Asian Journal of Transfusion Science
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ORIGINAL ARTICLE
Year : 2019  |  Volume : 13  |  Issue : 1  |  Page : 23-29

A study on factors influencing the hemostatic potential of fresh frozen plasma


1 Department of Transfusion Medicine, Fortis Hospital Mulund, Mumbai, India
2 Department of Transfusion Medicine, Super Speciality Cancer Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
3 Department of Transfusion Medicine, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India

Correspondence Address:
Anju Dubey
Department of Transfusion Medicine, Super Speciality Cancer Institute, Lucknow, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ajts.AJTS_139_17

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Background: Fresh frozen plasma (FFP) is administered to correct deficiencies of various coagulation factors. The level of these factors in FFP varies with donor demographics and ex-vivo processing of plasma. In this study we have compared the quality control parameters of FFP collected from donors of different genders, age groups, ABO blood groups, smoking and alcohol intake habits. Materials and Methods: Four ABO group matched plasma units were pooled, split and further processed by four different freeze-thaw algorithms: frozen by contact shock freezer; thawed at 37°C, frozen by contact shock freezer; thawed at 45°C, frozen by mechanical freezer; thawed at 37°C, frozen by mechanical freezer; thawed at 45°C. The coagulation factor levels in plasma units were compared. Results: There were no significant differences in the quality parameters with donor age, gender and alcohol intake. Factor VIII levels were significantly lower in O group FFP (P < 0.05). Smokers had significantly higher levels of fibrinogen (P < 0.05). There were no significant differences in PT, fibrinogen and factor VII levels of FFP processed through various algorithms. Plasma frozen rapidly through contact shock freezer had significantly lower aPTT and higher levels of factor V and VIII compared to mechanical freezing. There were no significant differences between PT, aPTT, fibrinogen, factor V, factor VII and factor VIII levels of FFP thawed at 37°C and 45°C. Mean thawing time was 28 minutes at 37°C and 17 minutes at 45°C. Conclusion: Rapid freezing is recommended for optimum preservation of coagulation factors. Thawing may be done at 45°C in cases of emergency, without compromising hemostatic potential.


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2006 - Asian Journal of Transfusion Science | Published by Wolters Kluwer - Medknow
Online since 10th November, 2006