Key result
Among 25 patients with subarachnoid hemorrhage from previously unruptured aneurysms, 11 died (44%), and 16 of 20 evaluated aneurysms were initially <5 mm, showing rupture risk of small aneurysms.
Why the study?
What are the clinical features and outcomes of previously diagnosed unruptured intracranial aneurysms that subsequently rupture?
Population
25 patients with subarachnoid hemorrhage caused by previously diagnosed, unruptured intracranial aneurysms
Design
Case_series
Authors
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Small aneurysms may rupture with high mortality; leaves open whether size thresholds warrant revised surveillance or intervention.
Observational (n=25)
No
What are the clinical features and outcomes of previously diagnosed unruptured intracranial aneurysms that subsequently rupture?
Small unruptured intracranial aneurysms (<5 mm) carry a risk of rupture and may warrant radical treatment or careful follow-up.
Yasui et al. (1996) conducted an observational in Subarachnoid hemorrhage caused by previously unruptured intracranial aneurysms (n=25). Conservative treatment of unruptured intracranial aneurysms was evaluated on Death. Among 25 patients with subarachnoid hemorrhage from previously unruptured aneurysms, 11 died (44%), and 16 of 20 evaluated aneurysms were initially <5 mm, showing rupture risk of small aneurysms.
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