[Autoimmune hepatitis induced by isotretionine].

We describe a case of a teenage patient with the diagnosis of drug induced autoimmune hepatitis. The patient is a 16 years old female, with the past medical history of Hashimoto’s hypothyroidism controlled with levothyroxine, who started treatment with Isotretionin (®Accutane) 20 mg q/12 hours for a total of 3 months for the treatment of severe acne. The physical examination was within normal limits and the results of the laboratory exams are: Baseline values of ALT 28 U/L, AST 28 U/L.

[Validation of the Rockall score in elderly patients with non variceal upper gastrointestinal bleeding in a third level general hospital].

Objective: To validate the Rockall score in elderly patients with non variceal upper gastrointestinal bleeding, in terms of mortality and recurrent bleeding at 30 days follow-up.

Material And Methods: Patients older than 60 year-old, with non variceal upper gastrointestinal bleeding demonstrated by endoscopy, who were attended in a third level general hospital from June 2009 to June 2013, were included. Data was analyzed with the ROC (Receiver Operating Characteristic) curve.

[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.

[Frequency and mortality by rebleeding in cirrhotic patients treated for bleeding esophagic varices in two hospitals in Lima Peru during years 2009 to 2011].

Unlabelled: During the first 6 weeks after a variceal hemorrhage there is a 30-40% of probability of recurrence and those who rebleed 20- 30% die. Passed this period, the risk of rebleeding is of 60% and reaches a mortality of 60-70% in two years without treatment.

Objective: Describe the frequency of rebleeding and mortality due to rebleeding in cirrhotic patients treated for variceal hemorrhage at Endoscopic Centers of Hospital Nacional Cayetano Heredia, Lima, Peru and Hospital Nacional Arzobispo Loayza, Lima, Peru during the years 2009-2011.

[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.

[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.