Low-Titer Group O Whole-Blood Resuscitation in the Prehospital Setting in Israel: Review of the First 2.5 Years’ Experience

Author:

Levin Dan,Zur Maoz,Shinar Eilat,Moshe Tzadok,Tsur Avishai M.ORCID,Nadler Roy,Yazer Mark H.,Epstein DannyORCID,Avital Guy,Gelikas Shaul,Glassberg Elon,Benov Avi,Chen Jacob

Abstract

<b><i>Introduction:</i></b> The Israeli Defense Forces Medical Corps (IDF-MC) implemented the use of low-titer group O whole blood (LTOWB) as the first-choice resuscitation fluid in the IDF airborne Combat Search and Rescue Unit (IDF-CSAR) for aerial evacuation of both military and civilian casualties in June 2018 for injured patients with hemorrhagic shock and at least one of the following: systolic blood pressure &#x3c;90 mm Hg, heart rate &#x3e;130 beats/min, deterioration of consciousness without head injury or hemoglobin concentration ≤7 g/dL. <b><i>Method:</i></b> All casualties treated with LTOWB by IDF-CSAR providers from June 2018 to January 2021 were included. Demographic and prehospital treatment data were collected in order to check compliance and adherence to the IDF-MC guidelines. This is a follow-up retrospective report. <b><i>Results:</i></b> Overall, 1,608 LTOWB units were supplied to the IDF-CSAR during the study period. Of these, 33 were transfused to 27 casualties; 17 (69%) with blunt injury, 8 (29.6%) with penetrating injuries, and 1 (3.7%) with gastrointestinal bleeding without trauma. The leading cause of injury was motor vehicle accidents. A total of 23 casualties received 1 unit of LTOWB, 3 received 2 units and 1 patient received 4 units. Two casualties were children. The median heart rate was 120 beats/min, 8 (29.6%) casualties had heart rates &#x3e;130 beats/min. Median systolic blood pressure was 95 mm Hg, 7 (26%) casualties had blood pressure &#x3c;90 mm Hg. The median Glasgow Coma Score was 14. No adverse reactions were documented following the administration of LTOWB. 77.8% of patients received LTOWB in adherence to the guidelines. <b><i>Conclusion:</i></b> Appropriate administration of LTOWB has improved over time in IDF-CSAR. Using LTOWB is feasible and simpler than administering packed red blood cells and plasma concurrently. Further efforts are needed to introduce LTOWB in other prehospital and in-hospital scenarios, with an increase in the maximum antibody titer threshold, to meet the expected increase in demand.

Publisher

S. Karger AG

Subject

Hematology,Immunology and Allergy

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