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Dysarthria during basilar artery balloon occlusion
A Hartmann1, E S Conolly, D H Duong
1The Neurological Institute, Columbia-Presbyterian Medical Center, New York, NY 10032, USA.
Neurology
|August 3, 1999
Summary
Balloon test occlusion for basilar artery aneurysms may overestimate risks. Isolated dysarthria can indicate temporary basilar artery occlusion, suggesting caution with this diagnostic method.
Area of Science:
- Neurology
- Neurosurgery
- Vascular Neurology
Background:
- Basilar artery aneurysms pose significant risks.
- Surgical intervention for basilar artery aneurysms requires careful pre-operative assessment.
- Balloon test occlusion is a common method to evaluate collateral circulation and predict tolerance to parent artery occlusion.
Observation:
- A patient with a distal basilar artery aneurysm experienced recurrent, reversible brainstem symptoms.
- During balloon test occlusion, the patient developed transient, isolated dysarthria.
- Despite the test occlusion result, the patient proceeded to surgical clipping.
Findings:
- The development of isolated dysarthria during balloon inflation suggests it can be a sign of temporary basilar artery occlusion.
- The patient tolerated surgical clipping of the basilar artery aneurysm without complications, despite failing the balloon test.
Implications:
- Balloon test occlusion might overestimate the risk associated with basilar artery clipping.
- Clinicians should consider the potential for reversible neurological deficits like dysarthria during test occlusions.
- Further research is needed to refine the interpretation of balloon test occlusion in the context of basilar artery aneurysms.