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Related Experiment Videos

Resolving siphon stenosis following endarterectomy

A L Day, A L Rhoton, R G Quisling

    Stroke
    |May 1, 1980
    PubMed
    Summary

    Tandem carotid lesions increase surgical risks. In select cases, endarterectomy may resolve intracranial stenosis, potentially avoiding bypass surgery.

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    Area of Science:

    • Vascular Surgery
    • Cerebrovascular Disease
    • Interventional Neurology

    Background:

    • Tandem arteriosclerotic lesions in the carotid sinus and siphon pose surgical challenges.
    • Severe carotid siphon stenosis often suggests microvascular bypass as a primary treatment.
    • Carotid endarterectomy is a common procedure for carotid artery disease.

    Observation:

    • Two patients with tandem carotid sinus and severe siphon stenosis underwent carotid endarterectomy.
    • Postoperative arteriography revealed resolution of the siphon stenosis in both cases.
    • Embolism is a potential cause of intracranial obstruction in cases with extracranial lesions or distal siphon lesions.

    Findings:

    • Carotid endarterectomy successfully resolved severe siphon stenosis in patients with tandem lesions.
    • A delayed arteriogram after endarterectomy may demonstrate resolution of intracranial stenosis.
    • This approach can potentially prevent unnecessary microvascular bypass procedures.

    Implications:

    • Identifying extracranial lesions or distal siphon lesions should prompt consideration of embolic causes.
    • Repeat arteriography after endarterectomy can reveal spontaneous resolution of intracranial lesions.
    • This strategy may help avoid invasive bypass surgery in select patients with tandem carotid lesions.

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