I think Simka has recommended a six month follow-up. Maybe in six months time there will be closer places than Poland that will do CCSVI treatment? Otherwise if he feels improvements and then feels worse again, that could mean re-stenosis, and yes, people have gone back to Poland in those circumstances. Best of luck!!
"However, the truth in science ultimately emerges, although sometimes it takes a very long time," Arthur Silverstein, Autoimmunity: A History of the Early Struggle for Recognition