Risk of Ischemic Stroke in Patients with Covid-19 versus Patients with Influenza

Importance: Case series without control groups suggest that Covid-19 may cause ischemic stroke, but whether Covid-19 is associated with a higher risk of ischemic stroke than would be expected from a viral respiratory infection is uncertain. Objective: To compare the rate of ischemic stroke between patients with Covid-19 and patients with influenza, a respiratory viral illness previously linked to stroke. Design: A retrospective cohort study. Setting: Two academic hospitals in New York City. Participants: We included adult patients with emergency department visits or hospitalizations with Covid-19 from March 4, 2020 through May 2, 2020. Our comparison cohort included adult patients with emergency department visits or hospitalizations with influenza A or B from January 1, 2016 through May 31, 2018 (calendar years spanning moderate and severe influenza seasons). Exposures: Covid-19 infection confirmed by evidence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the nasopharynx by polymerase chain reaction, and laboratory-confirmed influenza A or B. Main Outcomes and Measures: A panel of neurologists adjudicated the primary outcome of acute ischemic stroke and its clinical characteristics, etiological mechanisms, and outcomes. We used logistic regression to compare the proportion of Covid-19 patients with ischemic stroke versus the proportion among patients with influenza. Results: Among 2,132 patients with emergency department visits or hospitalizations with Covid-19, 31 patients (1.5%; 95% confidence interval [CI], 1.0%-2.1%) had an acute ischemic stroke. The median age of patients with stroke was 69 years (interquartile range, 66-78) and 58% were men. Stroke was the reason for hospital presentation in 8 (26%) cases. For our comparison cohort, we identified 1,516 patients with influenza, of whom 0.2% (95% CI, 0.0-0.6%) had an acute ischemic stroke. After adjustment for age, sex, and race, the likelihood of stroke was significantly higher with Covid-19 than with influenza infection (odds ratio, 7.5; 95% CI, 2.3-24.9). Conclusions and Relevance: Approximately 1.5% of patients with emergency department visits or hospitalizations with Covid-19 experienced ischemic stroke, a rate 7.5-fold higher than in patients with influenza. Future studies should investigate the thrombotic mechanisms in Covid-19 in order to determine optimal strategies to prevent disabling complications like ischemic stroke..

Medienart:

Preprint

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

bioRxiv.org - (2021) vom: 24. März Zur Gesamtaufnahme - year:2021

Sprache:

Englisch

Beteiligte Personen:

Merkler, Alexander E. [VerfasserIn]
Parikh, Neal S. [VerfasserIn]
Mir, Saad [VerfasserIn]
Gupta, Ajay [VerfasserIn]
Kamel, Hooman [VerfasserIn]
Lin, Eaton [VerfasserIn]
Lantos, Joshua [VerfasserIn]
Schenck, Edward J. [VerfasserIn]
Goyal, Parag [VerfasserIn]
Bruce, Samuel S. [VerfasserIn]
Kahan, Joshua [VerfasserIn]
Lansdale, Kelsey N. [VerfasserIn]
LeMoss, Natalie M. [VerfasserIn]
Murthy, Santosh B. [VerfasserIn]
Stieg, Philip E. [VerfasserIn]
Fink, Matthew E. [VerfasserIn]
Iadecola, Costantino [VerfasserIn]
Segal, Alan Z. [VerfasserIn]
Campion, Thomas R. [VerfasserIn]
Diaz, Ivan [VerfasserIn]
Zhang, Cenai [VerfasserIn]
Navi, Babak B. [VerfasserIn]

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doi:

10.1101/2020.05.18.20105494

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XBI017925118