Impact of time to esophagogastroduodenoscopy in patients with nonvariceal upper gastrointestinal bleeding: A systematic review and meta-analysis.

INTRODUCTION: There is conflicting evidence regarding the benefit of urgent esophagogastroduodenoscopy (EGD) for reducing mortality and rebleeding, in the context of nonvariceal upper gastrointestinal bleeding. AIM: To describe the decrease in the risk for mortality, rebleeding, and red blood cell transfusion, with the performance of urgent EGD, in patients with nonvariceal upper gastrointestinal bleeding. MATERIALS AND METHODS: We carried out a search for cohort studies or controlled clinical trials, published from December 1966 to May 2020, that compared urgent EGD versus elective EGD in the management of adults with nonvariceal upper gastrointestinal bleeding, utilizing the MEDLINE, Embase, LILACS, and Cochrane Central Register of Controlled Trials databases. Our primary outcome was the hospital mortality comparison. The incidence of rebleeding and the mean number of red blood cell units transfused were also compared. A random effects model was utilized for the meta-analysis. RESULTS: Twenty-one studies that met the eligibility criteria were included, involving 489,622 patients. We found no differences in the mortality of subjects exposed to urgent EGD versus elective EGD (RR 1.12 [0.72-1.72]). There was a significant increase in the risk for rebleeding (RR 1.30 [1.05-1.60]) in the subjects exposed to urgent EGD, and fewer red blood cell units were transfused in those patients (RR 0.52 [0.05-0.99]). CONCLUSIONS: Urgent EGD in subjects with nonvariceal upper gastrointestinal bleeding does not appear to have a significant impact on short-term mortality.

Iron-deficiency anemia as a subclinical celiac disease presentation in an Argentinian population. / La anemia ferropénica como presentación de enfermedad celíaca subclínica en una población argentina.

BACKGROUND: There is a wide heterogeneity in the reports of celiac disease prevalence in iron-deficiency anemia patients. AIM: To determine the prevalence of celiac disease in patients with iron-deficiency anemia. MATERIALS AND METHODS: Adult patients with a diagnosis of iron-deficiency anemia were enrolled for upper endoscopy with duodenal biopsies. Healthy volunteers that underwent upper endoscopy were enrolled as controls. RESULTS: A total of 135 patients with iron-deficiency anemia and 133 controls were enrolled. Celiac disease prevalence was higher in the iron-deficiency anemia group [11.11 vs. 1.51%, OR: 8.18 (1.83-36.55), P=.001). Of the celiac disease patients in the iron-deficiency anemia group, 73.3% had at least one endoscopic sign suggesting villous atrophy, whereas 100% of the celiac disease patients in the control group presented with at least one endoscopic sign. CONCLUSIONS: Patients with iron-deficiency anemia have an increased risk for celiac disease. Up to 25% of these patients may not present any endoscopic sign suggesting villous atrophy.

Small intestinal bacterial overgrowth prevalence in celiac disease patients is similar in healthy subjects and lower in irritable bowel syndrome patients.

BACKGROUND: Untreated celiac disease has traditionally been linked to a greater risk for small intestinal bacterial overgrowth, but the existing evidence is inconclusive. AIMS: To compare the prevalence of small intestinal bacterial overgrowth in subjects with celiac disease compared with control subjects and patients with irritable bowel syndrome. MATERIAL AND METHODS: The study included 15 untreated celiac disease patients, 15 subjects with irritable bowel syndrome, and 15 healthy controls. All enrolled patients underwent a lactulose breath test measuring hydrogen and methane. Small intestinal bacterial overgrowth was defined according to previously published criteria. RESULTS: No differences were found in relation to age or sex. The prevalence of small intestinal bacterial overgrowth was similar between the celiac disease patients and the controls (20 vs. 13.33%, P=NS), whereas it was higher in patients with irritable bowel syndrome (66.66%, P<05). CONCLUSION: There was no difference in the prevalence of small intestinal bacterial overgrowth between the untreated celiac disease patients and healthy controls.

Impact of the endoscopic teaching process on colonic adenoma detection.

BACKGROUND: There has been little reported experience in the Latin American hospital setting in relation to the impact of the endoscopic training process on colonoscopy quality. AIMS: To determine the effect that training in the technique of colonoscopy has on adenoma detection in an Argentinian teaching hospital. MATERIAL AND METHOD: Within the time frame of July 2012 and July 2013, 3 physicians received training in colonoscopy from 4 experienced endoscopists. The colonoscopies performed by the supervised trainees were compared with those carried out by the experienced endoscopists. RESULTS: A total of 318 colonoscopies performed by any one of the 3 supervised trainees and 367 carried out by any one of the experienced endoscopists were included. The univariate analysis showed a non-significant difference in the detection rate of adenomas (30.4 vs. 24.7%, P=.09). In the multivariate analysis, the detection rate of adenomas was significantly higher in the colonoscopies performed by one of the 3 trainees (odds ratio = 1.72 [1.19-2.48]). CONCLUSIONS: The supervised involvement of endoscopic trainees has a positive effect on adenoma detection.

Influencia de la enfermedad periodontal en la evaluación de los trastornos funcionales digestivos / The influence of periodontal disease in the evaluation of functional digestive disorders

Introducción: existe evidencia de una asociación entre las alteraciones de la flora bacteriana intestinal y el síndromde intestino irritable (SII). Dichas alteraciones pueden ser medidas en forma indirecta mediante el test de hidrógeno en aire espirado con lactulosa (THAEL). La flora bacteriana puede verse también alterada en sujetos con enfermedad periodontal (EP). Objetivo: evaluar la influencia de la EP sobre los resultados del THAEL. Materiales y métodos: se incluyeron pacientes con diagnóstico de SII, alo que se les realizó un THAEL. Se evaluó la presencia de EP según la clasificación de la American Dental Association. Se compararon los resultados del THAEL, medidos como área bajo la curva de concentración de hidrógeno/tiempo (ABC) entre aquellos con y sin EP. Resultados: fueron incluidos 51 pacientes, en su mayoría mujeres. El grupo con EP presentó mayor edad. Encontramos un valor basal de hidrógeno significativamente mayor en aquellos con EP que en el grupo sin EP [4 (2-6) vs 1 (1-3.5), p=0.04], pero con el valor de ABC similar entre ambos grupos [2232 (162-5184) vs 2088 (216-6071), p=0.5]. Conclusión: la salud bucal parece ser relevante en el estudio de las alteraciones de la flora bacteriana intestinal, llevando a cambios en los resultados del THAEL.