@jlk53
VT, Ventricular Tachycardia. I have them on and off for decades. I have a ICD/Pacemaker that will try to pace me out of the VT and if does not work shock me. Does it work. Well had the ICD/Pacemaker since 2006 and dozens of VT episodes and still here.

What you are asking and what I asked of my cardiologist and EP is preventing. I take a medication called mexiletine for VT. It is not very toxic and does not stay in body long so you have to take every 8 hours. It also helps with PVCs. Cut my PVCs in half and really cut down the episodes of VT.

I have had only one VT in last year where pacemaker paced me out of it. I know exactly when, how long, as all is saved to my ICD/Pacemaker and sent to Mayo Pace Clinic and my EP.

I also take (per my EP) OTC magnesium. It is help with PVCs but I think helping them helps with the VT. I did have an ablation many years ago in RV for PVCs and stopped them. But PVCs and VT are very different and VT a lot more serious health concern.

How is your weight, stress level, caffeine, anxiety. All can create more PVCs and thus more chances of VT with irregular heart beats.

Are you being treated by a cardiologist? If so and you are not already seeing a EP I would recommend a EP. They are electrical experts of the heart and specialize in diagnosing and treating them. Some great medications out there but lifestyle changed can also dramatically help with VT and PVCs and PACs.