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Spinal cord arteriovenous malformations associated with spinal aneurysms.
Neurosurgery
|November 1, 1983
Summary
Spinal aneurysms associated with spinal arteriovenous malformations (AVMs) may resolve after AVM embolization, indicating hemodynamic stress is a key factor. This association increases hemorrhage risk.
Area of Science:
- Neurology
- Vascular Surgery
- Interventional Radiology
Background:
- Spinal cord arteriovenous malformations (AVMs) are complex vascular lesions.
- Spinal aneurysms are rare vascular abnormalities that can occur independently or in association with other vascular pathologies.
Observation:
- Two patients presented with coexisting spinal cord AVMs and aneurysms on their primary feeding arteries.
- Angiographic follow-up after embolization of the spinal cord AVMs revealed the disappearance of the associated aneurysms.
Findings:
- The resolution of spinal aneurysms post-AVM embolization strongly suggests that altered hemodynamics play a critical role in their formation.
- Hemodynamic stress, likely exacerbated by the AVM, is implicated as the primary driver for aneurysm development in this context.
Implications:
- Understanding the hemodynamic link between spinal AVMs and aneurysms is crucial for risk stratification and management.
- The findings highlight the importance of considering and potentially treating associated aneurysms in patients with spinal cord AVMs to mitigate hemorrhage risk.