@eddiestella1 I have often wondered about allergy to the metal. They wanted to put an umbrella closure on the hole in my heart. I scar internally very badly. I said what happens when my skin grows over the device and then my scar tissue attacks it! What happens when the scar tissue gets to heavy and you have to remove the device with pieces of my heart. The surgeon I was talking to virtually said even if I wanted to have it done in the future he would not do it. Is it better to be honest about what you know about your body?? Absolutely. I've had that hole for 68 years. I'd rather die from natural causes caused by it then to have it dug out of me. And, when I asked if anyone with CLL had had the procedure so I could talk to them, I could not get an answer from anyone. ANYONE!!