mjmom,
Sorry it took so long for someone to respond. I did some resurch it looks like "pial synangiosis" is a type of MoyaMoya(MM). Typicaly the unilateral kind. It seem like it is a doctor word.  EDAS is a surgery that could be done for helping get blood flow back to a "normal" level in MM people. EDAS - indirect bypass -> arteries are laid on the surface of the brain and left to grow.

I would talk to you nuologest or Dr. Steinberg's team.
Here is his contact info:
http://med.stanford.edu/profiles/Gary_Steinberg/

Take care.
Becky

Hi,

I’m sorry for not responding sooner, but I just read this post today. I have no idea how I missed it, but I did.

Anyway, I think I know the difference. As I understand it they are both “indirect surgical approaches” that create a new blood supply. The difference between them is, with the pial synangiosis, they use a healthy blood vessel from the scalp and move it so it runs under a section of the skull and then it’s stitched to the surface of the brain. With this approach, it does not require severing the tiny artery and then reconnecting it to the brain, like with the EDAS surgical approach, they dissect a scalp artery and then make a small temporary opening in the skull directly beneath the artery. Then the artery is sutured to the surface of the brain and the bone replaced.

With both surgical techniques, the transplanted artery then grows a network of healthy new arteries to create a new blood supply to the brain. They are both the preferred surgical approach for children because of their tiny arteries. You should ask your surgeon as to why a particular technique is being recommended and what the surgical results have been with the particular technique.  

Dr. Scott, at Children’s Hospital in Boston, a pediatric MM specialist prefers the pial synangiosis and says this technique has a significant advantage in his research, especially children, but it may differ for each individual case.

I hope I explained it ok.

Mar

HELLO EVERYONE,,,,,,

I have a question:::: Has any one ever been told they have very slow flow in there Cardiod Artery ??
For those of you that know me,,,,,,I had my 1 st surgery on New Years Eve. 1998 &  2nd surgery in 2000 :-
I have an appointment on the 13th @ Shands with Dr. Lewis and will be having a CT Angiogram, then see the Dr.,,,,,, I have been  having dizzy spells again and can hear my heart beat in my ear when I lay on it.......


Elaine Calvert

I think there may be some misinformation in some of the older posts in this thread.  Specifically, EDAS (Encephaloduroarteriosynangiosis) doesn't involve severing the artery and reconnecting. [at least not in my experience and understanding]

Just want to point this out, as it might confuse someone who finds this in research.