Abstract
COVID-19 causes a hypercoagulable state leading to thrombosis. Many of these thrombotic complications occur in those with severe disease and late in the disease course. COVID-19 has recently been associated with cerebral venous thrombosis (CVT). To study the onset of CVT in relation to COVID-19 and compare their characteristics and outcomes with non-COVID CVT patients admitted during the same period. This multicentric, retrospective study conducted between April 4 and October 15, 2020, included adult patients with CVT who were positive for the SARS-CoV-2 virus and compared them with CVT patients who were negative for the SARS-CoV-2 virus hospitalized during the same period. We studied their clinical profile, risk factors for CVT, and markers of COVID coagulopathy, imaging characteristics, and factors influencing their outcomes. We included 18 COVID-19-infected patients and compared them with 43 non-COVID-19 CVT patients. Fourteen patients in the COVID-19 group presented with CVT without the other typical features of COVID-19. Thirteen patients had non-severe COVID-19 disease. Twelve patients had a good outcome (mRS ≤2). Mortality and disability outcomes were not significantly different between the two groups. Our study suggests a possible association between COVID-19 and CVT. CVT can be the presenting manifestation of an underlying COVID-19, occurring early in the course of COVID-19 and even in those with mild disease. Patients with worse GCS on admission, abnormal HRCT chest, severe COVID-19, and need for invasive ventilation had a poor outcome.
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