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Updated: Nov 20, 2025

Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States
Published on: April 1, 2015
Increased resistance to fibrinolysis activation in patients with coronavirus disease 2019: a case series
Patricia Duque1, Maite Chasco-Ganuza, Alba Burgos-Santamaria
1Anesthesiology and Critical Care Department, Gregorio Marañon Hospital, Madrid, Spain.
Abstract:
We describe seven critically ill and seven noncritically ill patients with coronavirus disease 2019 infection. Two viscoelastic assays were performed with ClotPro technology, activated by extrinsic system test and recombinant tissue plasminogen activator challenge test. Coagulation profile presents a marked hypercoagulability with increased resistance to fibrinolysis, reflected by tissue plasminogen activator test. Our pathological observations show that the hypercoagulative status described in these patients is, at least partially, secondary to fibrinolysis shutdown.
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