ArticleStroke (Hoboken, N.J.)2022
Size at Which Aneurysms Rupture: A Hospital-Based Retrospective Cohort From 3 Decades.
Article in Stroke (Hoboken, N.J.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Article
- Changes in treatment of intracranial aneurysms during the last decade in a large European neurovascular center.Acta neurochirurgica · 2024Observational
- Stability of infundibular dilatations: a single center follow-up study and systematic review of the literature.Acta neurochirurgica · 2024Article
- The clinical course and outcomes of non-aneurysmal subarachnoid hemorrhages in a single-center retrospective study.Acta neurochirurgica · 2023Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: The size of the saccular intracranial aneurysm (IA) has been used as the primary indicator for rupture risk. We investigated at which size IAs that rupture did so, and whether this size has significantly changed over time. Methods: Patients treated for ruptured IAs were identified from the Aneurysm Database of the Tampere University Hospital. The size of the IA at the time of rupture was measured from computed tomographic angiography or digital subtraction angiography made to diagnose the aneurysm. Data for the clinical risk factors for rupture were collected from the patient's medical records. Results: Of the 2545 patients with ruptured intracranial aneurysms (IAs) admitted, the size of the ruptured IA could be determined for 76% (1925 of 2545). Fifty-one percent (984 of 1925) of the studied IAs ruptured at a size <7 mm. Both the mean and the median size of the IA at rupture had a downward trend from 1989 to 1997 (median decrease from 10 mm to 6 mm) but have remained relatively constant since. Forty-six percent (881 of 1925) of the patients with a ruptured IA were not known to have any lifestyle-related aneurysmal subarachnoid hemorrhage risk factor. Of the IAs that ruptured small, 35% were located in the anterior communicating artery and 14% in other small intracranial arteries. Conclusion: Small size should not be used to exclude unruptured IAs from prophylactic treatment. The observation that the size at which IAs rupture has previously decreased, suggesting a change in relative importance of risk factors or characteristics of a contemporary patient population compared with older cohorts.
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