Risk factors for low cardiac output syndrome after coronary artery bypass grafting surgery

• Autor(a) principal: Sá,Michel Pompeu Barros de Oliveira
• Data de Publicação: 2012
• Outros Autores: Nogueira,Joana Rosa Costa, Ferraz,Paulo Ernando, Figueiredo,Omar Jacobina, Cavalcante,Wagner Cid Palmeira, Cavalcante,Thiago Cid Palmeira, Silva,Hugo Thiago Torres da, Santos,Cecília Andrade, Lima,Renato Oliveira de Albuquerque, Vasconcelos,Frederico Pires, Lima,Ricardo de Carvalho
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Cardiovascular Surgery (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382012000200009
• topic: Risk factors; Cardiac output, low; Myocardial revascularization

OBJECTIVES: Low cardiac output syndrome (LCOS) is a serious complication after cardiac surgery and is associated with significant morbidity and mortality. The aim of this study is to identify risk factors for LCOS in patients undergoing coronary artery bypass grafting (CABG) in the Division of Cardiovascular Surgery of Pronto Socorro Cardiológico de Pernambuco - PROCAPE (Recife, PE, Brazil). METHODS: A historical prospective study comprising 605 consecutive patients operated between May 2007 and December 2010. We evaluated 12 preoperative and 7 intraoperative variables. We applied univariate and multivariate logistic regression analysis. RESULTS: The incidence of LCOS was 14.7% (n = 89), with a lethality rate of 52.8% (n = 47). In multivariate analysis by logistic regression, four variables remained as independent risk factors: age &gt; 60 years (OR 2.00, 95% CI 1.20 to 6.14, P = 0.009), on-pump CABG (OR 2.16, 95% CI 1.40 to 7.08, P = 0.006), emergency surgery (OR 4.71, 95% CI 1.34 to 26.55, P = 0.028), incomplete revascularization (OR 2.62, 95% CI 1.32 to 5.86, P = 0.003), and ejection fraction <50%. CONCLUSIONS: This study identified the following independent risk factors for LCOS after CABG: age&gt; 60 years of off-pump CABG, emergency surgery, incomplete CABG and ejection fraction <50%.