Results: 1938

Analysis of Heart Rate Variability Before and During Tilt Test in Patients with Cardioinhibitory Vasovagal Syncope

Arq. bras. cardiol; 107 (6), 2016
Abstract Background: Cardioinhibitory vasovagal response is uncommon during the tilt test (TT). Heart rate variability (HRV) by use of spectral analysis can distinguish patients with that response. Objective: To compare the HRV in patients with cardioinhibitory vasovagal syncope (case group - G1) with ...

Prevalence of vitamin B12 deficiency in type 2 diabetic patients using metformin: a cross-sectional study

Säo Paulo med. j; 134 (6), 2016
ABSTRACT: CONTEXT AND OBJECTIVE: The prevalence of vitamin B12 deficiency varies from 5.8% to 30% among patients undergoing long-term treatment with metformin. Because of the paucity of data on Brazilian patients, this study aimed to determine the frequency of B12 deficiency and related factors among B...

Acoustic radiation force impulse (ARFI) elastography compared with biopsy for evaluating hepatic fibrosis after liver transplantation: a cross-sectional diagnostic study

Säo Paulo med. j; 134 (6), 2016
ABSTRACT CONTEXT AND OBJECTIVE: Biopsies are used after liver transplantation to evaluate fibrosis. This study aimed to evaluate the elasticity of transplanted livers by means of a non-invasive examination, acoustic radiation force imaging (ARFI) elastography, correlating the results with the histologi...

Number of leprosy reactions during treatment: clinical correlations and laboratory diagnosis

Abstract INTRODUCTION: The occurrence of leprosy reactions, a common event during treatment, may be mostly related to the action of multidrug therapy on Mycobacterium leprae. The clinical and laboratory monitoring of patients with reactions is important, since collecting data that assists in predicting ...

The amount of spermatic cord rotation magnifies the time-related orchidectomy risk in Intravaginal testicular torsion

Int. braz. j. urol; 42 (6), 2016
Abstract Purpose To investigate the roles of age, testicular rotation and time in the surgical outcome of intravaginal testicular torsion (iTT). Patients and Methods We retrieved the records of all iTT patients treated in our unit from January 2012 to January 2014. Explanatory variables were: age (year...

Rectal cancer survival in a Brazilian Cancer Reference Unit

Colorectal cancer is one of the most common malign tumors in men and women all over the world. In spite of prevention advances in the last few years, worldwide incidence remains significant, about one million per year. Objectives: Evaluate rectal cancer survival in patients diagnosed and surgically trea...

Marginal microleakage in Bulk Fill resins

Introduction: Despite advances and innovations in restorative dentistry, microleakage remains one of the main problems in this area. Objective: To evaluate in vitro marginal microleakage of Bulk Fill resins in class II cavities, with cervical termination in the dentin. Material and method: Cavities, st...

Efecto del 27- hidroxicolesterol en la acción antiplaquetaria de estradiol en mujeres postmenopáusicas

Rev. méd. Chile; 144 (11), 2016
Background: The decline of estrogen levels increases cardiovascular risk in women. Platelets express estrogen receptors and 17β-estradiol- (E2) can produce a protective effect on thrombus formation. The hydroxylation of cholesterol generates several sterols and 27-hydroxycholesterol (27HC) predomina...

Ser físicamente activo modifica los efectos nocivos del sedentarismo sobre marcadores de obesidad y cardiometabólicos en adultos

Rev. méd. Chile; 144 (11), 2016
Background: Sedentary behavior is a major risk factor for cardiovascular disease and mortality. Aim: To investigate whether the associations between sedentary behavior and cardiometabolic markers differs across physical activity levels. Materials and Methods: Cross sectional study of 314 participants age...

Percepción del ambiente educacional en dos escuelas de medicina con currículo tradicional: Estudio longitudinal

Rev. méd. Chile; 144 (11), 2016
Background: To establish an educational environment that ensures the quality of the teaching-learning process is a challenge for any educational institution. The questionnaire DREEM (Dundee Ready Educational Environment Measure) is used to identify strengths and weaknesses of an educational environment a...