Results: 77

A Multivariate Model for Prediction of Obstructive Coronary Disease in Patients with Acute Chest Pain: Development and Validation

Arq. bras. cardiol; 108 (4), 2017
Abstract Background: Currently, there is no validated multivariate model to predict probability of obstructive coronary disease in patients with acute chest pain. Objective: To develop and validate a multivariate model to predict coronary artery disease (CAD) based on variables assessed at admission to...

Ressonância magnética e doença coronariana: quando o exame faz a diferença?

O diagnóstico de doença coronariana e a quantificação de isquemia miocárdica tem se tornado cada vez mais necessário. Apesar de ainda haver controvérsia, estudos clínicos têm demonstrado que pacientes com carga isquêmica moderada ou alta têm pior prognóstico, a despeito de terapia clínica co...

Dobutamine Stress Echocardiography Safety in Chagas Disease Patients

Arq. bras. cardiol; 108 (2), 2017
Abstract Background: A few decades ago, patients with Chagas disease were predominantly rural workers, with a low risk profile for obstructive coronary artery disease (CAD). As urbanization has increased, they became exposed to the same risk factors for CAD of uninfected individuals. Dobutamine stress e...

Coronary arteriovenous fistulas in adult patients: surgical management and outcomes

Abstract Objective: The aim of this study was to describe the demographic, clinical and anatomic characteristics of coronary arteriovenous fistulas in adult patients who underwent open cardiac surgery and to review surgical management and outcomes. Methods: Twenty-one adult patients (12 female, 9 male;...

Síndrome de ALCAPA en adulto: caso clínico

Rev. méd. Chile; 145 (1), 2017
Anomalies of the origin of coronary arteries are detected in 0.5-1.5% of all angiographies. Anomalous origin of the left main trunk is the most uncommon and its origin from pulmonary artery in adults is exceptional, usually because it is associated with a short survival. We report a 49-year-old female, p...

Case Report: Multivessel Coronary Disease Assessment with SPECT 99mTc-Sestamibi and Rubidium-82 PET/CT

Arq. bras. cardiol; 108 (1), 2017

Comparative Study between Perfusion Changes and Positive Findings on Coronary Flow Reserve

Arq. bras. cardiol; 108 (1), 2017
Abstract Background: Functional assessment of coronary artery obstruction is used in cardiology practice to correlate anatomic obstructions with flow decrease. Among such assessments, the study of the coronary fractional flow reserve (FFR) has become the most widely used. Objective: To evaluate the cor...

Taquicardia de complejos QRS anchos y patrón morfológico de "aberración"

Rev. costarric. cardiol; 18 (1/2), 2016
ResumenSe presenta el caso de un paciente portador de enfermedad arterial coronaria que presentó varios episodios de taqui cardia regular de complejos anchos, de múltiples morfologías. Se discute el diagnóstico electrocardiográfico diferencial....

Influence of Angiotensin-Converting-Enzyme Gene Polymorphism on Echocardiographic Data of Patients with Ischemic Heart Failure

Arq. bras. cardiol; 107 (5), 2016
Abstract Background: Association between angiotensin-converting-enzyme (ACE) gene polymorphisms and different clinical and echocardiographic outcomes has been described in patients with heart failure (HF) and coronary artery disease. Studying the genetic profile of the local population with both disease...

Fragmented QRS for Risk Stratification in Patients Undergoing First Diagnostic Coronary Angiography

Arq. bras. cardiol; 107 (4), 2016
Abstract Background: Only a small proportion of patients referred for coronary angiography with suspected coronary artery disease (CAD) have the diagnosis of obstructive CAD confirmed by the exam. For this reason, further strategies for risk stratification are necessary. Objective: To investigate the r...