Fresh doubts are being cast here in Canada, on the controversial multiple sclerosis theory by Italian vascular surgeon Paolo Zamboni.

Zamboni first hypothesized in 2009 that narrowed and twisted veins in the neck create a backup of blood in the brain, resulting in iron deposits that could cause the lesions typical of M-S.

But researchers at Hamilton’s McMaster University have found no evidence that blocked neck veins or impaired blood flow are connected with M-S. In fact, they offer compelling evidence that the Italian doctor’s theory is simply “wrong”.  The McMaster study adds to a growing body of recent research that has called into question the Zamboni theory known as liberation therapy.  There are still many supporters of Zamboni’s research.  One patient advocate says many MS sufferers have clearly benefited from the treatment.