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Specialty: Hematology
Condition: Thrombosis
Infectious Disease: COVID-19

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Total 71 results found since Jan 2013.

Characteristics and comparisons of acute stroke in “recovered & quot; to “active COVID-19 and “pre-pandemic” in Qatar database
AbstractUnderstanding the relationship of COVID-19 to stroke is important. We compare characteristics of pre-pandemic stroke (PPS), cases in acute COVID infection (CS) and in patients who have recovered from COVID-19 infection (RCS). We interrogated the Qatar stroke database for all stroke admissions between Jan 2020 and Feb 2021 (PPS) to CS and RCS to determine how COVID-19 affected ischemic stroke sub-types, clinical course, and outcomes prior to, during and post-pandemic peak. There were 3264 cases admitted (pre-pandemic: 3111, stroke in COVID-19: 60 and recovered COVID-19 stroke: 93). Patients with CS were significantl...
Source: Journal of Thrombosis and Thrombolysis - March 4, 2022 Category: Hematology Source Type: research

Impact of the pandemic of COVID-19 on emergency attendance for stroke and acute myocardial infarction in Beijing, China
This study covered from 03/01/2018 to 06/03/2020, including 19  weeks of lockdown period and 99 weeks before. A segmented Poisson regression model was used to estimate the immediate change and the monthly change in the secular trend of the emergency attendance rates. The emergency attendance rates of stroke and AMI cut in half at the beginning of the lockdown period, with 52.1% (95% CI 45.8% to 57.7%) and 63.1% (95% CI 56.1% to 63.1%) immediate decreases for stroke and AMI, respectively. Then during the lockdown period, 7.0% (95% CI 2.5%, 11.6%) and 16.1% (95% CI 9.5, 23.1) increases per month in the secular trends of em...
Source: Journal of Thrombosis and Thrombolysis - April 26, 2021 Category: Hematology Source Type: research

Impact of the COVID-19 pandemic on hyperacute stroke treatment: experience from a comprehensive stroke centre in Singapore
AbstractThe Coronavirus disease 2019 (COVID-19) pandemic is rapidly evolving and affecting healthcare systems across the world. Singapore has escalated its alert level to Disease Outbreak Response System Condition (DORSCON) Orange, signifying severe disease with community spread. We aimed to study the overall volume of AIS cases and the delivery of hyperacute stroke services during DORSCON Orange. This was a single-centre, observational cohort study performed at a comprehensive stroke centre responsible for AIS cases in the western region of Singapore, as well as providing care for COVID-19 patients. All AIS patients revie...
Source: Journal of Thrombosis and Thrombolysis - July 12, 2020 Category: Hematology Source Type: research

2021 Focused Update Consensus Guidelines of the Asia Pacific Heart Rhythm Society on Stroke Prevention in Atrial Fibrillation: Executive Summary
Thromb Haemost. 2021 Nov 13. doi: 10.1055/s-0041-1739411. Online ahead of print.ABSTRACTThe consensus of the Asia Pacific Heart Rhythm Society (APHRS) on stroke prevention in atrial fibrillation (AF) has been published in 2017 which provided useful clinical guidance for cardiologists, neurologists, geriatricians, and general practitioners in the Asia-Pacific region. In these years, many important new data regarding stroke prevention in AF were reported. The practice guidelines subcommittee members comprehensively reviewed updated information on stroke prevention in AF, and summarized them in this 2021 focused update of the...
Source: Thrombosis and Haemostasis - November 13, 2021 Category: Hematology Authors: Tze-Fan Chao Boyoung Joung Yoshihide Takahashi Toon Wei Lim Eue-Keun Choi Yi-Hsin Chan Yutao Guo Charn Sriratanasathavorn Seil Oh Ken Okumura Gregory Y H Lip Source Type: research

Macrothrombosis and stroke in patients with mild Covid-19 infection.
We describe cases of patients in New York City presenting with stroke secondary to large vessel thrombosis without occlusion, incidentally found to have COVID-19 with only mild respiratory symptoms. This is in contrast to the venous thrombosis and microangiopathy that has been reported in patients with severe COVID-19. Our cases suggest that even in the absence of severe disease, patients with COVID-19 may be at increased risk of thrombus formation leading to stroke, perhaps due to viral involvement of the endothelium. Further systematic study is needed, since this may have implications for primary and secondary stroke pre...
Source: Thrombosis and Haemostasis - May 27, 2020 Category: Hematology Authors: Fara MG, Stein LK, Skliut M, Morgello S, Fifi JT, Dhamoon MS Tags: J Thromb Haemost Source Type: research

Stroke and presence of patent foramen ovale in sickle cell disease
AbstractSickle cell disease (SCD) is an inherited monogenic hemoglobinopathy characterized by formation of sickle erythrocytes under conditions of deoxygenation. Sickle erythrocytes can lead to thrombus formation and vaso-occlusive episodes that may result in hemolytic anemia, pain crisis and multiple organ damage. Moreover, SCD is characterized by endothelial damage, increased inflammatory response, platelet activation and aggravation, and activation of both the intrinsic and the extrinsic coagulation pathways. Cerebrovascular events constitute an important clinical complication of SCD. Children with SCD have a 300-fold h...
Source: Journal of Thrombosis and Thrombolysis - February 26, 2021 Category: Hematology Source Type: research

