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Aneurysms and arteriovenous malformations

K M Cockroft¹, R C Thompson, G K Steinberg

¹Department of Neurosurgery, Stanford University School of Medicine, California, USA.

Neurosurgery Clinics of North America

|July 21, 1998

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Arteriovenous malformation (AVM)-associated aneurysms require careful management. Prioritizing treatment of the aneurysm, or treating both simultaneously, is recommended due to its higher risk compared to AVM hemorrhage.

Area of Science:

Cerebrovascular diseases
Neurosurgery
Vascular neurology

Background:

Arteriovenous malformations (AVMs) and associated aneurysms are recognized cerebrovascular conditions.
Hemodynamic stress is a significant factor in the development of these dual lesions.

Purpose of the Study:

To evaluate the optimal treatment strategy for patients with AVM-associated aneurysms.
To compare the risks associated with aneurysm rupture versus AVM hemorrhage.

Main Methods:

Review of clinical data for patients with AVM-associated aneurysms.
Analysis of morbidity and mortality rates associated with AVM and aneurysm rupture.
Clinical recommendation based on observed outcomes.

Main Results:

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Aneurysm rupture carries a higher morbidity and mortality risk than AVM hemorrhage.
In most cases presenting with hemorrhage, the aneurysm is the source.

Conclusions:

Treatment of the aneurysm first or simultaneously with the AVM is recommended for most patients.
Prioritizing AVM treatment is reserved for cases with bleeds from resectable AVMs.