BACKGROUND AND OBJECTIVES: Several pathogen inactivation methods currently applied to therapeutic plasma may result in products with different hemostatic properties. This study aims at evaluating and comparing the hemostatic potential of different therapeutic plasma preparations currently available in France. MATERIALS AND METHODS: We studied three types of pathogen-reduced plasma for transfusion (MB/light, Amotosalen/UVA, industrial S/D plasma). Quarantine, non-pathogen-reduced plasma, was used as a control. This study compared more specifically the content in FVIII, fibrinogen (clottable and antigen assays) and ADAMTS-13 and evaluated the intrinsic hemostatic properties using a thrombin generation test [Calibrated Automated Thrombogram (CAT)] at high and low concentrations of tissue factor to assess the maximum quantity of thrombin generated or the contribution of FVIII and FIX in the amplification phase of thrombin generation, respectively. RESULTS: The median FVIII concentration was >70 IU/dl for each preparation. Endogenous thrombin potential values were significantly different among the methods of plasma preparation (P<0·001) but were all in the range of the values measured in donors' plasma. Control by the thrombomodulin-activated protein C system was preserved in all preparations (>50% inhibition of endogenous thrombin potential). Fibrinogen concentrations were all within normal range but fibrinogen levels were lower in the plasmas treated with photochemical methods. ADAMTS-13 levels were preserved. CONCLUSION: The hemostatic potential appears well preserved in all therapeutic plasmas tested but there are some differences between preparations, the clinical relevance of which remains to be elucidated.
BACKGROUND AND OBJECTIVES: Several pathogen inactivation methods currently applied to therapeutic plasma may result in products with different hemostatic properties. This study aims at evaluating and comparing the hemostatic potential of different therapeutic plasma preparations currently available in France. MATERIALS AND METHODS: We studied three types of pathogen-reduced plasma for transfusion (MB/light, Amotosalen/UVA, industrial S/D plasma). Quarantine, non-pathogen-reduced plasma, was used as a control. This study compared more specifically the content in FVIII, fibrinogen (clottable and antigen assays) and ADAMTS-13 and evaluated the intrinsic hemostatic properties using a thrombin generation test [Calibrated Automated Thrombogram (CAT)] at high and low concentrations of tissue factor to assess the maximum quantity of thrombin generated or the contribution of FVIII and FIX in the amplification phase of thrombin generation, respectively. RESULTS: The median FVIII concentration was >70 IU/dl for each preparation. Endogenous thrombin potential values were significantly different among the methods of plasma preparation (P<0·001) but were all in the range of the values measured in donors' plasma. Control by the thrombomodulin-activated protein C system was preserved in all preparations (>50% inhibition of endogenous thrombin potential). Fibrinogen concentrations were all within normal range but fibrinogen levels were lower in the plasmas treated with photochemical methods. ADAMTS-13 levels were preserved. CONCLUSION: The hemostatic potential appears well preserved in all therapeutic plasmas tested but there are some differences between preparations, the clinical relevance of which remains to be elucidated.
Authors: Reed W Kamyszek; Matthew W Foster; Brooke A Evans; Keaton Stoner; Jessica Poisson; Amudan J Srinivasan; J Will Thompson; M Arthur Moseley; Micah J Mooberry; Ian J Welsby Journal: Blood Transfus Date: 2020-08-06 Impact factor: 3.443
Authors: Meghan Delaney; Oliver Karam; Lani Lieberman; Katherine Steffen; Jennifer A Muszynski; Ruchika Goel; Scot T Bateman; Robert I Parker; Marianne E Nellis; Kenneth E Remy Journal: Pediatr Crit Care Med Date: 2022-01-01 Impact factor: 3.971
Authors: Charles L Percy; Rudolf Hartmann; Rhidian M Jones; Subramaniam Balachandran; Dheeraj Mehta; Michael Dockal; Friedrich Scheiflinger; Valerie B O'Donnell; Judith E Hall; Peter W Collins Journal: Blood Coagul Fibrinolysis Date: 2015-06 Impact factor: 1.276
Authors: José Luis Arroyo; Eva Martínez; Cristina Amunárriz; Carmen Muñoz; Iñigo Romón; Ignacio Álvarez; José María García Journal: Transfus Apher Sci Date: 2020-04-12 Impact factor: 1.764