%CI 79.4-92.5%) for both. In previously treated patients (26%) the efficacy was 85.7% (95%CI 71.8-99.5%). Adverse events were mild in 31%, especially nausea (16%) and abdominal distension (14%). Treatment was not suspended in any patient. Conclusion: Dual therapy is effective, easy to administer, and has few adverse effects. It would be a good option in our setting as initial or rescue therapy. Larger studies are needed to confirm our results. (Acta Med Colomb 2021; 46. DOI:https://doi.org/10.36104/amc.2021.2091).

Impact of treatment optimization in patients with gastroesophageal reflux disease who do not respond to esomeprazole / Impacto de la optimización del tratamiento en pacientes con enfermedad por reflujo gastroesofágico que no responden a esomeprazol

Abstract Introduction: gastroesophageal reflux disease (GERD) affects one out of eight people in Colombia. Its characteristic symptoms are heartburn and reflux. The cornerstone of treatment is proton pump inhibitors (PPIs), with a clinical response in 58-80% of patients. Of those who do not respond, 75-90% have a superimposed functional disorder and could be treated by adding visceral neuromodulators. Objective: to evaluate the impact of optimizing the treatment of patients with GERD when there is no response to esomeprazole (ESO). Materials and methods: a prospective study in patients with no clinical response (more than two reflux episodes per week) who were treated with 40 mg of ESO half an hour before breakfast along with the recommendation to lose weight if BMI >25, stop smoking and manage stress; and, finally, increasing the ESO dose to 40 mg on an empty stomach and before dinner. When all of this was done and symptoms persisted, 12.5 mg of amitriptyline were added at night. The response was evaluated every 12 weeks. Results: a total of 529 patients were eligible and 149 met the inclusion criteria. With treatment optimization, 111 patients had a clinical response without using amitriptyline (74.5%; 95%CI 67.2 81.4). Amitriptyline was added in 22 patients (14.8%), 15 of whom responded (68.2%; 95%CI 47.04-89.32%). Eight patients experienced drowsiness (53.3%). A relationship was found between PPI treatment compliance and clinical response (p<0.0001). Conclusions: in patients with GERD, PPI treatment optimization improves 74.5% (95%CI 67.2 81.4) of the patients, and adding amitriptyline for those who do not improve achieves improvement in 68.2% of those who did not improve with two doses of ESO. Sequential management achieved a cumulative improvement in symptom control in 85% (95%CI 78.6-90.4) of the patients. (Acta Med Colomb 2021; 46. DOI: https://doi.org/10.36104/amc.2021.2041).

Resumen Introducción: la enfermedad por reflujo gastroesofágico (ERGE) afecta a una de cada ocho personas en Colombia. Sus síntomas característicos son pirosis y regurgitación. La piedra angular del tratamiento son los inhibidores de bomba de protones (IBP) con respuesta clínica en 58-80%. En quienes no responden 75-90% tienen un trastorno funcional superpuesto y se podrían tratar adicionando neuromoduladores viscerales. Objetivo: evaluar el impacto que tiene optimizar el tratamiento en pacientes con ERGE cuando no hay respuesta a esomeprazol (ESO). Material y métodos: estudio prospectivo en pacientes sin respuesta clínica (más de dos episodios de reflujo por semana) tratados con ESO 40 mg media hora antes del desayuno y simultáneamente recomendaciones para bajar de peso si IMC >25, dejar de fumar y controlar el estrés, y finalmente aumentado la dosis de ESO a 40 mg en ayunas y antes de la cena. Cuando se cumplió todo lo anterior y persistían los síntomas, se adicionó amitriptilina 12.5 mg por la noche. Cada 12 semanas se evaluaba la respuesta. Resultados: hubo 529 pacientes elegibles y 149 cumplieron los criterios de inclusión. Optimizando el tratamiento 111 pacientes tuvieron respuesta clínica sin la utilización de amitriptilina (74.5%; IC95% 67.2-81.4). En 22 se adicionó amitriptilina (14.8%) y de estos respondieron 15 pacientes, 68.2% (IC95% 47.04-89.32%). En ocho pacientes hubo somnolencia (53.3%). Se encontró relación entre el cumplimiento del tratamiento con IBP y la respuesta clínica (p<0.0001). Conclusiones: en pacientes con ERGE la optimización del tratamiento con IBP mejora el 74.5% (IC95% 67.2-81.4) de los pacientes y la adición de amitriptilina a quienes no mejoran, logra mejorar el 68.2% de quienes no mejoraban con dos dosis de ESO. Con el manejo secuencial se logró mejoría acumulativa en el control de los síntomas de 85% (IC95% 78.6-90.4) de los pacientes. (Acta Med Colomb 2021; 46. DOI:https://doi.org/10.36104/amc.2021.2041).

