The pvcs and flutters, probably pacs, are not connected with the svt. they are a different issue though they do feed off each other. pvcs and pacs typically pop up from an irritated heart. An svt episode like avnrt means the heart is beating exceptionally fast. Normal resting heart rate is below 100bpm. My svt was caught at 230bpm. So it is very manic fast and as such the heart is a bit overworked. It is a muscle and when we push any muscle too hard it can get irritated. So that can be a trigger for pacs and pvcs. It is usually a well timed pac or pvcs or a pattern of them that causes us to fall into an svt like avnrt in the first place. Avnrt is an svt where the avnode has extra muscle fibers leading to it and if there is a great enough pause between beats the secondary path can turn into a reentry situation where the signal circles around the avnode causing the fast heart beat. So essentially the two condition feed off each other.
Pvcs and pacs or premature beats are very hard to treat so ideally the best bet is to try and avoid the big triggers. Besides for things that can overwork the heart, make sure you are well hydrated and do a proper warm up and cool down when exercising, premature beats can be caused by stomach issues, caffeine, sugars and carbs and stress. If you can avoid those possible triggers you may be able to lessen the amount of premature beats you are getting and subsequently lessen the amount of svt episodes you have. this said, the only way to cure yourself of the avnrt is to have it ablated. If it is a common occurrence and ablation may be the best bet. It will never go away and may very well get worse with age but it is helpful for it to be active if you do opt for an ablation because the EP does need to be able to trigger it so they know where to ablate. So if you are not active it may be a waste of a procedure but if you get it often enough then it may be worth a shot to try the ablation.
My premature beat activity has gone down tremendously since my ablation. I actually did not know I had one condition let alone two prior to getting diagnosed. I thought I was hyperventilating actually and I misunderstood my fluttering jumpy heart to be all related when it turned out I was having quite a lot of daily premature beat activity prior to my ablation. Because my heart was irritated it did take a while for the premature beats to settle down after the ablation but it has been 6 years and I have not had another svt episode so that I know is cured. I still get some premature beats but not like I was so consider an ablation if you are having a lot of premature beats or at least try and watch stomach issues and avoid caffeine and see if that helps. At some point though you may very well want to consider an ablation. Take care.
Are you seeing a cardiologist? If you are having recurrent episodes of the SVT, I would definitely ask for a referral to an EP. An ablation for SVT has a very good success rate, think 90% or better. If you choose to not go that route, possibly try a beta blocker, that should help with the SVT episodes and may help with the PVCs. Good luck, don't let it take over your life.