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Related Experiment Videos

Rolandic arteriovenous malformations: improvement in limb function by IBC embolization.

A J Fox, J P Girvin, F Viñuela

    AJNR. American Journal of Neuroradiology
    |July 1, 1985
    PubMed
    Summary

    Awake operative embolization of brain arteriovenous malformations led to significant functional recovery in patients with limb deficits. This procedure even restored function in hands rendered useless by prior brain injury.

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    Hydrogel versus Bare Platinum Coils in Patients with Large or Recurrent Aneurysms Prone to Recurrence after Endovascular Treatment: A Randomized Controlled Trial.

    AJNR. American journal of neuroradiology·2017

    Area of Science:

    • Neurology
    • Neurosurgery
    • Vascular Malformations

    Background:

    • Arteriovenous malformations (AVMs) in the rolandic region can cause significant neurological deficits.
    • The "steal phenomenon" is a proposed mechanism for progressive neurological deficits in AVM patients.

    Observation:

    • Three patients with rolandic AVMs and severe limb deficits underwent awake operative embolization.
    • Two patients had deficits resulting from prior surgery or hemorrhage, with functionally useless hands.
    • One patient experienced progressive leg weakness over two years.

    Findings:

    • All three patients demonstrated substantial functional recovery after embolization with isobutyl-2 cyanoacrylate.
    • Significant return of hand function was observed during the procedure in patients with deficits from brain trauma.

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  • The study suggests the "steal phenomenon" theory may need expansion to include stable deficits post-brain trauma.

    • Implications:

    • Awake operative embolization is a viable treatment for neurological deficits caused by rolandic AVMs.
    • The findings challenge existing theories on AVM-related neurological deficits, particularly after acute brain injury.
    • Patients with AVMs near a threshold of "near ischemia" may be vulnerable to acute events, suggesting a need for proactive management.