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Blood transfusion in cardiac surgery is a risk factor for increased hospital length of stay in adult patients

par Galas, Filomena Regina Barbosa Gomes;Almeida, Juliano J.P.;Fukushima, Julia J.T.;Osawa, Eduardo E.A.;Nakamura, Rosana R.E.;Silva, Carolina C.M.P.D.C.;de Almeida, Elisângela Pinto Marinho;Auler, Jose Otavio Costa;Vincent, Jean Louis ;Hajjar, Ludhmila Abrahão
Référence Journal of Cardiothoracic Surgery, 8, 1, 54
Publication Publié, 2013-03

Article révisé par les pairs

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Résumé :

Background: Allogeneic red blood cell (RBC) transfusion has been proposed as a negative indicator of quality in cardiac surgery. Hospital length of stay (LOS) may be a surrogate of poor outcome in transfused patients.Methods: Data from 502 patients included in Transfusion Requirements After Cardiac Surgery (TRACS) study were analyzed to assess the relationship between RBC transfusion and hospital LOS in patients undergoing cardiac surgery and enrolled in the TRACS study.Results: According to the status of RBC transfusion, patients were categorized into the following three groups: 1) 199 patients (40%) who did not receive RBC, 2) 241 patients (48%) who received 3 RBC units or fewer (low transfusion requirement group), and 3) 62 patients (12%) who received more than 3 RBC units (high transfusion requirement group). In a multivariable Cox proportional hazards model, the following factors were predictive of a prolonged hospital length of stay: age higher than 65 years, EuroSCORE, valvular surgery, combined procedure, LVEF lower than 40% and RBC transfusion of > 3 units.Conclusion: RBC transfusion is an independent risk factor for increased LOS in patients undergoing cardiac surgery. This finding highlights the adequacy of a restrictive transfusion therapy in patients undergoing cardiac surgery.Trial registration: Clinicaltrials.gov identifier: http://NCT01021631. © 2013 Galas et al.; licensee BioMed Central Ltd.