title: Reduction of allogeneic red blood cell usage during cardiac surgery by an integrated intra- and postoperative blood salvage strategy: results of a randomized comparison.
abstract: BACKGROUND
  The amount of allogeneic blood transfusion may relate to worse outcome in cardiac surgery. The reinfusion of red blood cells (RBCs) lost by patients, including those of chest drains, is a promising strategy to minimize allogeneic transfusions.
  
  
  METHODS
  To verify this hypotheis, 1047 cardiac surgery patients were randomly assigned to either traditional intraoperative blood salvage followed by chest drain insertion or intra- and postoperative strategy with the Haemonetics cardioPAT system. Allogeneic RBC transfusion rate (primary endpoint) and postoperative complications (secondary endpoint) were recorded at the time of discharge from the hospital and at first month follow-up visit, respectively.
  
  
  RESULTS
  The cardioPAT arm received 1.20 units of allogeneic RBCs per patient, whereas the control group required 2.11 units per patient, and this difference proved to be highly significant (p=0.02). We observed a comparable 45-day mortality rate but a lower rate of deep vein thrombosis (p=0.04) and atrial fibrillation (p=0.04) in the cardioPAT arm.
  
  
  CONCLUSIONS
  A significant reduction in patient exposure to allogeneic RBCs was observed in the cardioPAT system arm. Complications were slightly less frequent in the cardioPAT group. The use of the cardioPAT is a safe and effective strategy to reduce allogeneic RBC transfusions in cardiac surgery.
authors.affiliation: Cardiac Surgery Department, European Hospital, Rome, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Weltert
authors.forename: Saverio
authors.initials: S
authors.lastname: Nardella
authors.forename: Maria Beatrice
authors.initials: MB
authors.lastname: Rondinelli
authors.forename: Luca
authors.initials: L
authors.lastname: Pierelli
authors.forename: Ruggero
authors.initials: R
authors.lastname: De Paulis
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D006348:Cardiac Surgical Procedures / Q000191:economics; D003362:Cost-Benefit Analysis; D017707:Erythrocyte Transfusion / Q000706:statistics & numerical data*; D005260:Female; D005500:Follow-Up Studies; D006331:Heart Diseases / Q000191:economics / Q000601:surgery*; D006801:Humans; D007430:Intraoperative Care / Q000191:economics / Q000295:instrumentation / Q000379:methods*; D007558:Italy; D008297:Male; D008875:Middle Aged; D057725:Operative Blood Salvage / Q000191:economics / Q000295:instrumentation / Q000379:methods*; D011182:Postoperative Care / Q000191:economics / Q000295:instrumentation / Q000379:methods*; D011183:Postoperative Complications / Q000453:epidemiology / Q000517:prevention & control; D011446:Prospective Studies; D016896:Treatment Outcome