[Independent risk factors for severity and mortality in lower gastrointestinal bleeding].

Unlabelled: In lower gastrointestinal bleeding (LGIB), it is very important to stratify the risk of LGIB for a proper management.

Objective: Identity the independent risk factors to mortality and severity (require critical care, prolonged hospitalization, reebleding, re hospitalization, politrasfusion, surgery for bleeding control) in LGIB.

Materials And Methods: It is an analytic prospective cohort study, performed between June 2016 and April 2018 in a tertiary care hospital.

[Accuracy of ASGE predictors in diagnosis of coledocolithiasis in a public hospital of Lima, Peru].

Background: The predictors proposed by the American Society of Gastrointestinal Endoscopy (ASGE) are commonly used topredict the presence and management of choledocholithiasis.

Objective: To evaluate the performance and precision of thepredictors of choledocholithiasis proposed by ASGE.

Materials And Methods: Prospective and longitudinal study performed ata third level hospital during January 2015 to June 2017.

[Duodenal melanoma: a case report and review of the literature].

We report the case of a male patient of 75 years old who presents with abdominal pain, hyporexia, early satiety, general malaise and watery stools, admitted in emergency for an episode of syncope. On physical examination, hepatomegaly of 6cm below the right costal margin was detected. CT scan showed multiple liver metastases.

[Sphincterotomy followed by papillary large balloon in the management of cholecolithiasis. Therapeutic success and safety in a Lima-Peru hospital].

Objective: We present a descriptive analysis of our cases of sphincterotomy followed by papillary large balloon dilation in a single session (ES-LBD) in the management of difficult to extract calculi, with the objective of assessing rates of therapeutic success and complications in local experience.

Material And Methods: ERCP procedures with ES-LBD performed for choledocholithiasis between January 2009 and December 2014 in patients older than 18 years and without preexistent sphincterotomy were selected from records of the Gastroenterology Service at Cayetano Heredia National Hospital. A descriptive analysis of therapeutic success and complications was performed.

[Clinical-radiological characteristics and explore the association between therapeutic success in patients undergoing ERCP and age in Cayetano Heredia Hospital, Lima, Peru].

Objective: To compare the clinical-radiological characteristics and explore the association between therapeutic success in patients undergoing ERCP and age in Cayetano Heredia Hospital, Lima, Peru.

Materials And Methods: Retrospective, descriptive study based on the review of records of patients undergoing ERCP between the years 2008 to 2014. These were divided into two groups: greater than or equal to 60 years (group 1) and less than 60 years (group 2).

[BISAP-O y APACHE-O: utility in predicting severity in acute pancreatitis in modified Atlanta classification].

Objective: To assess the BISAP and APACHE II scores in predicting severity according to the 2012 Atlanta classification and whether the obesity factor added to these scores improves prediction.

Material And Methods: A prospective study between January 2013 and April 2014 including all patients with acute pancreatitis was performed according to the new Atlanta 2012 classification. ROC curves were fabricated for BISAP, BISAP-O, APACHE-II scores and Apache O and appropriate cutoffs were selected to the sensitivity, specificity, PPV, NPV, RPP and RPN.

[The usefulness of the Baylor score in patients with upper gastrointestinal bleeding in a hospital in Lima, Peru].

Objective: To demonstrate the usefulness of the Baylor score in patients with upper gastrointestinal bleeding (UGB) due to peptic ulcer, in terms of mortality and recurrent bleeding at 30 days follow-up.

Material And Methods: This study has collected information prospectively into a registration form from medical histories. Patients included were those who came to the "Hospital Nacional Cayetano Heredia", Lima, Peru, in the period between June 2009 and May 2011, with UGB due to peptic ulcer demonstrated by endoscopy.

[Risk factors associated to mortality by upper GI bleeding in patients from a public hospital. A case control study].

Objective: Identify and establish risk factors associated with mortality secondary to upper gastrointestinal bleeding up to 30 days after the episode, at the Hospital Nacional Cayetano Heredia.

