Thank you very much. I will tell your suggestion to my friend's family.
The forum that you posted on is a patient forum, but there is also an Expert forum on this same site. Questions on the Expert forum are answered by doctors from the Cleveland Clinic. Look at the toolbar across the top of this page and click on Expert. Cleveland Clinic is one of the premier medical centers in the world, and many patients travel to Cleveland from overseas to be treated. I believe it is possible to have the Cleveland Clinic's doctors do an evaluation by looking at the person's records. I think that sending your friends records to an overseas doctor is what will need to be done first.
In addition to the Cleveland Clinic, I can recommend consulting my own surgeon in Houston Texas, Dr. Joseph Coselli, and also a surgeon on the west coast of the US, Dr. Sharo Raissi of Los Angeles CA. I believe both of them would also do a record review. I'm sure there are other surgeons in the US who would look at your friend's records, but Dr. Coselli operated on me, and I have consulted Dr. Raissi, so I myself am acquainted with both of them, and both of them are excellent surgeons who routinely operate on dangerous aneurysms.
If there is a doctor who is willing to perform the operation, there are still many obstacles. Your friend will need to be able to get a travel visa, he will need to be able to afford the costs of the trip, and he will need to be medically fit enough to travel on a long, difficult journey. But, as they say, a journey starts with a single step. I think the first step in this case is to get a record review done by a surgeon who would be a candidate to treat your friend.
Thank you very much for kindness and comment. Local doctors suggested a few of hospitals in other cities. However, feedback information let my friend's family hesitate due to the quite low possibility of successful operation. So I hope to find experienced international doctors to give us some suggestions.
I'm sorry for the situation. I would suggest asking the local doctors where is the nearest surgeon who might be able to perform this operation. Of course, a lot is going to depend on whether your friend's health is stable enough for him to travel. That would be another question. I wish him the best. You are kind to try to help him.