Thanks for writing in.
I am a qualified and certified cardiologist. I read your mail with diligence. One thing is certain that this defect needs closure. There is no difference in operative risk of surgical closure one one hand and risk of device closure. But if it is technically not possible to place the device probably, it leads to complications. So, I would go with surgical closure if echocardiographer is competent. You can seek a second opinion
. Excessive sweating
since birth may not be related to ASD per se; unless it is associated with inability to feed the baby properly and child does not thrive
(mile stones are delayed and weight is low for the age as per your pediatrician
). Then these become signs of failure. Well then also treatment remains close the defect. Good Luck.
Dr Anil Grover