A buddy of ours had a serious heart condition that required a valve replacement AND a pacemaker to be put in. He's an airline pilot, so he HAD to be able to get a first class medical to keep working. There were airline guys out there with replaced valves, and guys with pacemakers, but our friend ended up being the first ever to get a first class medical back with BOTH a pacemaker and a replaced valve! It took about a year total time from first finding out about the condition, and fixing it, until he got his medical back and returned to work. I am still so happily shocked that he's able to still work!