ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY (ERCP): ANALYSIS OF THE EFFECTIVENESS AND SAFETY OF THE PROCEDURE IN THE PATIENT WITH ROUX-EN-Y GASTRIC BYPASS.

Background: Obesity can be treated with bariatric surgery; but, excessive weight loss may lead to diseases of the bile duct such as cholelithiasis and choledocholithiasis. Endoscopic retrograde cholangiopancreatography is a diagnostic and therapeutic procedure for these conditions, and may be hampered by the anatomical changes after surgery.

Aim: Report the efficacy and the safety of videolaparoscopy-assisted endoscopic retrograde cholangiopancreatography technique in patients after bariatric surgery with Roux-en-Y gastric bypass.

[Comparative study of efficacy and safety between propofol and midazolam for sedation during colonoscopy].

Objective: To compare safety and efficacy of propofol with midazolam for deep sedation in the colonoscopy.

Methods: In a prospective way, 66 patients underwent colonoscopy--50 patients received propofol in an average dose of 3,25 mgxkg-1 and 16 patients (control group) received midazolam with total average dose of 2,05 mgxkg-1. The dose of medication was titrated according to patient need.