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Hypercoagulation and Antithrombotic Treatment in Coronavirus 2019: A New Challenge.
Abstract The novel coronavirus 2019 (COVID-19) is clinically characterized by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is responsible for a high number of patients needing mechanical ventilation or intensive care units treatment and for the elevated mortality risk. A link between COVID-19 and multiorgan failure may be dependent on the fact that most COVID-19 patients are complicated by pneumonia, which is known to be associated with early changes of clotting and platelet activation and artery dysfunction; these changes may implicate in thrombotic-related events such as myocardial infarct...
Source: Thrombosis and Haemostasis - April 28, 2020 Category: Hematology Authors: Violi F, Pastori D, Cangemi R, Pignatelli P, Loffredo L Tags: Thromb Haemost Source Type: research

Hyperacute multi-organ thromboembolic storm in COVID-19: a case report
We report a 66-year-old female patient with post-mortem diagnosis of COVID-19 who presented progressive livedo racemosa, acute renal failure and myocardial injury, as well as an absence of respiratory symptoms. Transthoracic echocardiography showed severe spontaneous echo contrast in the right cardiac chambers and right-sided cardiac overload presumed to result from pulmonary microvascular thrombosis or embolism.d-dimer levels were increased. The patient developed an acute ischemic stroke and died 2  days following presentation despite therapeutic anticoagulation. Her predominantly thromboembolic presentation supports the...
Source: Journal of Thrombosis and Thrombolysis - June 5, 2020 Category: Hematology Source Type: research

Thrombosis in Covid-19 and non-Covid-19 pneumonia: role of platelets
Platelets. 2021 Jun 7:1-9. doi: 10.1080/09537104.2021.1936478. Online ahead of print.ABSTRACTPlatelets may be a target of bacteria and viruses, which can directly or indirectly activate them so promoting thrombosis. In accordance with this, community-acquired pneumonia (CAP) is complicated by ischemia-related vascular disease (myocardial infarction and stroke) in roughly 10% of patients while the incidence of venous thrombosis is uncertain. In CAP platelet biosynthesis of TxA2 is augmented and associated with myocardial infarction; however, a cause-effect relationship is still unclear as unclear is if platelet activation p...
Source: Platelets - June 7, 2021 Category: Hematology Authors: Francesco Violi Vittoria Cammisotto Pasquale Pignatelli Source Type: research

Interaction between thrombin potential and age on early clinical outcome in patients hospitalized for COVID-19
AbstractPatients with Coronavirus Disease-2019 (COVID ‐19) have haemostatic dysfunction and are at higher risk of thrombotic complications. Although age is a major risk factor for outcome impairment in COVID-19, its impact on coagulative patterns here is still unclear. We investigated the association of Endogenous Thrombin Potential (ETP) with thromb otic and haemorrhagic events according to different ages in patients admitted for COVID-19. A total of 27 patients with COVID‐19-related pneumonia, without need for intensive care unit admission or mechanical ventilation at hospital presentation, and 24 controls with non-C...
Source: Journal of Thrombosis and Thrombolysis - June 10, 2021 Category: Hematology Source Type: research

Arterial Thrombotic Events in Hospitalized COVID-19 Patients: A Short Review and Meta-Analysis
In conclusion, we found a non-negligible proportion of ATE in patients hospitalized for COVID-19. Our results are similar to those found in hospitalized patients with influenza or with non-COVID viral pneumonia. [...] Thieme Medical Publishers, Inc. 333 Seventh Avenue, 18th Floor, New York, NY 10001, USAArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text
Source: Seminars in Thrombosis and Hemostasis - July 6, 2022 Category: Hematology Authors: Candeloro, Matteo Schulman, Sam Tags: Review Article Source Type: research