title: A decision aid for autologous pre-donation in cardiac surgery--a randomized trial.
abstract: OBJECTIVE
  The objective of this randomized, controlled study was to determine the usefulness of a decision aid on pre-donation of autologous blood before elective open heart surgery.
  
  
  METHODS
  The decision aid (DA) group received a tape and booklet which described the options for peri-operative transfusion in detail. The no decision aid (NDA) group received information usually given to patients about autologous donation.
  
  
  RESULTS
  A total of 120 patients were randomized. The DA group rated themselves better prepared for decision making and showed significant improvements in knowledge (p = 0.001) and realistic risk perceptions (p = 0.001). In both groups there was an increase in the proportion of patients choosing allogeneic blood between baseline and follow-up (p = 0.001). Patients in the DA group were significantly more satisfied with the amount of information they received, how they were treated and with the decision they made, than patients in the NDA group.
  
  
  CONCLUSIONS
  The decision aid is useful in preparing patients for decision making.
  
  
  CONCLUSIONS
  The next stage is to explore strategies to make it available to all appropriate patients.
authors: Institute for Clinical Evaluative Sciences, G-106, 2075 Bayview Avenue, Toronto, Ont., Canada M4N 3M5. alaupacis@ices.on.ca
authors: A
authors: A
authors: Laupacis
authors: A M
authors: AM
authors: O'Connor
authors: E R
authors: ER
authors: Drake
authors: F D
authors: FD
authors: Rubens
authors: J A
authors: JA
authors: Robblee
authors: F C
authors: FC
authors: Grant
authors: P S
authors: PS
authors: Wells
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001294:Attitude to Health; D001804:Blood Transfusion, Autologous / Q000009:adverse effects / Q000523:psychology*; D006348:Cardiac Surgical Procedures / Q000009:adverse effects / Q000193:education / Q000523:psychology*; D002755:Choice Behavior; D003220:Conflict, Psychological; D003661:Decision Support Techniques; D004521:Educational Measurement; D005260:Female; D005500:Follow-Up Studies; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007258:Informed Consent; D008297:Male; D008875:Middle Aged; D009864:Ontario; D010353:Patient Education as Topic / Q000379:methods* / Q000592:standards; D011300:Preoperative Care / Q000523:psychology; D018570:Risk Assessment; D012380:Role