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Descriptive epidemiology in relation to gender differences and treatment modalities 10 years after intracranial aneurysm rupture in the Stockholm cohort 1996-1999
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden; Red Cross University College, Stockholm, Sweden.
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.
Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden.
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.
2013 (English)In: World Neurosurgery, ISSN 1878-8750, E-ISSN 1878-8769, Vol. 80, no 3-4, 328-334 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: To describe epidemiology in relation to gender differences and treatment modalities 10 years after intracranial aneurysm rupture in the Stockholm cohort 1996-1999. METHODS: A total of 468 consecutive patients with aneurysmal subarachnoid hemorrhage were followed-up in a retrospective cohort design 10 years after rupture. Information on medical history, clinical variables, and treatments were obtained from patient records. Causes of death were obtained from patient records and The Swedish Cause of Death Register. Incidence of ruptured aneurysms per 100,000 people were calculated from male, female, and overall population data per year from 1996-1999. RESULTS: Ten years after aneurysm rupture 63.9% (n = 296) of patients were still alive. The overall 28-day case fatality was 19.4%; most often deaths were due to the initial hemorrhage. There were no significant differences in survival time between patients treated with clipping (8.4 years, 95% confidence interval 8.1-8.8), compared with endovascularly treated patients (8.2 years, 95% confidence interval 7.4-9.1) (log rank P = 0.550). The female incidence was higher than that of men, and women were significantly older at the onset of aneurysm rupture (55.7 vs. 52.8 years, P = 0.027). CONCLUSIONS: Ten years after rupture, most treated patients were still alive. The mortality was highest in the first month after rupture, due to the initial hemorrhage. Gender differences were apparent in incidence, but 10 years after the rupture mortality rates and survival times were equal between men and women. Survival time was equal between patients within active treatment modalities.

Place, publisher, year, edition, pages
2013. Vol. 80, no 3-4, 328-334 p.
Keyword [en]
Epidemiology; Gender; Intracranial aneurysm; Subarachnoid hemorrhage
National Category
Nursing
Research subject
Nursing Science
Identifiers
URN: urn:nbn:se:oru:diva-36301DOI: 10.1016/j.wneu.2012.06.041ISI: 000326653900057PubMedID: 22898030Scopus ID: 2-s2.0-84885185021OAI: oai:DiVA.org:oru-36301DiVA: diva2:746992
Available from: 2014-09-15 Created: 2014-09-02 Last updated: 2017-10-17Bibliographically approved

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