Rocker Jason Rullo was hospitalised earlier this month (Feb13) after suffering heart failure.
The Symphony X drummer spent a week under doctors' care and is now facing an extensive recovery period.
A statement from the band reads, "Jason Rullo was admitted to the hospital for heart failure. Jason spent a week in the hospital... he has started a rehab program, and has been told that his recovery will take a minimum of 3-6 months under doctors' care. We are all hopeful that J will be back soon!"
Rullo, 40, adds, "I would just like to say that I am happy to be home with my family after what was quite a week. We had a few scary days in there, but I made it through what was hopefully the worst of it.
"Doctors say I have a very good chance for a full recovery, so I plan to be back at 100 per cent, even if it takes a while. I will go through cardiac rehab so I can be monitored while returning to form, so that I'll know when it's safe for me to return to drumming the way I always have, if not better.
"Thanks to my friends and family for the support, and to the fans, I love you all!"