Coronary artery bypass surgery in Brazil: analysis of the national reality through the bypass registry

Abstract Introduction: Coronary artery bypass grafting (CABG) is the most frequently performed heart surgery in Brazil. Recent international guidelines recommend that national societies establish a database on the practice and results of CABG. In anticipation of the recommendation, the BYPASS Registry was introduced in 2015. Objective: To analyze the profile, risk factors and outcomes of patients undergoing CABG in Brazil, as well as to examine the predominant surgical strategy, based on the data included in the BYPASS Registry. Methods: A cross-sectional study of 2292 patients undergoing CABG surgery and cataloged in the BYPASS Registry up to November 2018. Demographic data, clinical presentation, operative variables, and postoperative hospital outcomes were analyzed. Results: Patients referred to CABG in Brazil are predominantly male (71%), with prior myocardial infarction in 41.1% of cases, diabetes in 42.5%, and ejection fraction lower than 40% in 9.7%. The Heart Team indicated surgery in 32.9% of the cases. Most of the patients underwent cardiopulmonary bypass (87%), and cardioplegia was the strategy of myocardial protection chosen in 95.2% of the cases. The left internal thoracic artery was used as a graft in 91% of the cases; the right internal thoracic artery, in 5.6%; and the radial artery in 1.1%. The saphenous vein graft was used in 84.1% of the patients, being the only graft employed in 7.7% of the patients. The median number of coronary vessels treated was 3. Operative mortality was 2.8%, and the incidence of cerebrovascular accident was 1.2%. Conclusion: CABG data in Brazil provided by the BYPASS Registry analysis are representative of our national reality and practice. This database constitutes an important reference for indications and comparisons of therapeutic procedures, as well as to propose subsequent models to improve patient safety and the quality of surgical practice in the country.

Relato de caso sobre comunicação interventricular pós-infarto agudo do miocárdio / Case report on acute postinfarction myocardial interventricular septal rupture

O presente artigo relata dois casos de pacientes, os quais foram admitidos na emergência do Instituto de Moléstias Cardiovasculares (IMC) com dor tipicamente anginosa, caracterizada como dor retroesternal em aperto, com irradiação para a face medial do braço esquerdo e relacionada ao esforço, com melhora no repouso. No exame físico, apresentavam taquicardia e sudorese. O eletrocardiograma evidenciou sinais de isquemia miocárdica em ambos os pacientes. Após as medidas iniciais serem tomadas, um dos pacientes foi submetido à terapia trombolítica e o outro à angioplastia para implantação de stent . Mais tarde, foi identificada a comunicação interventricular (CIV), seguido da necessidade de correção cirúrgica da mesma. Ambos os pacientes evoluíram bem, apesar da alta taxa de mortalidade desta condição

This paper reports two cases of patients who were admitted to the emergency room of the Instituto de Moléstias Cardiovasculares (IMC) with typically anginal pain, characterized by tight retrosternal pain radiating to the inside left arm, related to stress and improving with rest. Physical examination showed tachycardia and excessive sweating. Electrocardiogram showed signs of myocardial ischemia in both patients. After the initial measures were taken, one of the patients received thrombolytic therapy, and the other angioplasty for stent implantation. Later, interventricular septum rupture (IVSR) was identified, followed by the need for surgery to correct it. Both patients recovered well, despite the high mortality rate of this condition

The brazilian registry of adult patient undergoing cardiovascular surgery, the bypass project: results of the first 1,722 patients

Abstract Objective: To report the early results of the BYPASS project - the Brazilian registrY of adult Patient undergoing cArdiovaScular Surgery - a national, observational, prospective, and longitudinal follow-up registry, aiming to chart a profile of patients undergoing cardiovascular surgery in Brazil, assessing the data harvested from the initial 1,722 patients. Methods: Data collection involved institutions throughout the whole country, comprising 17 centers in 4 regions: Southeast (8), Northeast (5), South (3), and Center-West (1). The study population consists of patients over 18 years of age, and the types of operations recorded were: coronary artery bypass graft (CABG), mitral valve, aortic valve (either conventional or transcatheter), surgical correction of atrial fibrillation, cardiac transplantation, mechanical circulatory support and congenital heart diseases in adults. Results: 83.1% of patients came from the public health system (SUS), 9.6% from the supplemental (private insurance) healthcare systems; and 7.3% from private (out-of -pocket) clinic. Male patients comprised 66%, 30% were diabetics, 46% had dyslipidemia, 28% previously sustained a myocardial infarction, and 9.4% underwent prior cardiovascular surgery. Patients underwent coronary artery bypass surgery were 54.1% and 31.5% to valve surgery, either isolated or combined. The overall postoperative mortality up to the 7th postoperative day was 4%; for CABG was 2.6%, and for valve operations, 4.4%. Conclusion: This first report outlines the consecution of the Brazilian surgical cardiac database, intended to serve primarily as a tool for providing information for clinical improvement and patient safety and constitute a basis for production of research protocols.