<s>[INST] during a heart ablation my heart was punctured. I also have a hole between the two upper chambers. Did the puncture spread open the heart muscle a little, or does it close back up? How can a doctor accidently puncture the heart? I suffered temporary peralysis for about a month afterwards.did it bleed? [/INST] Your body has systems design to close the type of hole that occurs during an ablation. An ablation is done by touching part of the heart with a catheter. The catheter produces local changes that kill the tissue. Parts of the heart are very thin, sometimes only a few millimeters. Therefore, a puncture is one of the complications that sometimes occurs and is not always avoidable. Once closed, it will heal. The pre-existing hole is unrelated to the one created by the catheter and was not likely changed but only your doctor who performed the procedure can answer accurately. </s>