Two more research groups said they couldn't confirm the idea that obstructed veins in the head and neck are responsible for multiple sclerosis.
The pair of studies, conducted in Europe with a total of more than 100 MS patients and 40 healthy controls, were presented here at the American Academy of Neurology's annual meeting. Both found no difference in the direction of venous blood flow or the presence of stenosis between patients and controls.
These were the latest attempts to replicate -- or refute -- an astonishing report in 2009 by Paolo Zamboni, MD, of the University of Ferrara in Italy, and colleagues, in which nearly every MS patient they studied showed stenosis and venous reflux with ultrasound exams. Healthy controls, on the other hand, almost never showed these abnormalities. ... Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/2944