Background: Group O red blood cell (RBC) units are used for emergency transfusions and are often uncrossmatched when transfused. We sought to determine the risk of alloimmunization and identify acute adverse outcomes of this practice.
Study Design And Methods: The transfusion medicine database was searched for emergency-release transfusion (ERT) episodes from January 2006 through December 2010. The data collected included age and sex of the recipient, blood bank history, survival after the ERT episode, antibody screen results, antibody identifications, and compatibility of released units.
Results: A total of 1444 ERT episodes took place involving 1407 patients. A total of 4144 RBC units were released. Of the 129 positive antibody screens, 34 had no antibody on further work-up, 14 had autoantibodies, 48 had a single antibody specificity, and 25 had multiple antibody specificities. Seven patients developed an antibody that could be attributed to the ERT episode, and 15 patients developed an antibody after ERT and additional RBC transfusions. There were 32 reported suspected transfusion reactions. No acute hemolytic transfusion reactions were reported. Seven patients were given a total of 10 incompatible RBC units. Of these patients, one developed a delayed serologic transfusion reaction. The rate of alloimmunization attributable to ERT was 3%. Overall, the rate of incompatible transfusion was less than 0.3% and the rate of a delayed hemolytic transfusion reaction was approximately 0.02%.
Conclusion: There is minimal risk associated with the release of emergency uncrossmatched blood in the setting of an acutely bleeding patient. [Correction statement added after online publication 15-Oct-2012: the number of patients with autoantibodies, single antibody specificity and multiple antibody specificity has been update.].
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1537-2995.2012.03922.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Bronchiolitis Severity Affects Blood Count and Inflammatory Marker Levels: A Real-Life Experience.
Viruses
January 2025
Pediatric Unit, Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", University of Messina, Via Consolare Valeria 1, 98124 Messina, Italy.
Background: Bronchiolitis is the most common cause of lower respiratory tract infection (LRTI) in the first year of life. We analyzed the association between complete blood count (CBC), c-reactive protein (CRP), and novel inflammatory indexes (NLR, PLR, MLR, ELR, LMR, NPR, LPR, LNR, PNR, SII, SIRI) in predicting bronchiolitis severity at hospital admission.
Methods: We retrospectively collected data from 95 infants hospitalized for bronchiolitis in a third-level hospital during three epidemic seasons.
Fetal Hemoglobin as a Predictive Biomarker for Retinopathy of Prematurity: A Prospective Multicenter Cohort Study in Portugal.
Biomedicines
January 2025
Ecogenetics and Human Health Unit, Environmental Health Institute (ISAMB), Associate Laboratory TERRA, Faculty of Medicine, University of Lisbon, Av. Professor Egas Moniz, 1649-028 Lisbon, Portugal.
Retinopathy of prematurity (ROP) is a leading cause of vision impairment in preterm infants, with its pathogenesis linked to oxygen exposure. Red blood cell (RBC) transfusions, commonly performed in neonatal intensive care units (NICUs), reduce fetal hemoglobin (HbF) fraction, altering oxygen dynamics and potentially contributing to ROP. We aimed to investigate the relationship between RBC transfusions, HbF percentage, and ROP, evaluating HbF as a potential predictive biomarker.
View Article and Find Full Text PDFRed blood cell utilization in patients with sickle cell disease: A Canadian single-center experience.
Transfusion
January 2025
Ottawa Hospital Research Institute, Ottawa Hospital Center for Transfusion, Ottawa, Ontario, Canada.
Background: Red blood cell (RBC) utilization in patients with sickle cell disease (SCD) in Canada is poorly defined. This study describes RBC utilization in an SCD cohort at a single Canadian center.
Study Design And Methods: All adults with SCD who received care at the Ottawa Hospital between January 2006 and May 2019 were included, and followed until December 2021.
Tranexamic acid: single topical application for femoral neck fractures treated with arthroplasty results in lowest blood loss.
Eur J Trauma Emerg Surg
January 2025
Department of Trauma, Orthopedic, Plastic and Hand Surgery, University Hospital of Augsburg, Stenglinstrasse 2, 86156, Augsburg, Germany.
Purpose: Tranexamic acid is widely accepted for hip fractures but there is no agreement about dose or application method and the use is still off label for hip fractures. The aim of our study was to find the best application method of tranexamic acid in patients with femoral neck fractures comparing total blood loss, hemoglobin and transfusion rate.
Methods: A retrospective single centre cohort study (level I trauma centre) with 2008 patients treated operatively for a proximal femur fracture between January 2016 and January 2022 was performed.
Red blood cell urate levels are linked to hemolysis in vitro and post-transfusion as a function of donor sex, population and genetic polymorphisms in SLC2A9 and ABCG2.
Transfusion
January 2025
Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
Background: Storage of packed red blood cells (RBCs) for transfusion leads to biochemical and morphological changes, increasing hemolysis risk. Urate levels in blood bags at donation contribute to the molecular heterogeneity and hemolytic propensity of stored RBCs. However, studies to date have been underpowered to investigate at scale the contribution of donor demographics and genetics to the heterogeneity in urate levels across donations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!