New studies question vascular multiple sclerosis hypothesis and treatment

Two important new studies challenge the controversial hypothesis that venous congestion -- chronic cerebrospinal venous insufficiency (CCSVI) -- contributes to the development of multiple sclerosis (MS). This theory has resulted in many MS patients receiving experimental endovascular angioplasty, a treatment for MS unproven by clinical trials. The studies refuting the CCSVI theory with the first negative medical evidence on the subject, are available today in Annals of Neurology, a journal published by Wiley-Blackwell on behalf of the American Neurological Association.

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