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Use of Plasma in Central Nervous System Bleeding: Consensus Recommendations. Ira A. Shulman, MD Professor and Vice Chair of Pathology, KSOM of USC Director USC Transfusion Medicine Service Group Laboratory Director, LAC+USC Medical Center. Notice of Faculty Disclosure.
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Use of Plasma in Central Nervous System Bleeding: Consensus Recommendations Ira A. Shulman, MD Professor and Vice Chair of Pathology, KSOM of USC Director USC Transfusion Medicine Service Group Laboratory Director, LAC+USC Medical Center
Notice of Faculty Disclosure In accordance with ACCME guidelines, Dr. Shulman has disclosed the following financial relationships with commercial interests:
CHALLENGES TO CREATING CONSENSUS RECOMMENDATIONS FOR USE OF PLASMA IN CNS BLEEDING • QUALITY OF DATA • PUBLISHED DATA IS OFTEN BASED ON FFP USAGE • TODAY, PHYSICIANS ORDER FFP, BUT PATIENT OFTEN GETS SOMETHING ELSE
BLOOD COMPONENTS TRANSFUSEDIN THE US IN 2011 * Heterogeneous Product Lines THE 2011 NATIONAL BLOOD COLLECTION AND UTILIZATION SURVEY REPORT
Each Donor is Different Collection Methods Vary
Heterogeneous Product Lines • FRESH FROZEN PLASMA (FFP): frozen within 8 hours of collection • Plasma Frozen within 24 Hours (FP24): frozen within 24 hours of collection • Thawed Plasma (TP): derived from thawed FFP or thawed FP24 and maintained for a maximum of 5 days in the refrigerator
Plasma Collected in US FFP from WB; 1,813K (31%) FP24 from WB; 2,802K (47%) THE 2011 NATIONAL BLOOD COLLECTION AND UTILIZATION SURVEY REPORT
Types of plasma transfused, 2008-2011 THE 2011 NATIONAL BLOOD COLLECTION AND UTILIZATION SURVEY REPORT
FFP VS. FP24FACTOR LEVELS Decline in clotting factors is not significant except for FVIII; levels are significantly lower in PF24 than FFP but within ‘normal’ range
Thawed FP 24 Coagulation LevelsDay 0 to Day 5 Triulzi et al, Transfusion, vol.48 Dec 2008 pg 2525
Scott E, et al. Transfusion 2008;49:1584-91 Thawed FFP vs Thawed FP24 NE = not established PC = Protein C Only results from group O products were used for statistical comparisons of factor VIII
THAWED PLASMA FACTOR LEVELS The activity of all factors assayed, except for Protein S, were within the normal range during the 5-day storage period, supporting comparable factor assay levels in thawed plasma from FFP and FP24 Yazer, et al. Transfusion 2008;48:2525
Thawed at 30-37ºC Stored frozen colder than -18°C 4ºC Handling Options for FFP / FP24 FFP / FP24 FFP / FP24 Thawed >24 h Thawed Plasma Good up to 5 d after thawing
Plasma Transfusions can be ‘risky business’ Hazards of plasma transfusion, include… • Hemolytic Reaction • Volume Overload (TACO) • TRALI • Allergic/Anaphylactic • Disease Transmission
VOLUME OF PLASMA TRANSFUSED TO ACHIEVE THERAPEUTIC GOAL CAN BE VERY LARGE 1500 mL (6 U) FFP to reduce INR from 6.0 => 3.0 1500 mL (6 U) FFP to reduce INR from 3.0 => 1.7 1500 mL (6 U) FFP to reduce INR from 2.0 => 1.5 2500 mL (10 U) FFP to reduce INR from 2.0 => 1.3 Holand LL, Brooks JP. Am J Clin Pathol 2006;126:1-7