MHV (mitral valve) is in my son, he got diagnosed with CAVSD, on anticoagulant every day and has had 3 major surgeries at 5-6 months of age. Now he is 16 months old, doing beautifully, developing nicely, his doses of anticoagulant is settled and he is tested in every 4 wks for INR, ECHO and ECG. He has 2 paravalvular leaks, both minimal that cause no problems. He was born at 42 wks, 3840g, 51cm, natural birth with no complications. All previous scans show no abnormality in his heart. I took no drugs, had no viral or any other infection at gestational 4-6 wks when the heart forming, noone in our families have any heart deficiency. I didn t work near any radiation and noone could tell me how come I have a healthy looking son with such chronic illness without any syndrome, any other health problems. Do you know how could this happen?