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SHOT Annual Report 2009 - Serious Hazards of Transfusion

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13. <strong>Transfusion</strong>-Related Acute Lung Injury (TRALI)<br />

Definition<br />

<strong>Transfusion</strong>-related acute lung injury (TRALI) is defined as acute dyspnoea with hypoxia and bilateral pulmonary<br />

infiltrates during or within 6 hours <strong>of</strong> transfusion, not due to circulatory overload or other likely causes.<br />

DATA SUMMARY<br />

Total number <strong>of</strong> cases 21 Implicated components Mortality/morbidity<br />

Highly likely/probable 9 Red cells 2 Deaths due to transfusion 0<br />

Possible/unlikely 12 FFP 2<br />

Deaths in which reaction was<br />

implicated<br />

Platelets 3 Major morbidity 18<br />

Red cells and cryo 1<br />

2<br />

Unknown 13<br />

Gender<br />

Age<br />

Emergency vs. routine and core<br />

hours vs. out <strong>of</strong> core hours<br />

Where transfusion took place<br />

Male<br />

Female<br />

Unknown<br />

9<br />

12<br />

0<br />

18 years+<br />

16 years+ to 18 years<br />

1 year+ to 16 years<br />

28 days+ to 1 year<br />

Birth to 28 days<br />

Unknown<br />

Total<br />

19<br />

2<br />

0<br />

0<br />

0<br />

0<br />

21<br />

Emergency<br />

Routine<br />

Not known<br />

In core hours<br />

Out <strong>of</strong> core hours<br />

Not known/applicable<br />

21<br />

21<br />

ED<br />

Theatre<br />

ITU/NNU/HDU/Recovery<br />

Wards<br />

Community<br />

Outpatient/day unit<br />

Not known 21<br />

In all, 32 questionnaires were received in <strong>2009</strong>: 7 were transferred to other categories – 5 to TACO, 1 to TAD and 1 to<br />

ATR – and 4 were withdrawn, leaving 21 reports in this section.<br />

Two <strong>of</strong> the 4 withdrawn cases were withdrawn by the hospital reporter. One occurred before transfusion and the other<br />

was found to have bronchopneumonia. The other 2 cases were withdrawn by the analyst because they did not meet<br />

the <strong>SHOT</strong> definition for TRALI:<br />

■■ 1 reaction occurred more than 6 hours after transfusion (12 to 24 hours) and there had been no change in<br />

respiratory status.<br />

■■ 1 patient with severe alcoholic liver disease developed worsening respiratory function before transfusion<br />

began. This patient had been treated with palliative care because <strong>of</strong> poor prognosis.<br />

Twenty-one cases were analysed and the assessed probability <strong>of</strong> TRALI is shown in Figure 15. Two patients died, 1 had<br />

probable TRALI after RBC (Case 1, page 113) and the other had possible TRALI after RBC and FFP (Case 3). All other<br />

patients recovered fully from the event. Seven <strong>of</strong> 21 analysed cases concerned late reporting <strong>of</strong> incidents which had<br />

occurred in 2008.<br />

13. <strong>Transfusion</strong>-Related Acute Lung Injury (TRALI) 107

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