Heparin-induced Thrombocytopenia During Multiple Extracorporeal Mechanical Support for Fulminant Myocarditis: A Case Report with a Literature Review

Heparin-induced thrombocytopenia (HIT) is a potentially fatal complication of heparin therapy, particularly during extracorporeal mechanical support requiring anticoagulation. We report the case of a 57-year-old woman with fulminant myocarditis complicated by acute kidney injury who was transferred while receiving extracorporeal membrane oxygenation and continuous renal replacement therapy with unfractionated heparin. After transfer, a rapid platelet decline and repeated circuit occlusions raised a strong suspicion of HIT based on the 4Ts score. Heparin was replaced with nafamostat mesilate or argatroban, and HIT antibodies were detected. Both bleeding and thrombotic complications occurred during intensive care, thus reflecting the complexity of managing critically ill patients receiving multiple extracorporeal mechanical supports.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

Fulminant myocarditis on ECMO and CRRT complicated by HIT with rapid platelet decline and repeated circuit occlusion; heparin replaced with nafamostat mesilate or argatroban, illustrating the complexity of HIT management during multi-modal extracorporeal support.

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