Nutrición en pancreatitis aguda: nuevos conceptos para un viejo problema / Nutrition in acute pancreatitis: new concepts for an old problem

Resumen El manejo de la nutrición en pancreatitis aguda ha sido cuestión de debate. Durante muchos años el concepto de reposo pancreático fue generalizado y aceptado en el manejo de la pancreatitis aguda. Actualmente se conoce que la nutrición temprana permite mantener la integridad de la barrera intestinal, que previene la aparición de complicaciones infeccionas y se asocia con una menor estancia hospitalaria, menos complicaciones y un mejor pronóstico. En esta revisión se discuten las principales ventajas de la nutrición temprana en pancreatitis aguda, la seguridad de la misma y la vía de administración.

Abstract Nutrition management in acute pancreatitis has been a matter of debate worldwide. For many years, the concept of pancreatic rest was widespread and accepted to treat acute pancreatitis. However, current knowledge of early nutrition allows maintaining the intestinal barrier's integrity, preventing the occurrence of infectious complications, which is associated with a shorter hospital stay, fewer complications, and better prognosis. This review presents the main advantages of early nutrition in acute pancreatitis, its safety, and the route of administration.

Evaluación del rendimiento diagnóstico de los criterios predictivos de la sociedad británica para el diagnóstico de coledocolitiasis en una población colombiana / Diagnostic performance of the British Society of Gastroenterology predictive criteria for the diagnosis of choledocholithiasis in a Colombian population

Resumen Introducción: la coledocolitiasis (CLDL) puede ser difícil de diagnosticar. Su importancia radica en sus potenciales complicaciones y en que el tratamiento se realiza mediante colangiopancreatografía retrógrada endoscópica (CPRE), un procedimiento con riesgo de generar complicaciones. Se han propuesto guías para su diagnóstico y la más empleada es la de la ASGE (American Society for Gastrointestinal Endoscopy), cuyo rendimiento no es ideal. Recientemente, se ha publicado la guía británica. Este estudio se realizó para establecer el rendimiento de ambas guías. Materiales y métodos: estudio prospectivo realizado entre agosto 1 de 2017 y julio 31 de 2018. Resultados: se incluyeron 300 pacientes para el análisis. Se realizó una CPRE en 145 pacientes y se confirmó la existencia de CLDL en 124 de ellos (85,5 %). La mediana de aspartato aminotransferasa (AST) y alanina aminotransferasa (ALT) fue mayor en los que tuvieron CLDC (207 mg/dL y 290 mg/dl, respectivamente). Entre tanto, la tasa de complicaciones posteriores a la CPRE fue del 5,5 %. El análisis multivariado no encontró una asociación significativa para alguna variable predictora de CLDL. En pacientes con alta probabilidad, las guías británicas tuvieron una sensibilidad del 65 % y una especificidad del 33 %, mientras que las guías ASGE mostraron una sensibilidad del 74 % y una especificidad del 28 %. En probabilidad intermedia fueron menos eficientes. Conclusiones: los criterios de la ASGE y la BSG (British Society of Gastroenterology) no tienen un buen desempeño en la población estudiada, a fin de discriminar la existencia o no de CLDL. La guía de la ASGE mostró un mejor rendimiento en general que las guías británicas.

Abstract Introduction: Choledocholithiasis (CDL) may be difficult to diagnose. The relevance of making a timely diagnosis lies in its potential negative effects and the fact that treatment requires performing endoscopic retrograde cholangiopancreatography (ERCP), which is a procedure with a high risk of complications. Several guidelines have been proposed for its diagnosis, including the ASGE Guidelines, which are the most widely used although they do not have an ideal performance, and the guidelines recently published by the BSG. The objective of this study was to compare the performance of both guidelines. Materials and methods: Prospective study carried out between August 1, 2017, and July 31, 2018. Results: 300 patients were included for analysis. 145 underwent ERCP and choledocholithiasis was confirmed in 124 of them (85.5%). Median AST and ALT levels were higher in patients with choledocholithiasis (207 mg/dL and 290 mg/dL). The rate of post-ERCP complications was 5.5%. Multivariate analysis found no significant association for any predictor of CDL. Regarding the "high probability" score, the BSG guidelines had sensitivity of 65% and specificity of 33%, while the ASGE guidelines had sensitivity of 74% and specificity of 28%. Both guidelines were less efficient for "intermediate probability". Conclusions: The ASGE and BSG criteria do not perform well in the population studied to determine whether they had CDL. The ASGE guidelines had a better overall performance than the BSG guidelines.