hi Sou
I am curious. Can stenoses of the internal (deep) cerebral veins be corrected by surgery? I find them to bee very deep inside the brain to have access to them. Are the PP MSers doomed, once again?
I think,
but am not sure, that in theory correction is in the azygous vein and that relieves everything all the way up to the DCV's. I know the Vertebral vein is theoretically supposed to be helped that way. It is early for this material Dr Zamboni is presenting the data on his first set of patients treated with the liberation procedure on Monday at 11ish london time.
I do not know if he treated any PPMSers.
Honestly, the fact of the reflux is pretty well proven. he has large numbers and the doppler strips to show anyone interested enough to look on nearly 800 people. he has venograms on all the MSers too, that is also material anyone else can look at, they all had stenoses, or blockages, in the jugulars or azygous and sometimes associated veins as well. That too is something that anyone can see. It is not up for debate.
heck if they test you, they will either see these blockages or not. Period. It will not matter if thousands of MSers have it or only a handful, if you have it, you have it
assuming, that is, that the doctor you see interprets the dopplers the same way Zamboni does and feels like there is enough "abnormal" to do the actual venograms. Dr Anonymous who is doing a study even as we speak--and reproducing the Z results BTW-- says it is not easy to see the two abnormals, it is harder than it seemed like it would be to see everything that is going on with dopplers. There's a bit of an art to it. Venograms, OTOH, are more like an x-ray; a clear picture of a blockage or twist or whatever, but they have a bit of risk so they don't do them unless they have a reason to, hence the dopplers are first.
But even if you accept that the blockages are there, or even if you are tested and find them in yourself, here are 2 things NOT known:
First; Do these blockages have anything to do with the development of MS? We can suspect Yes based on the DAVF known facts; it, frankly, can't be good news to have these stenoses and reflux no matter what you think MS "is".
And secondly; if we relieve these stenoses will it relieve MS symptoms?? Will it stop progression? No one knows the answers to this yet.
This is where the research will need to go. Lots of people will need to have these venous systems assessed to see if they have these issues, then they will need to be treated to see if it helps.
Probably the answer to the question of whether surgery will relieve the pressure will be guessed at this way,
1. do the dopplers and assess the refux in the DCV's VV's etc.
2. Do the venograms and see where the actual blockages are.
3. Then do the endovascular surgery and repair the blockages.
4. Repeat the dopplers and see if the refux is gone. If it's gone, then we have proof that the surgery helped blockages. We'll know if the DCV's are no longer refluxing after repair of the azygous by dopplers before and after surgery Sou.
Then we wait......... and do MRI's. Do people progress? have relapses? do their MRI's look different over time?
And at the same time how are the dopplers looking? Have we relieved the stenosis permanently (this is not expected, veins tend to block up again, so if someone had a relapse they'd probably get a doppler right away to make sure of that angle too)
This part of it is going to take some years before we have anything definitive in large numbers to know about.