@dianemari
I have both ICD and pacemaker device with leads for both. You posted you have a ICD only.

What came out of my heart was the lead to LV for pacing my heart. EP could not get in exactly where he wanted.

I am not a medical professional and no where close to the expertise of a EP surgeon. I learned from my DP there are different ways leads are put in. Some are static and some are screw in. The static (sit in vein not screwed in) ones can move around from activity. The screw in ones usually are much more capable of staying in place.

Ask your EP which type you have? Then asked about playing tennis with your hands and arms way above your head and drastic quick movements down. See if he/she thinks that is a problem for your specific surgery and leads.

I started playing tennis again and my next visit to pace clinic lead to LV was out. The pace clinic nurse said they see this all the time with tennnis and fishing they exaggerated movements of arms (jerking).

Again you may have got the screw in type and your leads if you have ICD ony have leads going into Atrials. My leads to my Atrials were screw in and they did not come out during tennis.

Asked your EP to explain what you got and make sure they know you are an avid tennis player like I was. If they are not tennis players they may not know how high and how hard you use your arms above your head espceially when serving.

I think you can see that I am still a tennis enthusiast. I played tennis for 50 years and loved the sport. It was then like you my main exercise and I did it because I loved the sport.