BACKGROUND: Previous reports have shown that storage decrease the ability of PLTs to aggregate in the form of PLT concentrate (PC). Nevertheless, there are few reports that have studied the PLT function in blood samples obtained from recipients after PLT transfusion. In this study, this issue was addressed by examining the ability of PLTs to aggregate after being transfused into the blood stream. STUDY DESIGN AND METHODS: PC was transfused to the patients with extremely low PLT counts resulting from chemotherapy. The maximum extent of PLT aggregation and size of the aggregates were compared between PLT in stored PC before transfusion with the PLT-rich plasma (PRP) from the recipients after transfusion and with PRP from patients with moderate decrease in PLT counts after chemotherapy. RESULTS: The maximum extent of PLT aggregation was significantly higher in PRP collected from the patients after transfusion compared to the extent obtained before transfusion. There were no significant differences in the maximum extents of PLT aggregation between the PRP collected from the recipients after PC transfusion and, in the same patients, when PLT counts were moderately low. CONCLUSION: These results suggest that the observed decreased in PLT aggregation after storage can improve in the body after transfusion, and transfused PLTs have similar aggregation ability compared to the PLTs derived from the patient.
BACKGROUND: Previous reports have shown that storage decrease the ability of PLTs to aggregate in the form of PLT concentrate (PC). Nevertheless, there are few reports that have studied the PLT function in blood samples obtained from recipients after PLT transfusion. In this study, this issue was addressed by examining the ability of PLTs to aggregate after being transfused into the blood stream. STUDY DESIGN AND METHODS: PC was transfused to the patients with extremely low PLT counts resulting from chemotherapy. The maximum extent of PLT aggregation and size of the aggregates were compared between PLT in stored PC before transfusion with the PLT-rich plasma (PRP) from the recipients after transfusion and with PRP from patients with moderate decrease in PLT counts after chemotherapy. RESULTS: The maximum extent of PLT aggregation was significantly higher in PRP collected from the patients after transfusion compared to the extent obtained before transfusion. There were no significant differences in the maximum extents of PLT aggregation between the PRP collected from the recipients after PC transfusion and, in the same patients, when PLT counts were moderately low. CONCLUSION: These results suggest that the observed decreased in PLT aggregation after storage can improve in the body after transfusion, and transfused PLTs have similar aggregation ability compared to the PLTs derived from the patient.
Authors: Anne M Winkler; Chelsea A Sheppard; Elizabeth E Culler; Robert L Myers; Alexander Duncan; Marta-Inés Castillejo; Christopher D Hillyer; Cassandra D Josephson Journal: Transfusion Date: 2010-10-04 Impact factor: 3.157
Authors: Britt Van Aelst; Hendrik B Feys; Rosalie Devloo; Philippe Vandekerckhove; Veerle Compernolle Journal: J Vis Exp Date: 2016-03-19 Impact factor: 1.355
Authors: Maria José Dantas Coêlho; Taysa de Castro Monteiro; Felicien Gonçalves Vasquez; Kátia Luz Torres Silva; Kleber Sandro Brasil Dos Santos; Viviana Maria Araújo de Oliveira; Francimary de Oliveira Cavalcante Journal: Rev Bras Hematol Hemoter Date: 2011