COVID-19 and ischemic stroke: a systematic review and meta-summary of the literature
We report the pooled incidence of AIS in COVID-19 patients to be 1.2%, with a high mortality rate. Elevatedd-dimer, fibrinogen and the presence of antiphospholipid antibodies appear to be prominent in COVID-19 patients with concomitant AIS, but further mechanistic studies are required to elucidate their role in pathogenesis.
Source: Journal of Thrombosis and Thrombolysis - July 12, 2020 Category: Hematology Source Type: research

Thrombocytopenia with acute ischemic stroke and bleeding in a patient newly vaccinated with an adenoviral vector-based COVID-19 vaccine
We describe the first Danish case of presumed inflammatory and thrombotic response to vaccination with an adenoviral (ChAdOx1) vector based COVID-19 vaccine (AZD1222). The case describes a 60-year old woman, who was admitted with intractable abdominal pain seven days after receiving the vaccine. Computer Tomography (CT) of the abdomen revealed bilateral adrenal hemorrhages. On the following day she developed a massive right sided ischemic stroke and Magnetic Resonance Imaging (MRI) angiography showed occlusion of the right internal carotid artery. The ischemic area was deemed too large to offer reperfusion therapy. During ...
Source: Thrombosis and Haemostasis - April 20, 2021 Category: Hematology Authors: Rolf Ankerlund Blauenfeldt S øren Risom Kristensen Siw Leiknes Ernstsen Claudia Christina Hilt Kristensen Claus Ziegler Simonsen Anne-Mette Hvas Source Type: research

Impact of COVID-19 on thrombus composition and response to thrombolysis: Insights from a monocentric cohort population of COVID-19 patients with acute ischemic stroke
CONCLUSIONS: These results show that COVID-19 does not impact NETs content or worsen fibrinolysis resistance of AIS thrombi, a therapeutic hurdle that could be overcome by DNase 1 even in the context of SARS-Cov-2 infection.PMID:35032088 | DOI:10.1111/jth.15646
Source: Thrombosis and Haemostasis - January 15, 2022 Category: Hematology Authors: Jean-Philippe Desilles Mialitiana Solo Nomenjanahary Arturo Consoli V éronique Ollivier Doroth ée Faille Marie-Charlotte Bourrienne Myl ène Hamdani S ébastien Dupont Lucas Di Meglio Simon Escalard Benjamin Maier Raphael Blanc Michel Piotin Bertrand La Source Type: research

Protein S: function, regulation, and clinical perspectives
Purpose of review Protein S (PS) is an essential natural anticoagulant. PS deficiency is a major contributor to acquired hypercoagulability. Acquired hypercoagulability causes myocardial infarction, stroke, and deep vein thrombosis in millions of individuals. Yet, despite its importance in hemostasis, PS is the least understood anticoagulant. Even after 40 years since PS was first described, we are still uncovering information about how PS functions. The purpose of this review is to highlight recent findings that advance our understanding of the functions of PS and explain hypercoagulability caused by severe PS defic...
Source: Current Opinion in Hematology - August 6, 2021 Category: Hematology Tags: HEMOSTASIS AND THROMBOSIS: Edited by Paul F. Bray Source Type: research

Risk factors for post-discharge major thromboembolism and mortality in hospitalized patients with COVID-19 with cardiovascular comorbidities
Conclusions COVID-19 inpatients with cardiovascular disease experience high rates of ATE, VTE, or ACM through 90 days post-discharge. Age > 75 years, PAD, CAS, CHF, previous VTE, and ICU admission are independent risk factors.PMID:37146648 | DOI:10.1055/a-2087-3003
Source: Thrombosis and Haemostasis - May 5, 2023 Category: Hematology Authors: Dimitrios Giannis Mark Goldin Husneara Rahman Cristina P Sison Martin Lesser Sam Ngu James Tsang Michael Qiu Shreya Sanghani Jackson Yeh Miltiadis Matsagkas Eleni Arnaoutoglou Alex C Spyropoulos Source Type: research

Thrombotic Complications in Children with COVID-19 and MIS-C
J Thromb Haemost. 2023 May 31:S1538-7836(23)00434-8. doi: 10.1016/j.jtha.2023.05.020. Online ahead of print.ABSTRACTCoronavirus disease 2019 (COVID-19) associated coagulopathy is multifactorial and involves inflammation driven hypercoagulability, endothelial dysfunction, platelet activation and impaired fibrinolysis. Hospitalized adults with COVID-19 are at an increased risk of both venous thrombo-embolism (VTE) and ischemic stroke, resulting in adverse outcomes including mortality. While children with COVID-19 follow a less severe course, both arterial and venous thrombosis have been reported in hospitalized children with...
Source: Thrombosis and Haemostasis - June 2, 2023 Category: Hematology Authors: Riten Kumar Michael J Rivkin Leslie Raffini Source Type: research