Publications by authors named "Marcio Guimaraes"
Objective: To determine whether there was an association between delayed medical emergency team calls and mortality after a medical emergency team review.
Design: This was a prospective observational study.
Setting: A university-affiliated tertiary referral hospital in Porto Alegre, Brazil.
Extrahepatic bile duct cancer is an uncommon disease, and few cases are curable by surgery. We report a case of extrahepatic biliary cystadenocarcinoma (BCAC) associated with atrophy of the left hepatic lobe. A 54-year old male was admitted with painless obstructive jaundice and a hepatic palpable mass noticed one month before presentation.
View Article and Find Full Text PDFObjective: This study was designed to evaluate the short-term efficacy of low-level laser therapy (LLLT) for improving pain and function in patients with knee osteoarthritis.
Methods: Forty-seven patients with knee osteoarthritis (79 knees), of both genders, participated in this randomized controlled double-blind clinical trial. They were randomly allocated to two groups: laser group with 25 patients (41 knees) and placebo group with 22 patients (38 knees).
Context And Objective: Increased life expectancy has resulted in growing numbers of elderly patients undergoing heart surgery. This study aimed to identify changes in functional status among older adults undergoing coronary artery bypass grafting.
Design And Setting: Prospective observational cohort study conducted at a level IV private hospital in Brazil.
Objective: To determine the prevalence of ventilator-associated pneumonia in an intensive care unit, as well as to identify related factors and characterize patient evolution.
Methods: This study evaluated 278 patients on mechanical ventilation for more than 24 hours in a university hospital.
Results: Ventilator-associated pneumonia developed in 38.
Objective: To test the hypothesis that the administration of cimetidine will modify the chronotropic response to exercise testing through a random clinical trial.
Methods: The study selected 24 eligible healthy subjects, ages between 20 and 68 years, not athletes, who agreed to undergo cardiopulmonary exercise testing after the administration of placebo and 400 mg of cimetidine twice a day for one week. The tests were performed on a treadmill using a ramp protocol and direct analysis of the expired gases.