When my stomach (GERD) is under control I rarely get PVCs and the SVT episodes are infrequent and very short. When my gut is bad, it's a nightmare.
Absolutely! I can even eat too much or something that doesn't agree with me and there I go with PVC's and sometimes A fib. I think I also have esophageal spasm. Mine are usually short lived and don't require me to do much other than chill out for a while. I take beta blockers to control my HR and asprin. I take dexilant for my reflux. Back to your question. There is no doubt in my mind the two are related and controling one will help with the other.
Yes, I do notice that digestive issues (esophageal spasm, especially) can aggravate my SVT and bring on more ectopics. Control of the reflux is important, though it might not bring as much relief from an arrhythmia standpoint as you're hoping for.