Utility and Cost of Low-Vacuum Reinfusion Drains in Patients Undergoing Surgery for Subcapital Hip Fracture Repair. A Before and after Cohort Study.

Background Postoperative blood loss may be a risk factor for allogeneic blood transfusion (ABT) in patients undergoing subcapital hip fracture (SHF) repair. We investigated the utility and costs of using a low-vacuum reinfusion drain (Bellovac ABT) within a blood management protocol for reducing ABT requirements in consecutive SHF.Methods The blood management protocol consisted of the application of a restrictive transfusion trigger (Hb<8g/dl), the peri-operative administration of IV iron sucrose (3x200mg/48h)recombinant erythropoietin (1x40000IU sc) and the use of Bellovac ABT (Group 2, n=117). An immediate previous SHF series managed without Bellovac ABT served as control (Group 1, n=138).Results Overall, 72 out of 255 (28%) received at least one ABT unit (21 +/- 10 U/transfused patient) without differences between groups. However, in the subgroup of patients with admission Hb<13g/dl, the use of Bellovac ABT reduced postoperative ABT rates (16% vs. 46%, for groups 2 and 1, respectively; P=0001), although only 3 were reinfused, and was cost-saving. The use of Bellovac ABT also resulted in fewer wound bleeding complications, but there were no differences in Hb at postoperative days 7 and 30 between groups.Conclusions In SHF patients with admission Hb<13g/dl and managed with peri-operative IV iron +/- recombinant erythropoietin plus restrictive transfusion indication, the use of Bellovac ABT was associated with reduced ABT requirements, without increasing postoperative complications, and cost-savings.