R Beyrouti1, J G Best2, A Chandratheva1,2, R J Perry1,2, D J Werring3,4. 1. Comprehensive Stroke Service, National Hospital for Neurology and Neurosurgery, University College Hospitals NHS Foundation Trust, Queen Square, London, WC1N 3BG, UK. 2. Stroke Research Centre, Department of Brain Repair and Rehabilitation, UCL Queen Square Institute of Neurology, First Floor, Russell Square House, 10-12 Russell Square, London, WC1B 5EH, UK. 3. Comprehensive Stroke Service, National Hospital for Neurology and Neurosurgery, University College Hospitals NHS Foundation Trust, Queen Square, London, WC1N 3BG, UK. d.werring@ucl.ac.uk. 4. Stroke Research Centre, Department of Brain Repair and Rehabilitation, UCL Queen Square Institute of Neurology, First Floor, Russell Square House, 10-12 Russell Square, London, WC1B 5EH, UK. d.werring@ucl.ac.uk.
Abstract
BACKGROUND AND PURPOSE: There are very few studies of the characteristics and causes of ICH in COVID-19, yet such data are essential to guide clinicians in clinical management, including challenging anticoagulation decisions. We aimed to describe the characteristics of spontaneous symptomatic intracerebral haemorrhage (ICH) associated with COVID-19. METHODS: We systematically searched PubMed, Embase and the Cochrane Central Database for data from patients with SARS-CoV-2 detected prior to or within 7 days after symptomatic ICH. We did a pooled analysis of individual patient data, then combined data from this pooled analysis with aggregate-level data. RESULTS: We included data from 139 patients (98 with individual data and 41 with aggregate-level data). In our pooled individual data analysis, the median age (IQR) was 60 (53-67) years and 64% (95% CI 54-73.7%) were male; 79% (95% CI 70.0-86.9%) had critically severe COVID-19. The pooled prevalence of lobar ICH was 67% (95% CI 56.3-76.0%), and of multifocal ICH was 36% (95% CI 26.4-47.0%). 71% (95% CI 61.0-80.4%) of patients were treated with anticoagulation (58% (95% CI 48-67.8%) therapeutic). The median NIHSS was 28 (IQR 15-28); mortality was 54% (95% CI 43.7-64.2%). Our combined analysis of individual and aggregate data showed similar findings. The pooled incidence of ICH across 12 cohort studies of inpatients with COVID-19 (n = 63,390) was 0.38% (95% CI 0.22-0.58%). CONCLUSIONS: Our data suggest that ICH associated with COVID-19 has different characteristics compared to ICH not associated with COVID-19, including frequent lobar location and multifocality, a high rate of anticoagulation, and high mortality. These observations suggest different underlying mechanisms of ICH in COVID-19 with potential implications for clinical treatment and trials.
BACKGROUND AND PURPOSE: There are very few studies of the characteristics and causes of ICH in COVID-19, yet such data are essential to guide clinicians in clinical management, including challenging anticoagulation decisions. We aimed to describe the characteristics of spontaneous symptomatic intracerebral haemorrhage (ICH) associated with COVID-19. METHODS: We systematically searched PubMed, Embase and the Cochrane Central Database for data from patients with SARS-CoV-2 detected prior to or within 7 days after symptomatic ICH. We did a pooled analysis of individual patient data, then combined data from this pooled analysis with aggregate-level data. RESULTS: We included data from 139 patients (98 with individual data and 41 with aggregate-level data). In our pooled individual data analysis, the median age (IQR) was 60 (53-67) years and 64% (95% CI 54-73.7%) were male; 79% (95% CI 70.0-86.9%) had critically severe COVID-19. The pooled prevalence of lobar ICH was 67% (95% CI 56.3-76.0%), and of multifocal ICH was 36% (95% CI 26.4-47.0%). 71% (95% CI 61.0-80.4%) of patients were treated with anticoagulation (58% (95% CI 48-67.8%) therapeutic). The median NIHSS was 28 (IQR 15-28); mortality was 54% (95% CI 43.7-64.2%). Our combined analysis of individual and aggregate data showed similar findings. The pooled incidence of ICH across 12 cohort studies of inpatients with COVID-19 (n = 63,390) was 0.38% (95% CI 0.22-0.58%). CONCLUSIONS: Our data suggest that ICH associated with COVID-19 has different characteristics compared to ICH not associated with COVID-19, including frequent lobar location and multifocality, a high rate of anticoagulation, and high mortality. These observations suggest different underlying mechanisms of ICH in COVID-19 with potential implications for clinical treatment and trials.
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