title: Pretransfusion Comparison of Dialyser-Based Hemoconcentrator With Cell Saver System for Perioperative Cell Salvage.
abstract: OBJECTIVE
  Cell Saver system is the method of choice for red blood cell salvage from the surgical field; however, cost is a limiting factor. We at our institute have devised a cost-effective version of dialyser-based autotransfusion system. We performed pretransfusion comparison of our autotransfusion system with conventional cell saver system.
  
  
  METHODS
  A prospective randomized observational study was performed in 104 consecutive patients with coronary artery disease undergoing by off-pump coronary artery bypass grafting. Patients were divided into two groups. In the dialyser group (53 patients), blood from surgical field was salvaged by our dialyser-based system. In the cell saver group (51 patients), blood was salvaged by cell saver. In both groups, 20-mL sample from the salvaged blood was analyzed for hemoglobin, platelets, protein, albumin, free hemoglobin, osmotic fragility, and peripheral blood smear examination.
  
  
  RESULTS
  Total hemoglobin salvaged was comparable in both groups (85% vs 76%). On peripheral smear, red blood cells were swollen, but morphology was preserved. Moreover, normal osmotic fragility suggested absence of any lethal damage to red blood cells in either group. Dialyser-based system was more efficient in salvaging platelets (42.9% vs 6%), proteins (79.2% vs 0%), and albumin (65% vs 0%). Total free hemoglobin was three times more in dialyser group but was well below recommended limits.
  
  
  CONCLUSIONS
  Dialyser-based system is economical, is equally efficacious in salvaging red blood cells, is more effective in salvaging platelets and proteins, and does not contain significant amount of free hemoglobin. Therefore, this salvaged blood can be safely transfused.
authors.affiliation: From the Departments of *Cardiovascular and Thoracic Surgery, †Pathology, ‡Perfusion, and §Medical Research, U. N. Mehta Institute of Cardiology and Research Center (Affiliated to B. J. Medical College), Civil Hospital Campus, Asarwa, Ahmedabad, India.
authors.forename: Pankaj
authors.initials: P
authors.lastname: Garg
authors.forename: Amber
authors.initials: A
authors.lastname: Malhotra
authors.forename: Manan
authors.initials: M
authors.lastname: Desai
authors.forename: Pranav
authors.initials: P
authors.lastname: Sharma
authors.forename: Arvind Kumar
authors.initials: AK
authors.lastname: Bishnoi
authors.forename: Payal
authors.initials: P
authors.lastname: Tripathi
authors.forename: Dayesh
authors.initials: D
authors.lastname: Rodricks
authors.forename: Himani
authors.initials: H
authors.lastname: Pandya
mesh_terms: D001792:Blood Platelets; D001798:Blood Proteins / Q000032:analysis; D001804:Blood Transfusion, Autologous / Q000295:instrumentation / Q000379:methods*; D001026:Coronary Artery Bypass / Q000379:methods; D004912:Erythrocytes; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D057725:Operative Blood Salvage / Q000295:instrumentation / Q000379:methods*; D019990:Perioperative Care / Q000379:methods; D006435:Renal Dialysis / Q000295:instrumentation / Q000379:methods*; D012709:Serum Albumin / Q000032:analysis
chemical_list: D001798:Blood Proteins; D006454:Hemoglobins; D012709:Serum Albumin