I have just had some thoughts after reading this article:
Swedish snuff is a form of tobacco that is not inhaled but licked by placing it under the tongue. It contains nicotine. It has been found that, unlike smoking, it does not increase the risk of MS.
Under the lights of Zamboni's research and hypoxia induced damage, I was thinking that smoke damages the lungs, which makes respiration less effective over time. In addition, while smoking, the amount of circulating oxygen is decreased because the amount of inhaled oxygen is decreased, as well, and blood absorbs carbon monoxide better than it does for oxygen.
Could that increase the damage induced by hypoxia to a person manifesting CCSVI? Not to mention the hardening of the vessels, which is another discussion...
Let me think of it differently. Could inhaling high pressure oxygen from time to time (let's say thrice a day) improve oxygenation of the CNS?
Thank you for your thoughts.
PS: My fluency in English is not enough for me to write medical terms. I apologize in advance...