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De novo aneurysms: special multiple intracranial aneurysms
1Department of Neurosurgery, University Hospital of Kuopio, Finland.
Neurosurgery
|December 1, 1993
Summary
Few patients develop new intracranial aneurysms after subarachnoid hemorrhage treatment. True de novo aneurysms require excluding other causes. Young patients may benefit from long-term neuroradiological follow-up for early detection.
Area of Science:
- Neurology
- Neurosurgery
- Radiology
Background:
- Subarachnoid hemorrhage (SAH) survivors face risks of new intracranial aneurysms.
- Distinguishing true de novo aneurysms from other vascular changes is crucial for accurate diagnosis.
Purpose of the Study:
- To investigate the incidence and characteristics of de novo intracranial aneurysms after SAH.
- To evaluate the potential benefit of long-term neuroradiological follow-up in young SAH patients.
Main Methods:
- Literature review of de novo aneurysm cases.
- Analysis of 13 additional patient cases.
- Calculation of de novo aneurysm formation and rupture incidence.
Main Results:
- Twenty-nine de novo aneurysm cases were identified in the literature, with 13 new cases presented.
- The incidence of de novo aneurysm formation and rupture is 63 per 100,000 person-years in SAH patients.
- True de novo aneurysms are rare but require careful exclusion of other conditions.
Conclusions:
- De novo intracranial aneurysms are uncommon but significant findings in SAH survivors.
- Long-term neuroradiological surveillance may be beneficial for younger patients post-SAH.
- Accurate identification of de novo aneurysms is essential for appropriate patient management.