Impact of the COVID-19 Pandemic on Students' Motivation in Relation to Asynchronous Anatomy Video Lectures.

Objectives: This study aimed to investigate medical students' motivation in relation to asynchronous anatomy video lectures, carried out during COVID-19 remote teaching.

Methods: Repeated cross-sectional modified Instructional Materials Motivation Survey questionnaire, validated in Brazil, was applied to 255 students attending the first semester of the undergraduate medical course at the José do Rosário Vellano University, in June 2020 and November 2020. The data were analyzed considering the 95% confidence level as significant ( < 0.

Gastric emptying before and after cholecystectomy in patients with cholecystolithiasis.

Background/aims: The objective of the present study was to measure gastric emptying time of solids and semisolids in dyspeptic individuals with cholecystolithiasis before and 6 months after cholecystectomy in order to determine whether cholecystectomy interferes with gastric emptying.

Methodology: A prospective, self-pairing study was conducted on 29 patients selected according to appropriate inclusion and exclusion criteria. Gastric emptying time of solids and semisolids was determined before and six months after laparoscopic cholecystectomy by the 13C-octanoic acid and 13C-acetate breath tests, respectively.

Gastric emptying of solids and semi-solids in morbidly obese and non-obese subjects: an assessment using the 13C-octanoic acid and 13C-acetic acid breath tests.

Background: It has been suggested that obesity is associated with an altered rate of gastric emptying. The objective of the present study was to determine whether the rates of solid and semi-solid gastric emptying differ between morbidly obese patients and lean subjects.

Methods: The Gastric-emptying time (GET) of solid and semi-solid meals were compared between lean healthy subjects and morbidly obese patients enrolled in two previously published studies.

Botulinum A toxin injected into the gastric wall for the treatment of class III obesity: a pilot study.

Background: Obesity represents a major public health problem in western countries. Initial studies suggest that injection of botulinum A toxin (Btx-A) into the antropyloric region inhibits propulsive contractions of the antral pump, with delay in gastric emptying, early satiety and weight loss.

Methods: After approval by the University Ethics Committee, we prospectively evaluated 12 patients with class III obesity divided into 4 groups of 3 patients each.