key: cord-312519-31mrmgmk authors: Dauerman, Harold L. title: The Unbearable Thrombus of COVID-19: Primary PCI, Thrombus, and COVID-19 date: 2020-09-08 journal: J Am Coll Cardiol DOI: 10.1016/j.jacc.2020.07.027 sha: doc_id: 312519 cord_uid: 31mrmgmk [Figure: see text] for patients with an acute culprit lesion, are there unique features of the PCI procedure that warrant caution and concern? Via detailed angiographic comparison to a COVID-19-negative control group, they observed a dramatic increase in thrombus burden that may compliment prior insights into the pathophysiology of the COVID-19 pandemic. The inclusion criteria of COVID-19 STEMI registries vary widely: some include COVID-19-positive patients, some do not. And, the pathophysiology in 76, NO. 10, 2020 Multivessel thrombosis was seen in 17.9% of COVID-19 STEMI patients compared with none of the COVID-19-negative patients, as seen in a prior case report (7); stent thrombosis as the initial presentation was also 10 times more likely (p < 0.05 for both comparisons). to the virus can be measured by multiple serological parameters including C-reactive protein and D-dimer (12) . The connection between inflammation and thrombosis is previously established and occurs via activation of leukocytes, platelets, endothelium, and smooth muscle cells (13) . Furthermore, the association of viral infection and enhanced risk of myocardial infarction has been described with respect to influenza, and an inflammatory mediation of risk is plausible (14, 15 High thrombus burden in patients with COVID-19 presenting with ST-segment elevation myocardial infarction ST-elevation myocardial infarction in patients with COVID-19: clinical and angiographic outcomes COVID-19-a case series Impact of coronavirus disease 2019 (COVID-19) outbreak on ST-segment-elevation myocardial infarction care in Hong Kong Reduction in ST-segment elevation cardiac catheterization laboratory activations in the United States during COVID-19 pandemic Effect of the COVID-19 pandemic on ST-segmentelevation myocardial infarction presentations and in-hospital outcomes Multivessel coronary thrombosis in a patient with COVID-19 pneumonia Angiographic stent thrombosis after routine use of drug-eluting stents in ST-segment elevation myocardial infarction: the importance of thrombus burden both epicardial and myocardial perfusion Management of acute myocardial infarction during the COVID-19 pandemic Clinical course and risk factors for mortality of adult inpatients with COVID-19 in Wuhan, China: a retrospective cohort study COVID-19 and thrombotic or thromboembolic disease: implications for prevention, antithrombotic therapy, and follow-up: JACC state-ofthe-art review Inflammation and thrombosis: the clot thickens Acute myocardial infarction after laboratory-confirmed influenza infection Inflammation, immunity, and infection in atherothrombosis: JACC review topic of the week Hypercoagulability of COVID-19 patients in intensive care unit: a report of thromboelastography findings and other parameters of hemostasis Risk of ischemic stroke in patients with coronavirus disease 2019 (COVID-19) vs patients with influenza