I was 29, with a child almost 2, when I had an arrhythmia that caused me to black out on Christmas eve. Already had a cardiologist, but he got me an electrophysiologist. They decided I had ventricular tachycardia and that I could experience sudden death if not treated. They decided against meds because some of them can cause depression, they knew I already was dealing with that, and there was no guaranty they would work. They inserted an ICD(implantable cardioverter defibrillator. It's like a pacemaker but larger. I've had it replaced once. Thankfully it has never shocked me. Told it came close, but it all depends on it's pace and how long it lasts.
I also have valves that leak. I'm told that everyone has a little leakage. My aortic and mitral are the worse ones. My other two now leak but it is only slight. I figure they felt left out of the leakage deal so they had to start up. I get them checked every year. I've heard only good things about getting those repaired, but, unfortunately, the AHA, believes you should wait until it is severe before they do anything. Bugs me because why wait until it does damage? Most people say they felt more energy after having that surgery. I could use the energy. I'm on beta blockers so that my heart doesn't work as hard.
In a couple months I have to have my icd replaced because the battery is nearing it's end. I've had to put a magnet over it to make sure it's still working and it makes a high pitch sound coming from my chest. I'm told, when the battery fails, it will send out a warning beep at 10:30 in the morning. My friends say I must be fun at parties and my children have become accustomed to their mother having a battery inside her. Yes, I've been related to some of their star wars characters.
I've heard your surgery is a very good one to have. My valves had had problems since I was a child, had heart surgery at 2, but it is so amazing what they can now do compared to how it use to be. I'm hoping that, by the time I do need valve surgery, that it will be even less invasive then it now is.
I know that feeling your heart race can be very discomforting. They pace mine once a year and I can not stand it.
I know you don't know me, but I wanted to share this with you so that, maybe, you'll find it to be reassuring that someone has gone through all of this and it worked out. I'm now 46 and things have been fairly good. Dealing with all of that and ptsd can be stressful. You sound like you have a great attitude. That's half the battle right there.
I wish you quick healing!