title: Heart transplantation with ABO-identical versus ABO-compatible cardiac grafts: influence on long-term survival.
abstract: OBJECTIVE
  To compare identical versus compatible, ABO blood group matching effects on rejection and long-term survival after heart transplantation (HT).
  
  
  METHODS
  Data were collected from 196 patients who underwent HT at Lund University Hospital between 1988 and 2008. Cox proportion hazard regression analysis was used to identify factors associated with reduced long-term survival.
  
  
  RESULTS
  One hundred and sixty six patients (85%) had an identical ABO blood group match and 30 patients (15%) had a compatible, ABO blood group match. Four non-pharmacological variables reducing overall survival were identified: recipient blood group AB, age >55 years, ischemic time, and year of transplantation. Two pharmacological variables improved overall survival: glucocorticoids and cyclosporine. There was no significant difference in long-term survival between patients with identical blood groups compared to compatible ABO blood group matching. However, there was a trend towards graft failure as cause of death being more common in the compatible ABO group match compared identical blood group match (13% versus 5%, p=0.118).
  
  
  CONCLUSIONS
  Six factors associated with overall survival were identified. One of these was related to blood group AB. No significant difference in survival following identical, versus compatible, ABO matching was demonstrated.
authors.affiliation: Department of Cardiothoracic Surgery, Lund University and Lund University Hospital, Lund, Sweden.
authors.forename: Johan
authors.initials: J
authors.lastname: Sjögren
authors.forename: Fredrik
authors.initials: F
authors.lastname: Ljungdahl-Waller
authors.forename: Erik
authors.initials: E
authors.lastname: Senneby
authors.forename: Björn
authors.initials: B
authors.lastname: Ekmehag
authors.forename: Bansi
authors.initials: B
authors.lastname: Koul
authors.forename: Johan
authors.initials: J
authors.lastname: Nilsson
mesh_terms: D000017:ABO Blood-Group System; D000328:Adult; D016572:Cyclosporine / Q000627:therapeutic use*; D005260:Female; D005938:Glucocorticoids / Q000627:therapeutic use*; D006085:Graft Survival; D006333:Heart Failure; D016027:Heart Transplantation / Q000379:methods / Q000401:mortality* / Q000706:statistics & numerical data; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D011446:Prospective Studies; D018570:Risk Assessment; D013548:Sweden
chemical_list: D000017:ABO Blood-Group System; D005938:Glucocorticoids; D016572:Cyclosporine