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Unilateral internal carotid arterial occlusion: special considerations
Stroke
|November 1, 1977
Summary
Patients with unilateral carotid occlusion and contralateral stenosis often have neurological deficits. Extracranial-intracranial bypass may benefit symptomatic patients, but is not recommended for asymptomatic cases.
Area of Science:
- Neurology
- Vascular Surgery
- Cerebrovascular Disease
Background:
- Unilateral internal carotid artery (ICA) occlusion with contralateral ICA stenosis presents a complex clinical scenario.
- Assessing neurological deficits and complications in these patients is crucial for treatment strategies.
Purpose of the Study:
- To review outcomes in patients with unilateral ICA occlusion and contralateral ICA stenosis.
- To evaluate the role of extracranial-intracranial bypass (ECIC) in managing these complex cerebrovascular conditions.
Main Methods:
- Retrospective review of patients with unilateral ICA occlusion and contralateral ICA stenosis.
- Analysis of neurological deficits, complications following carotid endarterectomy, and outcomes after intervention.
Main Results:
- 42% of patients presented with a fixed neurological deficit, predominantly on the side of occlusion (92%).
- 11% experienced neurological complications post-carotid endarterectomy, mainly related to the stenotic side (67%).
- No additional TIAs or strokes occurred during an average 19-month follow-up.
Conclusions:
- ECIC may be considered for the occluded side before endarterectomy on the stenotic side in cases of poor collateral circulation.
- ECIC is indicated for patients remaining symptomatic after endarterectomy on the stenotic side.
- ECIC is not supported for asymptomatic patients with unilateral carotid arterial occlusion.