Volume 51, Issue 10 pp. 2111-2117

Alloexposed blood donors and transfusion-related acute lung injury: a case-referent study

Rutger A. Middelburg

Rutger A. Middelburg

From the Department of Clinical Epidemiology, Leiden University Medical Center, and Sanquin-LUMC Jon J. van Rood Center for Clinical Transfusion Research, Leiden; the Department of Research and Training, Sanquin Blood Bank, Dordrecht and Nijmegen; TRIP (Transfusion Reactions in Patients) Dutch National Hemovigilance Office, The Hague; Sanquin Diagnostic Services, Amsterdam; and Internal Medicine-Hematology, Maastricht University Medical Center, Maastricht, The Netherlands.

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Daniëlle van Stein

Daniëlle van Stein

From the Department of Clinical Epidemiology, Leiden University Medical Center, and Sanquin-LUMC Jon J. van Rood Center for Clinical Transfusion Research, Leiden; the Department of Research and Training, Sanquin Blood Bank, Dordrecht and Nijmegen; TRIP (Transfusion Reactions in Patients) Dutch National Hemovigilance Office, The Hague; Sanquin Diagnostic Services, Amsterdam; and Internal Medicine-Hematology, Maastricht University Medical Center, Maastricht, The Netherlands.

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Femke Atsma

Femke Atsma

From the Department of Clinical Epidemiology, Leiden University Medical Center, and Sanquin-LUMC Jon J. van Rood Center for Clinical Transfusion Research, Leiden; the Department of Research and Training, Sanquin Blood Bank, Dordrecht and Nijmegen; TRIP (Transfusion Reactions in Patients) Dutch National Hemovigilance Office, The Hague; Sanquin Diagnostic Services, Amsterdam; and Internal Medicine-Hematology, Maastricht University Medical Center, Maastricht, The Netherlands.

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Johanna C. Wiersum-Osselton

Johanna C. Wiersum-Osselton

From the Department of Clinical Epidemiology, Leiden University Medical Center, and Sanquin-LUMC Jon J. van Rood Center for Clinical Transfusion Research, Leiden; the Department of Research and Training, Sanquin Blood Bank, Dordrecht and Nijmegen; TRIP (Transfusion Reactions in Patients) Dutch National Hemovigilance Office, The Hague; Sanquin Diagnostic Services, Amsterdam; and Internal Medicine-Hematology, Maastricht University Medical Center, Maastricht, The Netherlands.

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Leendert Porcelijn

Leendert Porcelijn

From the Department of Clinical Epidemiology, Leiden University Medical Center, and Sanquin-LUMC Jon J. van Rood Center for Clinical Transfusion Research, Leiden; the Department of Research and Training, Sanquin Blood Bank, Dordrecht and Nijmegen; TRIP (Transfusion Reactions in Patients) Dutch National Hemovigilance Office, The Hague; Sanquin Diagnostic Services, Amsterdam; and Internal Medicine-Hematology, Maastricht University Medical Center, Maastricht, The Netherlands.

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Erik A.M. Beckers

Erik A.M. Beckers

From the Department of Clinical Epidemiology, Leiden University Medical Center, and Sanquin-LUMC Jon J. van Rood Center for Clinical Transfusion Research, Leiden; the Department of Research and Training, Sanquin Blood Bank, Dordrecht and Nijmegen; TRIP (Transfusion Reactions in Patients) Dutch National Hemovigilance Office, The Hague; Sanquin Diagnostic Services, Amsterdam; and Internal Medicine-Hematology, Maastricht University Medical Center, Maastricht, The Netherlands.

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Ernest Briët

Ernest Briët

From the Department of Clinical Epidemiology, Leiden University Medical Center, and Sanquin-LUMC Jon J. van Rood Center for Clinical Transfusion Research, Leiden; the Department of Research and Training, Sanquin Blood Bank, Dordrecht and Nijmegen; TRIP (Transfusion Reactions in Patients) Dutch National Hemovigilance Office, The Hague; Sanquin Diagnostic Services, Amsterdam; and Internal Medicine-Hematology, Maastricht University Medical Center, Maastricht, The Netherlands.

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Johanna G. van der Bom

Corresponding Author

Johanna G. van der Bom

From the Department of Clinical Epidemiology, Leiden University Medical Center, and Sanquin-LUMC Jon J. van Rood Center for Clinical Transfusion Research, Leiden; the Department of Research and Training, Sanquin Blood Bank, Dordrecht and Nijmegen; TRIP (Transfusion Reactions in Patients) Dutch National Hemovigilance Office, The Hague; Sanquin Diagnostic Services, Amsterdam; and Internal Medicine-Hematology, Maastricht University Medical Center, Maastricht, The Netherlands.

Johanna G. van der Bom, Leiden University Medical Center (LUMC), Clinical Epidemiology, Postzone C7-P, PO Box 9600, 2300 RC Leiden, The Netherlands; e-mail: [email protected]. Search for more papers by this author
First published: 24 March 2011
Citations: 7

Abstract

BACKGROUND: Donor white blood cell (WBC) antibodies are thought to increase the risk of transfusion-related acute lung injury (TRALI). WBC antibodies can be present in blood products from donors who have been alloexposed. Alloexposed donors are increasingly excluded from donating plasma, but can still donate plasma-poor products. We aimed to quantify the contribution of alloexposed donors to the occurrence of TRALI for different blood product types.

STUDY DESIGN AND METHODS: We performed a case-referent study including all reported TRALI patients and all Dutch blood donors. Data on alloexposure status of donors of all TRALI cases reported between January 2004 and October 2008, in the Netherlands, were compared to information on the total donor population.

RESULTS: Alloexposure status of all 223 involved donors was compared to the expected status. The overall percentage of TRALI cases that could have been prevented by the deferral of all alloexposed donors (i.e., population-attributable risk [PAR]) was 51% (95% confidence interval [CI], 14%-88%). In 19 recipients of exclusively plasma-poor products (mostly red blood cells [RBCs]), alloexposure of the donors was not associated with TRALI, while in 28 recipients of both plasma-poor and plasma-rich products (>200 mL plasma), the PAR was 94% (95% CI, 34%-100%).

CONCLUSIONS: Alloexposed donors conferred an increased risk of TRALI in recipients of plasma-rich products, but not in recipients of plasma-poor products. Although WBC antibodies are an important risk factor for TRALI, among RBC recipients another risk factor must be more important.

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