Carotid stump syndrome: pathophysiology and endovascular treatment options
Raghuram Lakshminarayan1, Paul M Scott, Graham J Robinson
1Department of Radiology, Hull Royal Infirmary, Hull, East Yorkshire HU3 2JZ, UK.
Insights
Carotid stump syndrome causes recurrent strokes after internal carotid artery occlusion. Microemboli from the carotid stump travel through anastomotic channels to the brain, leading to events.
Area of Science:
- Neurology
- Vascular Surgery
Background:
- Carotid stump syndrome is a recognized cause of recurrent cerebrovascular events.
- It occurs after internal carotid artery occlusion.
Observation:
- Microemboli may arise from the occluded internal carotid artery stump or the ipsilateral external carotid artery.
- These emboli can reach the middle cerebral artery circulation.
Findings:
- Patent external carotid-internal carotid anastomotic channels facilitate emboli transport.
- The syndrome involves specific pathophysiologic mechanisms.
Implications:
- Understanding these mechanisms is crucial for managing recurrent stroke.
- Endovascular treatment options are available for carotid stump syndrome.
Abstract:
Carotid stump syndrome is one of the recognised causes of recurrent ipsilateral cerebrovascular events after occlusion of the internal carotid artery. It is believed that microemboli arising from the stump of the occluded internal carotid artery or the ipsilateral external carotid artery can pass into the middle cerebral artery circulation as a result of patent external carotid-internal carotid anastomotic channels. Different pathophysiologic causes of this syndrome and endovascular options for treatment are discussed.
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