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Platelet function analysed by ROTEM platelet in cardiac surgery after cardiopulmonary bypass and platelet transfusion
Author(s) -
Kjellberg Gunilla,
Holm Manne,
Lindvall Gabriella,
Gryfelt Gunilla,
Linden Jan,
Wikman Agneta
Publication year - 2020
Publication title -
transfusion medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.471
H-Index - 59
eISSN - 1365-3148
pISSN - 0958-7578
DOI - 10.1111/tme.12678
Subject(s) - cardiopulmonary bypass , platelet , medicine , thromboelastometry , platelet transfusion , cardiac surgery , anesthesia , platelet disorder , whole blood , cardiology
Summary Objectives The aim of this study was to investigate whether ROTEM platelet can provide additional information to the traditional ROTEM analysis to guide treatment with platelet transfusions in cardiac surgery and to identify factors triggering platelet administration. Background Platelets play a crucial role in coagulation and haemostasis after cardiac surgery. Excessive bleeding after cardiopulmonary bypass usually requires transfusions of blood products, including platelets. The ROTEM platelet is a novel point‐of‐care analysis for whole blood. Materials and methods We included 23 patients scheduled for complex cardiac surgery. ROTEM (in‐tem, ex‐tem), ROTEM platelet (ARA‐tem, ADP‐tem and TRAP‐tem) and platelet count were analysed before induction of anaesthesia (T0), after cardiopulmonary bypass and protamine reversal (T1) and after platelet transfusion (T2, n = 10). Results ROTEM and ROTEM platelet tests were all significantly reduced between T0 and T1. ROTEM parameters improved significantly after platelet transfusion. Regarding ROTEM platelet, only TRAP‐tem increased between T1 and T2 ( P = .008). Factors triggering platelet transfusion were long duration of surgery and time on cardiopulmonary bypass. Conclusion ROTEM platelet with thrombin activation, TRAP‐tem, improved significantly, indicating that platelet transfusion may reverse cardiopulmonary bypass‐induced platelet dysfunction. Further studies are needed to evaluate whether TRAP‐tem can be a valuable analysis regarding indications for transfusion of platelets after extensive cardiac surgery.