... diagnosed with a very large 20mm FOSSA OVALIS SEPTAL DEFECT WITH LEFT TO RIGHT SHUNT,RA AND RV dilated deficient margins.with mild hyperkinetic pulmonary artery hyper tension and the doctor has advised for an elective surgic closure.Her mother died after two days of delivery due to CHD,left to right shunt breathing problem and all.My kid's mothers family has a long history of cardiac problems almost for three generations.Since she is the only kid for me i am afraid,tensed and a huge lot worried about my kids open heart surgery,can you please tell me if this surgery is gonna be complicated,dangerous?will i get my kid back in a very healthy condition??/please somebody respond soon.she is just one year old.Joe