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Author Spotlight: Assessing Ischemic Stroke Damage Through Middle Cerebral Artery Occlusion Model
Published on: August 11, 2023
COVID-19 and Stroke: Incidence and Etiological Description in a High-Volume Center
Manuel Requena1, Marta Olivé-Gadea2, Marian Muchada3
1Stroke Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona 119-129, Spain.; Departament de Medicina, Universitat Autónoma de Barcelona, Barcelona, Spain; Stroke Research Group, Vall d'Hebron Research Institute, Barcelona, Spain.
Insights
The rate of acute stroke in Coronavirus Disease 19 (COVID-19) patients is below 2%. Stroke was uncommon in COVID-19 patients, primarily occurring in those with severe lung injury and pre-existing risk factors.
Area of Science:
- Neurology
- Infectious Diseases
- Critical Care Medicine
Background:
- Coronavirus Disease 19 (COVID-19) is associated with an increased risk of thrombotic events.
- The precise incidence and causality of acute stroke in COVID-19 patients remain under investigation.
Purpose of the Study:
- To determine the incidence of acute stroke in patients diagnosed with COVID-19.
- To identify potential causative links between COVID-19 and stroke events.
Main Methods:
- A single-center analysis of a prospective database included patients with confirmed COVID-19 and stroke.
- Demographic, clinical, and imaging data were collected for diagnosis.
- Etiology was determined through comprehensive diagnostic work-up.
Main Results:
- 1.02% of COVID-19 patients experienced acute ischemic stroke, and 0.2% had intracranial hemorrhage.
- In most cases (60% ischemic, 100% hemorrhagic), stroke etiology was unrelated to COVID-19.
- Only 6 patients had strokes possibly related to COVID-19, all requiring mechanical ventilation; COVID-19 was an independent predictor of mortality in patients undergoing endovascular treatment.
Conclusions:
- Acute stroke is an uncommon complication of COVID-19, occurring in less than 2% of cases.
- Most strokes in COVID-19 patients had established risk factors or were unrelated to the infection.
- COVID-19 was an independent predictor of in-hospital mortality for patients who underwent endovascular treatment for stroke.
Background:
An increased rate of thrombotic events has been associated to Coronavirus Disease 19 (COVID-19) with a variable rate of acute stroke. Our aim is to uncover the rate of acute stroke in COVID-19 patients and identify those cases in which a possible causative relationship could exist.
Methods:
We performed a single-center analysis of a prospective mandatory database. We studied all patients with confirmed COVID-19 and stroke diagnoses from March 2nd to April 30th. Demographic, clinical, and imaging data were prospectively collected. Final diagnosis was determined after full diagnostic work-up unless impossible due to death.
Results:
Of 2050 patients with confirmed SARS-CoV-2 infection, 21 (1.02%) presented an acute ischemic stroke 21 and 4 (0.2%) suffered an intracranial hemorrhage. After the diagnostic work-up, in 60.0% ischemic and all hemorrhagic strokes patients an etiology non-related with COVID-19 was identified. Only in 6 patients the stroke cause was considered possibly related to COVID-19, all of them required mechanical ventilation before stroke onset. Ten patients underwent endovascular treatment; compared with patients who underwent EVT in the same period, COVID-19 was an independent predictor of in-hospital mortality (50% versus 15%; Odds Ratio, 6.67; 95% CI, 1.1-40.4; p 0.04).
Conclusions:
The presence of acute stroke in patients with COVID-19 was below 2% and most of them previously presented established stroke risk factors. Without other potential cause, stroke was an uncommon complication and exclusive of patients with a severe pulmonary injury. The presence of COVID-19 in patients who underwent EVT was an independent predictor of in-hospital mortality.
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