IJCS | Volume 32, Nº1, January/ February 2019

DOI: 10.5935/2359-4802.20180083 28 ORIGINAL ARTICLE International Journal of Cardiovascular Sciences. 2019;32(1)28-34 Mailing Address: João Luis Barbosa Av. Embaixador Abelardo Bueno, 3250/BL 2/603. Postal Code: 22775-040, Barra da Tijuca, Rio de Janeiro - Brazil. E-mail: joaoluis@cardiol.br Impact of Complications of Myocardial Revascularization Surgery on Expenses During Hospital Stay João Luís Barbosa, 1,2, 4 Clarissa Antunes Thiers, 1 Anderson Ferreira Rolim da Silva, 2 Marcos Maia Vianna, 2 Paulo Otávio de Paula Ravaglia Gedeon, 2 Lauro Martins Neto, 2 Marina Brunner Uchôa Dantas Moreira, 2 Luiz Felipe Faria, 2,3 Bernardo Rangel Tura 1 Instituto Nacional de Cardiologia (INC), 1 RJ - Brazil Universidade Estácio de Sá, 2 RJ - Brazil Universidade Fluminense Federal (UFF), 3 Niterói, RJ - Brazil Universidade Federal do Rio de Janeiro (UFRJ), 4 RJ - Brazil Manuscript received on August 12, 2017, revised manuscript on May 04, 2018, accepted on June 06, 2018. Abstract Background: Coronary artery bypass grafting (CABG) is an important treatment option for obstructive coronary artery disease, but it represents a high expense for paying sources. The complications of CABG impose an additional expense to the procedure that is not yet clearly established. Objective: To determine the economic impact of postoperative complications of CABG during hospitalization in a hospital of the unified health system (SUS). Methods: This is an observational study involving 240 patients undergoing isolated CABG in a reference hospital in cardiology in 2013. Patients aged over 30 years with proven coronary artery disease and indication to perform CRVM were included. Patients who performed CRVM associated with other procedures were excluded. Results: The average cost of hospitalization was R$ 22,647.24 (SD = R$ 28,105.66). In 97 patients who presented some complication the average cost was R$ 35,400.28 (SD = R$ 40,509.47), and in the 143 patients without complications the average cost was R$ 13,996.57 (SD = R$ 5,800.61) (p < 0.001). Expenditures ranged from R$ 17,344.37 in patients with one complication up to R$ 104,596.52 in patients with five complications (p < 0.001). Conclusions: The occurrence of complications during hospitalization for CABG significantly increases the costs of the procedure, but the magnitude of this increase depends on the type of complication developed, and higher expenses related to cardiovascular complications, infections and bleeding. With this information, managers can improve the allocation of resources to health. (Int J Cardiovasc Sci. 2019;32(1)28-34) Keywords: Myocardial Revascularization/economy; Myocardial Revascularization/complications; Hospital Costs/trends; Hospitalization; Cardiovascular Diseases/economy. Introduction Cardiovascular diseases are the main cause of mortality worldwide 1 , and ischemic heart disease accounts for about 7,500,000 deaths per year. 1 In Brazil, ischemic heart disease causes 107,916 deaths per year. 2 Hospital stays and diagnostic and therapeutic procedures related with coronary artery disease (CAD) have ameaningful economic impact on paying sources, as wells as treatment-related complications. Complications of surgical myocardial revascularization (CABG) impose additional expenses on the procedure; however, different types of complications determine a varying increase in hospital expenses with CABG. This study aims at determining the economic impact of CABGpostoperative complications during stay in a hospital of the Brazilian Unified Health System (SUS).