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  • Title: Risk of Intracerebral Hemorrhage and Mortality After Convexity Subarachnoid Hemorrhage in Cerebral Amyloid Angiopathy.
    Author: Calviere L, Viguier A, Patsoura S, Rousseau V, Albucher JF, Planton M, Pariente J, Cognard C, Olivot JM, Bonneville F, Raposo N.
    Journal: Stroke; 2019 Sep; 50(9):2562-2564. PubMed ID: 31337297.
    Abstract:
    Background and Purpose- Convexity subarachnoid hemorrhage (cSAH) is an increasingly recognized presentation of cerebral amyloid angiopathy (CAA), usually revealed by transient symptoms, but data on its outcome are limited. We compared the risk of future intracerebral hemorrhage (ICH), cSAH, and death in patients with CAA after cSAH and after lobar ICH. Methods- Consecutive patients with probable CAA, based on the Boston criteria, presenting with cSAH (CAA-cSAH) or lobar ICH (CAA-ICH) were included. We obtained baseline clinical and magnetic resonance imaging data and follow-up information. Univariable and multivariable analyses were used to compare incidence rate for symptomatic ICH, symptomatic cSAH, and late-death (beyond 30 days) between patients with CAA-cSAH and CAA-ICH. Results- Among 105 patients (mean age, 76.7±7.5 years) enrolled, 44 participants presented with CAA-cSAH and 61 with CAA-ICH. The median follow-up was 22.2 months (interquartile range, 12.6-34.4). The symptomatic ICH rate (per person-year) was 10.5% (95% CI, 5.6-19.4) in patients with CAA-cSAH compared with 8.5% (95% CI, 4.4-16.4) in those with CAA-ICH (adjusted hazard ratio, 1.05; 95% CI, 0.32-3.43). The annual incidence rates of symptomatic cSAH (9.9% versus 3.8%; adjusted hazard ratio, 1.77; 95% CI, 0.43-7.28) and death (9.5% versus 17.8%; adjusted hazard ratio, 0.56; 95% CI, 0.22-1.43) were not significantly different between patients with CAA-cSAH and those with CAA-ICH. Conclusions- Patients with CAA-related cSAH have a poor outcome, with similar high risk of future ICH and long-term mortality than CAA patients after lobar ICH. Our findings may have important prognostic implication and guide management of patients with cSAH in CAA.
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