IJCS | Volume 32, Nº2, May/June 2019

225 1. Guimarães HP, Avezum Á, Piegas LS. Epidemiologia do infarto agudo do miocárdio. Rev Soc Cardiol Estado de Säo Paulo. 2006;1(1):1-7. 2. Bonow R, Mann D, Zipes D, Libby P. Braunwald . Tratado de doenças cardiovasculares al ROBe. Braunwald: Tratado de doenças cardiovasculares (trad. 9ª ed). Rio de Janeiro:Elsevier;2013. 3. Krogh V, Trevisan M, Panico S, Farinaro E, Mancini M, Menotti A, et al. Prevalence and correlates of angina pectoris in the Italian nine communities study. Epidemiology. 1991;2(1):26-32. 4. Smith W, Kenicer M, Tunstall-Pedoe H, Clark E, Crombie I. Prevalence of coronary heart disease in Scotland: Scottish Heart Health Study. Br Heart J. 1990;64(5):295-8. 5. Harrison's principles of internal medicine. NewYork:McGrawHill; 2008. 6. Brasil. Ministério da Saúde. Datasus. 2015. (Citado em 2016 nov 26). Disponível em: www.datasus.org.br . 7. Chang M, Ahn JM, Lee CW,Cavalcante R, Sotomi Y, Onuma Y, et al. Long-term mortality after coronary revascularization in nondiabetic patients with multivessel disease. J Am Coll Cardiol. 2016;68(1):29-36. 8. Cohen DJ, Van Hout B, Serruys PW, Mohr FW, Macaya C, den Heijer P, et al. Quality of life after PCI with drug-eluting stents or coronary-artery bypass surgery. N Engl J Med. 2011;364(11):1016-26. 9. Farkouh ME, Domanski M, Sleeper LA, Siami FS, Dangas G, Mack M, et al. Strategies for multivessel revascularization in patients with diabetes. N Engl J Med. 2012;367(25):2375-84. 10. Berry JRS, Cunha ABd. Avaliação dos efeitos da reabilitação cardíaca em pacientes pós-infarto do miocárdio. Rev Bras Cardiol.2010;23(2):101-10. V. 11. Piegas LS, Bittar O, HaddadN, Nogueira V. Cirurgia de revascularização miocárdica: resultados do Sistema Único de Saúde. Arq Bras Cardiol. 2009;93(5):555-60. 12. Oliveira TL, Oliveira GM, Klein CH, Souza e Silva NA, Godoy PH. Letalidade e complicações da cirurgia de revascularização miocárdica no Rio de Janeiro, de 1999 a 2003. Arq Bras Cardiol 2010;95(3):303-12. 13. GomesWJ, Moreira RS, Zilli AC, Bettiati Jr CC, Figueira F, Azevedo SS, et al.The he Brazilian Registry of Adult Patient Undergoing Cardiovascular Surgery, the BYPASS Project: Results of the First 1,722 Patients. Braz J Cardiovasc Surg. 2017;32(2):71-6. 14. Fihn SD, Gardin JM, Abrams J, Berra K, Blan Kenship JC, Dallas AP, et al. 2012 ACCF/AHA/ACP/AATS/PCNA/SCAI/STS guideline for the diagnosis and management of patients with stable ischemic heart disease. J Am Coll Cardiol. 2012;60(24):e44-e164. References Lobato et al. Patients undergoing cagb in Pará, Brazil Int J Cardiovasc Sci. 2019;32(3)217-226 Original Article increase the number of patients referred to percutaneous coronary intervention instead of MRS. This would alleviate, at least in part, excessive waiting times for surgery. Further studies are needed to compare the use of both strategies in our institution to identify the group of patients that would benefit most from percutaneous coronary intervention. In addition, limitations of the retrospective cohort design of the study include missing data in the registry database, which may have affected the analysis. Conclusion We found a high mortality rate in patients undergoing MRS, higher than that reported in the literature and in other regions of Brazil. Further studies are needed to determine the causes of these findings and find effective solutions. Author contributions Conception and design of the research: Lobato PHM, Vieira Junior FM, NunesMBG, GalucioVAQL. Acquisition of data: Lobato PHM, Vieira Junior FM, Nunes MBG, Galucio VAQL, Barreto EL. Analysis and interpretation of the data: Lobato PHM, Vieira Junior FM, Nunes MBG, Galucio VAQL. Statistical analysis: Lobato PHM, Vieira Junior FM, Nunes MBG, Galucio VAQL. Obtaining financing: Lobato PHM, Vieira Junior FM, Nunes MBG, Galucio VAQL. Writing of the manuscript: Lobato PHM, Vieira Junior FM, Nunes MBG, Galucio VAQL. Critical revision of the manuscript for intellectual content: Lobato PHM, Vieira Junior FM, Nunes MBG, Galucio VAQL. Potential Conflict of Interest No potential conflict of interest relevant to this article was reported. Sources of Funding This study was funded by the researchers themselves. Study Association This article is part of the thesis of medical residency submitted by Patrick Hernani Matias Lobato, from Fundação Pública Hospital de Clínicas Gaspar Vianna. Ethics approval and consent to participate This study was approved by the Ethics Committee of the Fundação Pública Hospital de Clínicas Gaspar Vianna under the protocol number CAAE: 66557717.0.0000.0016. All the procedures in this study were in accordance with the 1975 Helsinki Declaration, updated in 2013. Informed consent was obtained from all participants included in the study.