Effects of high-yield thrombocytapheresis on the quality of platelet products

Julmy, Friedgard; Ammann, Roland A; Mansouri Taleghani, Behrouz; Fontana, Stefano; Hirt, Andreas; Leibundgut, Kurt (2008). Effects of high-yield thrombocytapheresis on the quality of platelet products. Transfusion, 48(3), pp. 442-50. Malden, Mass.: Wiley-Blackwell 10.1111/j.1537-2995.2007.01548.x

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BACKGROUND: The steadily increasing demands for single-donor apheresis platelet (PLT) concentrates (APCs) are a challenge to the PLT supply system. Therefore, efforts to improve plateletpheresis yield, allowing apheresis products to be split into 2 or more units, are valuable strategies. No data to demonstrate in vivo transfusion efficacy of these high-yield split-APCs are currently available, however. STUDY DESIGN AND METHODS: The transfusion efficacy of APCs produced by two apheresis methods involving different harvest and storing procedures and varying PLT yields was investigated. Efficacy measures were the 1-hour percent PLT recovery (PPR(1h)) and the 1-hour corrected count increment (CCI(1h)). In total, 400 APCs, produced with either an Amicus device (Baxter) and stored in PLT additive solution (T-Sol; Amicus method [AM], n = 107) or a Trima device (Gambro) and stored in plasma (Trima method [TM], n = 293), were transfused to 55 children (31 girls; median age, 9.5 years; range, 0.2-18.5 years) with thrombocytopenia due to chemotherapy or aplastic anemia (median, 4 APCs per child; range, 1-68). RESULTS: Transfusion efficacy was significantly lower for AM-APCs than for TM-APCs (median PPR(1h), 17 and 33%; median CCI(1h), 7.9 and 15.6, respectively; p < 0.001). Reduced transfusion efficacy correlated in a yield-dependent manner with high apheresis PLT yields (>/=6 x 10(11)) for AM-APCs (p < 0.001). CONCLUSION: Although in vitro validation of AM- and TM-APCs has been performed, only by evaluating transfusion efficacy in vivo did the AM turn out to be not suitable for high-yield thrombocytapheresis. This study recommends the implementation of in vivo transfusion efficacy studies for high-yield APC apheresis donations.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Paediatric Medicine 04 Faculty of Medicine > Department of Haematology, Oncology, Infectious Diseases, Laboratory Medicine and Hospital Pharmacy (DOLS) > Clinic of Haematology and Central Haematological Laboratory
UniBE Contributor:	Ammann, Roland, Mansouri Taleghani, Behrouz, Hirt, Andreas, Leibundgut, Kurt
ISSN:	0041-1132
ISBN:	18067508
Publisher:	Wiley-Blackwell
Language:	English
Submitter:	Anette van Dorland
Date Deposited:	04 Oct 2013 14:54
Last Modified:	05 Dec 2022 14:16
Publisher DOI:	10.1111/j.1537-2995.2007.01548.x
PubMed ID:	18067508
Web of Science ID:	000253484900007
URI:	https://boris.unibe.ch/id/eprint/22902 (FactScience: 37623)