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Related Experiment Videos

Intracranial aneurysms.

C G Drake

    Acta Neurologica Latinoamericana
    |January 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Intracranial aneurysms are a significant cause of stroke, with surgical management evolving over the last 25 years. Optimal timing and techniques are crucial for improving outcomes in aneurysm treatment.

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    Area of Science:

    • Neurosurgery
    • Vascular Neurology
    • Interventional Neuroradiology

    Background:

    • Intracranial aneurysms are found in 5% of autopsies and account for 70% of subarachnoid hemorrhages (SAH), a major cause of stroke.
    • Aneurysm rupture has a high morbidity and mortality rate (43% from the first hemorrhage if untreated), necessitating effective management strategies.
    • The management of intracranial aneurysms has seen significant advancements in the last quarter-century, focusing on improving surgical safety and outcomes.

    Purpose of the Study:

    • To review the modern history and evolving management strategies for intracranial aneurysms.
    • To analyze the outcomes of various surgical interventions for different types and sizes of aneurysms.
    • To highlight the importance of surgical adjuncts and novel techniques in aneurysm treatment.

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    Main Methods:

    • Review of historical data and surgical outcomes for intracranial aneurysms.
    • Classification of aneurysms by size (small, large, giant) and location (anterior/posterior circulation).
    • Description of surgical techniques including ligation, neck occlusion, wrapping, coating, STA-MCA bypass, and percutaneous occlusion.

    Main Results:

    • Small vertebral-basilar aneurysms showed excellent results in 246 out of 326 cases.
    • Management of giant anterior circulation aneurysms yielded good outcomes in 52/63 cases, while posterior circulation giant aneurysms had a worse outcome in 48/91 cases.
    • Percutaneous occlusion of the basilar artery was used in 10 cases with 2 deaths; STA-MCA bypass was useful for giant middle cerebral aneurysms.

    Conclusions:

    • Surgical intervention for intracranial aneurysms aims to prevent rebleeding and improve patient outcomes.
    • Microsurgical techniques, brain-shrinking agents, and induced hypotension are valuable adjuncts in aneurysm surgery.
    • Emerging techniques like percutaneous occlusion and bypass offer alternative treatment options for complex aneurysms.