Response to the Letter to the Editor: Consideration Needed for Early Anticoagulation Following Intravenous tPA in Patients with COVID-19

We thank Dr. Angelo Jimenez and his colleagues for their letter to the editor regarding our report of a multicenter series of patients with coronavirus disease 2019 (COVID-19) who received intravenous (IV) tissue plasminogen activator (tPA) for suspected acute ischemic stroke. Their letter emphasizes the important contribution of a hypercoagulable state in patients with COVID-19.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Source Type: research

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In the rapidly evolving COVID-19 pandemic, many patients presenting with acute ischemic stroke may be potentially infected with the Severe Acute Respiratory Syndrome Coronavirus (SARS CoV-2) agent. As stroke patients are often unable to give an adequate history of preceding COVID-19 symptoms, all stroke patients in areas with high prevalence of community transmission should be considered potential cases. Observational studies have suggested an increased tendency for thrombotic events in patients infected with SARS CoV-2.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Source Type: research
AbstractThe global pandemic of novel coronavirus disease 2019 (COVID-19) has taken the entire human race by surprise and led to an unprecedented number of mortalities worldwide so far. Current clinical studies have interpreted that angiotensin-converting enzyme 2 (ACE2) is the host receptor for severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2). In addition, ACE2 is the major component of the renin-angiotensin system. ACE2 deteriorates angiotensin II, a peptide that is responsible for the promotion of stroke. The downregulation of ACE2 further activates an immunological cascade. Thus, researchers need to explore ...
Source: Molecular Neurobiology - Category: Neurology Source Type: research
: There has been increasing reports associating the coronavirus disease 2019 (COVID-19) with thromboembolic phenomenon including ischemic strokes and venous thromboembolism. Cerebral venous thrombosis (CVT) is a rare neurovascular emergency that has been observed in some COVID-19 patients, yet much remains to be learnt of its underlying pathophysiology.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Source Type: research
ConclusionsDuring the COVID-19 pandemic, the number of stroke admissions fell, and stroke severity increased. There was no statistically significant change in the delivery of thrombolysis and mechanical thrombectomy and no increase in mortality.
Source: Neurological Sciences - Category: Neurology Source Type: research
SUMMARY: Since December 2019, a novel Severe Acute Respiratory Syndrome coronavirus 2 from China has rapidly spread worldwide. Although respiratory involvement is the mainstay of coronavirus disease 2019 (COVID-19), systemic involvement has recently drawn more attention. In particular, a number of recent articles have shed light on the nervous system as one of the possible targets. At our institution, we observed 15 patients with acute brain vascular manifestations; most interesting, we had a higher prevalence of the posterior circulation acute impairment. In our series, 7 patients had acute posterior cerebral injury: 1, h...
Source: American Journal of Neuroradiology - Category: Radiology Authors: Tags: ADULT BRAIN Source Type: research
CONCLUSIONS: Chest CT provides a pragmatic, rapid additional tool for COVID-19 risk stratification among patients referred for mechanical thrombectomy. Its inclusion in a standardized regional stroke imaging protocol has enabled efficient use of hospital resources with minimal compromise or delay to the overall patient treatment schedule.
Source: American Journal of Neuroradiology - Category: Radiology Authors: Tags: INTERVENTIONAL Source Type: research
Conclusions: The occurrence of stroke in patients with COVID-19 infection is uncommon, but it may pose as an important prognostic marker and indicator of severity of infection, by causing large vessels occlusion and exhibiting a thrombo-inflammatory vascular picture. Physicians should be made aware and remain vigilant on the possible two-way relationship between stroke and COVID-19 infection. The rate of stroke among patients with COVID-19 infection may increase in the future as they share the common risk factors.
Source: Frontiers in Neurology - Category: Neurology Source Type: research
The pulmonary manifestations of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection or coronavirus disease 2019 (COVID-19) are well known. The literature on neurological manifestations and complications in patients with COVID-19 has been increasing but is still sparse. At present, there are only a few reported case reports and clinical studies on neurological manifestations of COVID-19, of which ischemic stroke is one of the most common ones. Coagulopathy and vascular endothelial dysfunction have been proposed as the complications of COVID-19 which can ultimately lead to ischemic stroke.
Source: Clinical Imaging - Category: Radiology Authors: Tags: Neuroradiology Source Type: research
We present a patient with COVID-19 pneumonia who was managed with unfractionated heparin (UFH) infusion and developed a large ischemic infarct shortly after cessation of the infusion. In retrospect, the patient's coagulation parameters were consistent with overt DIC, although some of these parameters are easily masked by the effects of UFH. These findings emphasize the importance of anticoagulation as well as its careful discontinuation, as failure to do so may result in a significant thromboembolic event.
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Coronavirus disease-19 (COVID-19) pandemic continues to grow all over the world. Neurological manifestations related to COVID-19, including acute ischemic Stroke (AIS), have been reported in recent studies. In most of these, the patients are older, have multiple co-morbidities as risk factors for AIS and have developed a severe respiratory illness. Herein, we report a 36-year-old man with no significant past medical history who recently recovered from a mild COVID-19 infection and presented with unusual pattern of arterial macrothrombosis causing AIS.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Tags: Case Report Source Type: research
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