[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.

[Quality indicators for colonoscopy in the Peruvian Japanese Policlinic: linked factors].

Introduction: Colonoscopy is the gold standard for the diagnosis of diseases of the colon and rectum and the primary prevention test for colon cancer. The main indicators of quality in colonoscopy are the rate of complete colonoscopy and the rate of detected adenomas.

Objectives: We aimed to know the rates of cecal intubation and detection of adenomas and to identify factors related to these two quality indicators in colonoscopies performed in the Peruvian Japanese Policlinic during 2007.

[Risk factors for the progression of chronic hepatitis C virus infection].

The Hepatitis C virus has emerged over the last two decades as the cause of the second greatest viral infection epidemic after the human immunodeficiency virus (HIV). A significant characteristic of the infection with the Hepatitis C virus is the variable course of its natural history. About 80% of the people who acquire this agent develop a chronic infection, with varying degree of liver damage, including cirrhosis and even hepatocelular carcinoma.