[Endoscopic interventions to improve serrated lesions detection rate during colonoscopy].

Colorectal cancer (CRC) is one of the most common causes of cancer mortality in the world. Serrated lesions are responsible for 10 to 20% of all CRCs. Serrated polyps, particularly sessile serrated adenomas (SSA) and traditional serrated adenomas (TSA), have a subtle appearance and proximal location, and therefore have a high miss rate.

[Factors related to a suboptimal bowel preparation for colonoscopy].

Introduction: Colonoscopy is the standard method for the evaluation of the colon. A suitable intestinal cleaning is critical for the effectiveness and security of the procedure, but unfortunately there is a high proportion of suboptimal bowel preparation.

Objective: To identify factors related to suboptimal bowel preparation.

[Related factors to re-bleeding and mortality in cirrhotic patients with acute variceal bleeding at Hipolito Unanue Hospital, Lima, Peru].

Objectives: To determine related factors to 5 days re-bleeding and 6 week-mortality of an episode of variceal bleeding in cirrhotic patients.

Material And Methods: Observational, descriptive, co relational, retrospective study. In this study were included the cirrhotic patients who entered to Hipolito Unanue Hospital, Lima, Peru, between January 2006 and February 2012 with suspicion of variceal bleeding.