title: Blood use in neurosurgical cases at the university hospital of the west indies.
abstract: OBJECTIVE
  Many neurosurgical cases are done without the need for blood transfusion, yet blood is unnecessarily cross-matched, resulting in wasted resources. This study was undertaken to document and compare the number of units of blood components requested, cross-matched and transfused in neurosurgical cases at the University Hospital of the West Indies (UHWI).
  
  
  METHODS
  A prospective, observational study was undertaken over one year. Data collected for each patient included demographic information, relevant perioperative data, and blood banking data including blood components requested, cross-matched and transfused. Data were analysed using SPSS version 16.
  
  
  RESULTS
  Data were analysed on 152 patients, 71 females (46.7%) and 81 males (53.3%). The mean age was 48.7 ± 19.6 years and 100 of the procedures were done electively (65.8%). Blood components were ordered in 114 (75%) cases, red cells more commonly in 113 (74.3%) patients, and plasma in 19 (12.5%) patients. Overall, 20 patients (13.2%) were transfused. Most patients (90.9%) needed one to two units of blood. Of the 236 units of blood components that were cross-matched or prepared, only 62 were transfused. The cross-match/preparation to transfusion ratio (CTR/PTR) was 6.00 for red cells and 1.31 for plasma. Preoperative haemoglobin ≤ 10.0 g/dL (p = 0.001), estimated blood loss of ≥ 1 litre (p < 0.001), higher American Society of Anesthesiologists (ASA) physical status score (p < 0.03) and a resident as lead surgeon (p < 0.05), were significant predictors of blood transfusion.
  
  
  CONCLUSIONS
  The transfusion rate was low with a high cross-match to transfusion ratio, suggesting that less cross-matching is needed. A new approach to blood ordering for neurosurgical cases is recommended.
authors.affiliation: Department of Surgery, Radiology, Anaesthesia and Intensive Care, The University of the West Indies, Kingston 7, Jamaica. annette.crawfordsykes@uwimona.edu.jm.
authors.forename: A
authors.initials: A
authors.lastname: Crawford-Sykes
authors.affiliation: Department of Surgery, Radiology, Anaesthesia and Intensive Care, The University of the West Indies, Kingston 7, Jamaica.
authors.forename: K
authors.initials: K
authors.lastname: Ehikhametalor
authors.affiliation: Department of Surgery, Radiology, Anaesthesia and Intensive Care, The University of the West Indies, Kingston 7, Jamaica.
authors.forename: I
authors.initials: I
authors.lastname: Tennant
authors.affiliation: Department of Surgery, Radiology, Anaesthesia and Intensive Care, The University of the West Indies, Kingston 7, Jamaica.
authors.forename: M
authors.initials: M
authors.lastname: Scarlett
authors.affiliation: Department of Surgery, Radiology, Anaesthesia and Intensive Care, The University of the West Indies, Kingston 7, Jamaica.
authors.forename: R
authors.initials: R
authors.lastname: Augier
authors.affiliation: Department of Surgery, Radiology, Anaesthesia and Intensive Care, The University of the West Indies, Kingston 7, Jamaica.
authors.forename: L
authors.initials: L
authors.lastname: Williamson
authors.affiliation: Department of Pathology, The University of the West Indies, Kingston 7, Jamaica.
authors.forename: G
authors.initials: G
authors.lastname: Wharfe
authors.affiliation: Department of Surgery, Radiology, Anaesthesia and Intensive Care, The University of the West Indies, Kingston 7, Jamaica.
authors.forename: H
authors.initials: H
authors.lastname: Harding-Goldson