Abstract
The introduction of the medical entity termed CCSVI, an appealing abbreviation for the narrowing of the jugular vein, and its suggested relationship to multiple sclerosis (MS) has caused many controversies among interventional radiologists worldwide. CVIR has produced an early and balanced statement pointing out the lack of evidence, along with a warning not to start the treatment of balloon dilatation of the jugular vein [1]. Others have been less cautious, focusing instead more on the perceived opportunities of this new technique. Now that two major studies [2, 3] have shown that CCSVI does not exist—not in MS and not in any other group, such as siblings of MS patients and healthy volunteers—it is perhaps time to draw some conclusions regarding the introduction of future new and socalled promising interventional procedures.
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