Preoperative transfusion in sickle cell disease: a survey of practice in England

OBJECTIVES: To gather data on current preoperative transfusion practice and postoperative complications in sickle cell disease (SCD) as a prelude to a randomised trial. METHODS: A prospective one year survey of 114 SCD patients undergoing elective surgery in 31 English hospitals was undertaken. RESULTS: 43%, 39% and 23% of patients respectively [corrected] received no transfusion, top-up and exchange transfusion preoperatively. Overall postoperative complication rates were 18%, 26% and 17%, with SCD related complications of 12%, 8% and 0% respectively. 85% of patients with [corrected]HbSC/HbSss(+)thalassaemia and 71% of obstetric and gynaecology patients were not transfused preoperatively, whereas 59% patients undergoing ENT procedures and 83% of hip replacements had top-up and exchange transfusions respectively. Multivariable logistic regression analysis revealed that having moderate/high risk procedures was a predictor of postoperative complications (OR 4.9 (95% CL: 1.3 to 18), P = 0.017) [corrected] while preoperative transfusion was not (OR 1.7, (95% CL: [corrected] 0.5 to 6), P = 0.41). CONCLUSION: The lack of clear benefit of transfusion confirms the need for a randomised controlled trial of transfusion vs. no transfusion in patients with HbSS and HbSss(0)thalassaemia.