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- Title
Incidence and case fatality of aneurysmal subarachnoid hemorrhage admitted to hospital between 2008 and 2014 in Norway.
- Authors
Øie, Lise R.; Solheim, Ole; Majewska, Paulina; Nordseth, Trond; Müller, Tomm B.; Carlsen, Sven M.; Jensberg, Heidi; Salvesen, Øyvind; Gulati, Sasha
- Abstract
Background: To provide age- and sex-specific incidence and case fatality rates for non-traumatic aneurysmal subarachnoid hemorrhage (aSAH) in Norway. We also studied time trends in incidence and case fatality, as well as predictors of death following aSAH. Methods: A nationwide study using discharge data for patients admitted with aSAH between 2008 and 2014. Results: A total of 1732 patients with aSAH were included. The mean age was 60 years (SD 14) and 63% were females. Crude annual incidence was 5.7 per 100,000 person-years (95% CI 5.4–6.0) and was higher in females (6.3 per 100,000, 95% CI 5.9–6.7) compared with males (4.9 per 100,000, 95% CI 4.5–5.3). The annual decline in aSAH incidence was 3.2% per year (p = 0.007). The cumulative proportions of fatalities at days 30, 90, and 1 year were 22%, 25%, and 37%, respectively. The 30-day mortality rate did not change during the study period. Age (HR 0.7–2.2) and aneurysms in the posterior circulation (HR 1.7, 95% CI 1.3–2.3, p = 0.001) were associated with higher 30-day case fatality following aSAH, while aneurysm repair (HR 0.2, 95% CI 0.2–0.3, p < 0.001) was associated with lower risk. Conclusions: The incidence of aSAH declined in Norway between 2008 and 2014. Case fatality following aSAH continues to be high, and the 30-day mortality during the study period was unchanged. Increasing age and aneurysms in the posterior circulation were associated with increased risk of death within 30 days following aSAH.
- Subjects
NORWAY; SUBARACHNOID hemorrhage; ANEURYSMS; HOSPITAL admission &; discharge; HOSPITALS
- Publication
Acta Neurochirurgica, 2020, Vol 162, Issue 9, p2251
- ISSN
0001-6268
- Publication type
Article
- DOI
10.1007/s00701-020-04463-x