Publications by authors named "Fernando Ribas"

Article Synopsis
  • Adenosine is an antiarrhythmic drug used to treat supraventricular tachycardia, but it can cause serious complications, including non-sustained polymorphic ventricular tachycardia and myocardial infarction, even in a healthy heart.
  • A 46-year-old woman experienced severe chest pain and low blood pressure after receiving adenosine, which led to temporary heart rhythm issues but eventually returned to normal.
  • The case serves as a warning for emergency physicians to be aware of possible risks when treating patients with adenosine for heart rhythm problems, especially if there’s no obvious heart disease present.
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Aims: To analyse the association of myocardial oedema (ME), observed as high T2 signal intensity (HT2) in cardiac magnetic resonance imaging, with the release of cardiac biomarkers, ventricular ejection, and clinical outcomes after revascularization.

Methods And Results: Patients with stable coronary artery disease with the indication for revascularization were included. Biomarker levels [troponin I (cTnI) and creatine kinase MB (CK-MB)] and T2-weighted and late gadolinium enhancement (LGE) images were obtained before and after the percutaneous or surgical revascularization procedures.

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Background: The correlation between the release of cardiac biomarkers after revascularization, in the absence of late gadolinium enhancement (LGE) or myocardial edema, and the development of myocardial tissue damage remains unclear. This study sought to identify whether the release of biomarkers is associated with cardiac damage by assessing myocardial microstructure on T1 mapping after on-pump (ONCAB) and off-pump coronary artery bypass grafting (OPCAB).

Methods: Seventy-six patients with stable multivessel coronary artery disease (CAD) and preserved systolic ventricular function were included.

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Importance: Glycated hemoglobin (HbA1c) values are used to guide glycemic control, but in patients with type 2 diabetes and multivessel coronary artery disease (CAD), the association of the longitudinal values of HbA1c with cardiovascular outcomes is unclear.

Objective: To assess whether longitudinal variation of HbA1c is associated with cardiovascular events in long-term follow-up among patients with diabetes and multivessel CAD.

Design, Setting, And Participants: This cohort study included 888 patients with type 2 diabetes and multivessel CAD in the Medicine, Angioplasty, or Surgery Study (MASS) Registry of the Heart Institute of the University of São Paulo from January 2003 to December 2007.

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Myocardial ischemia is considered the cornerstone of the treatment of patients with coronary artery disease (CAD). Although the deleterious effects of myocardial infarction, the maximum expression of ischemia, have been extensively studied and described, the clinical effects of chronic, documented myocardial ischemia are not completely clarified. The first studies that compared therapies for coronary disease focused on the presence of anatomical features and assessed ischemia based on the interpretation of the findings of obstructive atherosclerotic lesions.

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The aim of this study was to evaluate the prevalence of Leishmania infantum infection within a feline population by serologic and molecular methods and to identify associated risk factors. One hundred five cats living outdoors were studied. Sera were tested for IgG antibodies against L.

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