Analysis of scrapping reasons for apheresis platele consumables used in Chengdu Blood Center

Objective To explore the scrapping reasons for the apheresis platele consumables of 3 different types blood cell separators used in Chengdu Blood Center. Methods From January 2015 to December 2017, a total of 63 782 sets of apheresis platelets consumables used in Chengdu Blood Center and Tianfu Blood Donation House were selected as subjects. Among them, the apheresis platelets consumables of MCS+ , Amicus, Trima Accel blood cell separators were 28 351, 15 482 and 19 949 sets, respectively. Retrospective investigation method was adopted to inquire the material scrapping situation in the resource management of Chengdu Blood Center and Tianfu Blood Donation House, through the Qiao Blood Station Management System. And the scrapping amount and reasons of apheresis platele consumables were counted, and were checked with the scrapping records from Consumables Scrap Statistics in Apheresis Room. Reasons for scrapped of apheresis platele consumables include consumable factors (pipe wrinkles, breakage, leakage, etc.) and collection factors (venipuncture failure, machine fault, chylemia blood, red blood cell overflow, blood donation response, etc.). After the data were verified correctly, the scrapping rates of apheresis platelets consumables were calculated. The scrapping rates of different blood cell separators and different scrapping reasons were compared by chi-square test, respectively. Results ① Among the 63 782 sets of apheresis platelets consumables, a total of 900 sets were scrapped, with a scrapping rate of 1.41% (900/63 782). The scrapping rate of MCS+ blood cell separators was 1.83% (518/28 351), which was higher than that of 1.41% (219/15 482) of Amicus and 0.82% (163/19 949) of Trima Accel blood cell separators, and the differences were statistically significant (χ2=239.10, P<0.001; χ2=162.15, P<0.001). ② Among the 900 sets of scrapping apheresis platelets consumables of this study, the scrapping rate due to collection factors was 1.16% (738/63 782), which was higher than that of 0.25% (162/63 782) due to consumables factors, and the difference was statistically significant (χ2=304.28, P<0.001). Among the 738 sets of scrapping apheresis platelets consumables due to collection factors, the scrapping rate of MCS+ blood cell separators was 1.61% (456/28 351), which was higher than that of 0.96% (148/15 482) of Amicus and 0.67% (134/19 949) of Trima Accel blood cell separators, and the differences were statistically significant (χ2=220.79, P<0.001; χ2=164.42, P<0.001). Among the 162 sets of scrapping apheresis platelets consumables due to consumables factors, the scrapping rate of Amicus blood cell separators was 0.46% (71/15 482), which was higher than of 0.22% (62/28 351) of MCS+ and 0.15% (29/19 949) of Trima Accel blood cell separators, and the differences were statistically significant (χ2=19.05, P<0.001; χ2=30.38, P<0.001). ③ Among the 738 sets of scrapping apheresis platelets consumables due to collection factors, venipuncture failure (0.38%, 241/63 782), machine fault (0.23%, 144/63 782) and chyle blood (0.21%, 133/63 782) were main scrapping reasons. Conclusions There are differences in the scrapping rate and reasons of apheresis platele consumables scrapping of 3 types of blood cell separators used in Chengdu Blood Center. The reasons for scrapping are mainly the collection factors, including venipuncture failure, machine failure and chyle blood. In the work of apheresis platelets collection, the appropriate blood cell separators and matching apheresis platelets consumables, should be selected according to the physical conditions of the blood donors, as well as the characteristics of the blood cell separators. Key words: Blood platelets; Blood safety; Apheresis platelets; Blood cell separators; Blood scrap