shye wrote:That 47% figure was arrived at after the 18 months. What we don't know is how many more of those in that study relapsed AFTER that 18 months.
So the relapse rate could be higher.
Exactly. If you look at the chart published in the Zamboni paper, the curve is basically going down at a fairly constant rate. If you project that failure rate forwards in time, I'm guessing that all balloon procedures would close back up by 3 years post procedure. It doesn't seem to be a permanent solution.
This failure rate was for the internal jugular veins; the balloon procedure for the azygous vein had much, much better long term results. About 90% stayed open at the end of the 18 month reporting period.
I tried to extract the graph from the .pdf but wasn't able to copy it.
I know that if I had been given the choice, I would have opted for stents.
I don't know if my IR is willing to repeat the procedure again and implant stents. Personally, I am willing to take the low risk (1% or 2% ?) of stents versus the 100% certainty that my SP MS will completely disable me some day.
Also, now I am facing paying for the same $$$$ procedure all over again.
Stents are our friends.