Fatalities caused by TRALI

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Abstract

This article includes a retrospective review of fatalities caused by transfusion-related acute lung injury (TRALI) over a 5-year period (from 1997 to 2002) that were reported to the Center for Biologics Evaluation and Research involving 58 recipient deaths and the corresponding 63 blood component donors. Descriptive statistics are presented. Recipient characteristics include age, sex, and admitting diagnosis. Cardiovascular disease, pulmonary disorders, and cancer were the most frequent diagnoses of transfusion recipients. Reported deaths did not appear to be associated with age, sex, reason for transfusion, or transfusion component. Implicated blood component(s) and clinical symptoms at the time of reaction were recorded. Fresh frozen plasma was implicated in one half of the cases, whereas red blood cells played a role in approximately one third. The clinical characteristics described most often in TRALI reports included shortness of breath, frothy sputum, pulmonary infiltrates, and hypoxia. Donor variables included age, sex, parity, and laboratory tests for antibodies to HLA and/or antigranulocyte antibodies. Laboratory tests showed HLA antibodies and/or antigranulocyte antibodies were positive in the majority of donors tested. More data are needed to better describe the role of antibodies in these reactions. Greater awareness is crucial for the practitioner to be alert for signs and symptoms of TRALI and to be aware of the necessary steps in treatment.

Section snippets

Methods

When a complication from blood transfusion is confirmed to be fatal, the blood establishment is required to notify the CBER/FDA within 24 hours.12 The CBER gathers specific information regarding the recipient, circumstances of the hospitalization, need for transfusion, specifics about the blood components transfused, and the cause of death, if known. Donor information is also gathered. The reporter is asked to submit a written report within 7 days of the fatality as well as copies of the

Recipients

The most commonly reported clinical signs and symptoms of TRALI were shortness of breath, frothy sputum, pulmonary infiltrates, hypotension, hypoxia, tachycardia, tachypnea, respiratory arrest, and fever. Recipient ages ranged from 3 to 90 years with a median age of 61; cases were evenly divided between males and females (Table 1). Various admitting diagnoses were reported (Table 2).

Implicated blood components

FFP was the most frequently implicated blood component followed by red blood cells, platelets, and

Discussion

The findings in this study are consistent with TRALI case reports in the literature. TRALI fatalities occurred equally in males and females and throughout all age groups. Blood components implicated in these fatalities all contained plasma. FFP was implicated twice as often as any other component. This is consistent with the premise that donor antibodies are transfused in the plasma fraction of blood products. Although FFP is transfused less often than red blood cells and/or platelets, half of

Conclusions

The prevalence and morbidity of nonfatal TRALI reactions is not known. Blood banks, transfusion services, and blood centers are required to investigate and document adverse transfusion reactions, but unless the transfusion results in a fatality, blood establishments are not currently required to report adverse reactions to the CBER. In some cases, blood bank directors, physicians, or quality-assurance specialists have voluntarily reported nonfatal TRALI reactions, but, in general, this

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