Nationwide Implementation of Pathogen Inactivation for All Platelet Concentrates in Switzerland.

Jutzi, Markus; Mansouri Taleghani, Behrouz; Rueesch, Morven; Amsler, Lorenz; Buser, Andreas (2018). Nationwide Implementation of Pathogen Inactivation for All Platelet Concentrates in Switzerland. Transfusion medicine and hemotherapy, 45(3), pp. 151-156. Karger 10.1159/000489900

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Introduction

Bacterial contamination of platelet concentrates (PCs) has been identified as the most prevalent transfusion-associated infectious risk. To prevent PC-related septic transfusion reactions, the Intercept® pathogen inactivation procedure was introduced for all PCs in Switzerland in 2011.

Methods

Based on numbers of transfused units and mandatorily reported adverse events with high imputability, we compare the risks associated with transfusion of conventional PCs (cPCs) and pathogen-inactivated PCs (PI-PCs).

Results

From 2005 to 2011, a total of 158,502 cPCs have been issued in Switzerland, and 16 transfusion-transmitted bacterial infections (including 3 fatalities) were reported. This corresponds to a morbidity and mortality rate of ca. 1:9,900 and 1:52,800, respectively. From 2011 to 2016, a total of 205,574 PI-PCs have been issued, and no transfusion-transmitted bacterial infection was reported. Despite continuously increasing transfusion reaction rates per 1,000 RBC and plasma issued between 2008 and 2016, we observed reductions of 66% for life-threatening and fatal reactions and of 26% for all high-imputability transfusion reactions related to PI-PCs as compared to cPCs. No increased rates of bleeding or clinical observations of ineffectiveness of PI-PCs have been reported. After implementation of PI-PCs, the annual increase in platelet usage per 1,000 inhabitants decelerated.

Discussion

Swiss hemovigilance data confirm a favorable safety profile of the nationwide introduced Intercept pathogen inactivation procedure and its reliable prevention of septic transfusion reactions and fatalities due to bacterially contaminated PCs.

Interest & Impact

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