Hello and thanks for the query
I am little confused with your comments. CAG reveals significant Triple vessel Disease
which indicates that their is block in all the three main vessels. Later you have explained only single block in RCA.
1. If their is triple vessel disease again than the best option is surgery instead of going again for PTCA
to all the three vessels.
2. If their is only single significant block in RCA than PTCA is the best option.
I can give you the better idea if you can scan the report of latest angiography
and send it to me using premium service of Health care magic.