BackgroundColonoscopy is the most frequent exam used to evaluate colonic mucosa, allowing the diagnosis and treatment of many diseases. The appropriate bowel preparation is indispensable for the realization of colonoscopy. Therefore, it is necessary the use of laxative medications, preferentially by oral administration.AimTo compare two medications used in bowel preparation in adult patients going to ambulatory colonoscopy and to analyze the patients' profile.MethodsA double-blind prospective study with 200 patients, randomized in two groups: one that received polyethilene glycol and another that received lactulose. The patients answered to questionnaires to data compilation, as tolerance, symptoms and complications related to preparation. Besides, it was also evaluated the prepare efficacy related to the presence of fecal residue.ResultsIntestinal habit alterations and abdominal pain were the main reasons to realize the exams and hypertension was the most prevalent comorbidity. Ten percent of the ones who received lactulose didn't get to finish the preparation and 50% considered the taste "bad, but tolerable". The most common subjective symptom after the medication was nausea, especially after lactulose. During the exam, most of the patients who used lactulose had a "light discomfort" and the ones who used polyethilene glycol considered the discomfort as "tolerable". The quality of the preparation was good in 75%, undependable of the medication that was used.ConclusionPolyethilene glycol was more tolerable when compared to lactulose, without difference on the quality of the preparation.

The Covid-19 pandemic highlighted the need for Global Health (GH) understanding between medical science undergraduates and the need for new online teaching methods during social isolation. This paper aims to report the experience of an international webinar on the perception of medical science undergraduates from Brazil, Italy, France, and Switzerland about the Covid-19 pandemic. This activity allowed students comprehension of different realities faced by other countries, education on global epidemiology, comparison government and university maneuvers to handle the new coronavirus disease, and exchange of experiences among medical undergraduates concerning the ways of maintaining their mental well-being. Thereupon, it is necessary to implement GH activities within the medical curricula to promote a qualified education that addresses the needs of the digital and globalized world.