Material And Methods: A retrospective analytic observational case-control study was made with a case: control proportion of 1:3, analyzing 180 patient from which 135 were the controls and 45 the cases. It was determined by biological plausibility as potential risk factors to 14 variables, with which were performed bivariate and multivariate logistic analyses.

[Validation of a modified version of SODA questionnaire (severity of dyspepsia assessment) adapted to Peru for evaluating evolution of symptoms severity in patients with dyspepsia].

Objectives: To validate SODA (severity of dyspepsia assessment) questionnaire in our population for evaluating symptoms severity in patients with dyspepsia.

Materials And Methods: Content and appearance validity were measured, and then a modified questionnaire was developed. A pilot test was made and reliability, construct validity and responsiveness were measured.

[Tension pneumoperitoneum as a complication of endoscopic ultrasound guided transgastric drainage of pancreatic pseudocyst: case report and review of the literature].

Unlabelled: Pancreatic pseudocyst develops as a complication in some cases of pancreatitis. Endoscopic drainage is one of the available therapies, but it has limitations when a visible compression over the gastric or duodenal wall is not present, or when portal hypertension exists. Endoscopic ultrasonography allows for a guided approach even in cases where external compression over the gastrointestinal tract is barely visible or non-existent, and it also helps to prevent vascular injury during puncture of the fluid collection.

[Migration of gastrostomy button as a cause of duodenal ulcer and upper digestive bleeding].

PEG or Percutaneous endoscopic gastrostomy is a well known and widely used procedure. With adequate methodology of instrumentation and follow up it has very low rate of complications directly related or non-related to the procedure. Such complications include accidental retirement, wound infection, deterioration of tube, migration to sub-cutaneous tissue and others.

[Prevalence of Helicobacter pylori in a private practice setting in Lima, Peru. Sensitivity of biopsies and rapid urease test].

Introduction: The prevalence of Helicobacter pylori in high and mid social-economic classes in Peru is trending down. This prevalence has not been evaluated at our institution in several years. The sensitivity of biopsies of the different anatomic areas of the stomach has not been evaluated either.

["Influence of eradication of Helicobacter pylori in patients with non-ulcer dyspepsia in a hospital of Lima"].

Objective: To determine whether erradication of Helicobacter pylori (HP) infection from gastric mucosae is associated with changes in symptoms severity and satisfaction degree in patients with non-ulcer dyspepsia (NUD).

Methods: Prospective cohort study in patients with NUD and HP infection that were evaluated for six months following treatment, made up of 70 HP Negative patients in whom HP infection was erradicated, and 28 HP Positive patients in whom infection was not eradicated following treatment. Dyspeptic symptoms were assessed using SODA scale.

[Expected and unexpected adverse events in the therapeutic endoscopy of the bile duct (ERCP): experience of a private national center in 1356 consecutive cases (1999-2008)].

We report our experience of 10 years in therapeutic procedures of the bile duct (ERCP), describing adverse events or major and minor complications. We describe the associated factors, management, and risk age groups. We comment on the measures taken to prevent and treat them.

[Hemoconcentration, Apache II and Ranson as early predictors of severity in patients with acute pancreatitis in a hospital in Lima - Peru].

Objective: Compare hemoconcetration, APACHE II and Ranson scores as early predictors of severity defined by Atlanta criteria in patients with acute pancreatitis at Hospital Nacional Cayetano Heredia.

Materials And Methods: Retrospective descriptive study between December 2009 to November 2010 done using a data collection sheet to gather study relevant information. We classified acute pancreatitis into mild or severe according to Atlanta symposium criteria for organ failure and/or local complications.

[Utility of urease rapid test for detection of Helicobacter pylori in patients with upper gastrointestinal bleeding from peptic ulcer].

Background: Peptic ulcer disease is the main cause of upper gastrointestinal bleeding and Helicobacter pylori is its principal etiology. The sensitivity of the diagnostics tests is low for the detection of H. pylori en the setting of bleeding peptic ulcer.