Blood Utilization Trends in Obstetrics and Gynecology: A Seven-Year Retrospective Study in a Teaching Hospital in Sikkim, India

Introduction: Unutilized cross-matched blood due to excess cross-match requisitions results in unnecessary wastage of inventory, time, labor, and financial resources. This retrospective cross-sectional study aims to assess the blood utilization practices in obstetrics/gynecology (OB/GYN) over a period of seven years with respect to “blood utilization indices” and standard recommendations. Material and methods: Cross-match requisitions from the OB/GYN Department over a period of seven years (2012-2018) were selected and included in the study using a suitable sampling technique. Patient details were retrieved from the Hospital Information System (HIS) database. The preoperative crossmatch requisitions and blood utilization data were recorded. “Blood utilization indices” and whole blood/component utilization patterns were analyzed. Results: A total of 894 units of blood were cross-matched for 523 patients included in the study. A total of 305 of these patients were transfused with 445 units. During the initial phase of the study (2012-2014), the average cross-match-to-transfusion ratio (CTR, 6.6), transfusion probability (12.3), transfusion index (0.23), and component utilization (4%) were in marked deviation from recommended “blood utilization indices.” This was in contrast with the later phase of the study (2015-2018) wherein the average CTR (1.5), transfusion probability (69.3), transfusion index (1.3), and component utilization (91.8%) were compliant with recommended “blood utilization indices.” Conclusion: A progressive improvement in blood utilization practices was observed in the OB/GYN Department during the study period. Awareness campaigns have contributed to the implementation of rational and judicious blood transfusion practices in our center.