HappyPoet wrote:Yes, this would be a good one for Dr. Sclafani!
My guess about the catheter is that the valves are made of flexible tissue.
Balloon venoplasty "smushes" the tissue of the valves into the intima (inner most layer of vein/artery) of the vein wall; hopefully, the valve won't restenose by poping back out and blocking blood flow again.
Another little-discussed consideration regarding valves is what anecdotally happened with Rici and a couple of others. Because Rici had inverted valves in his both his IJVs, the valves were venoplastied which opened the veins for blood flow.
But the lack of the "check valve" allows pressure and blood in the vena cava and right jugular to reflux up the jugular, into the brain, through the dural sinuses, and into the deeper cerebral veins which damages the veins themselves and damages the delicate brain tissue which surrounds those veins. Such reflux cannot happen with the left jugular, though, because of its direct, quick route straight to the heart:
Dr. Schelling MS manuscript, Ch. 5
This reflux in the right IJV can happen in Valsalva maneuvers, such as when coughing, sneezing, and lifting heavy items. With Rici, though, it happens with every expiration of breath due to a large, widely distended section in the middle of his right jugular that creates enough suction/negative pressure for the blood to be sucked up his jugular and into his brain: Rici's reflux video
One time, the refluxed blood flowed to his hypothalmus which caused his temperature to rise to 104 degrees Fahrenheit. He was rushed to the emergency department of a local hospital, and his life was saved.
An informed decision is the best decision. Because I am "out of wait," I took a chance and decided that I had lived with 95% blocked veins, due to inverted valves, for my first 50 years, and I wanted to try open veins for my last 20 years. I am hoping that my right jugular vein does not distend and that the valve does not "pop out."
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