Predictors of red blood cell transfusion after cardiac surgery: a prospective cohort study

  • Camila Takao Lopes Universidade de São Paulo; Hospital Universitário
  • Evelise Helena Fadini Reis Brunori Instituto Dante Pazzanese de Cardiologia
  • Agueda Maria Ruiz Zimmer Cavalcante Universidade Federal de São Paulo; Escola Paulista de Enfermagem
  • Sue Ann Moorhead University of Iowa; College of Nursing
  • Juliana de Lima Lopes Universidade Federal de São Paulo; Escola Paulista de Enfermagem
  • Alba Lucia Bottura Leite de Barros Universidade Federal de São Paulo; Escola Paulista de Enfermagem

Abstract

OBJECTIVE To identify predictors of red blood cell transfusion (RBCT) after cardiac surgery. METHOD A prospective cohort study performed with 323 adults after cardiac surgery, from April to December of 2013. A data collection instrument was constructed by the researchers containing factors associated with excessive bleeding after cardiac surgery, as found in the literature, for investigation in the immediate postoperative period. The relationship between risk factors and the outcome was assessed by univariate analysis and logistic regression. RESULTS The factors associated with RBCT in the immediate postoperative period included lower height and weight, decreased platelet count, lower hemoglobin level, higher prevalence of platelet count <150x10 3/mm3, lower volume of protamine, longer duration of anesthesia, higher prevalence of intraoperative RBCT, lower body temperature, higher heart rate and higher positive end-expiratory pressure. The independent predictor was weight <66.5Kg. CONCLUSION Factors associated with RBCT in the immediate postoperative period of cardiac surgery were found. The independent predictor was weight.

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Published
2015-12-01
How to Cite
Lopes, C., Brunori, E., Cavalcante, A., Moorhead, S., Lopes, J., & Barros, A. (2015). Predictors of red blood cell transfusion after cardiac surgery: a prospective cohort study . Revista Da Escola De Enfermagem Da USP, 49(6), 914-922. https://doi.org/10.1590/S0080-623420150000600006
Section
Original Articles