hi yeni,
very sorry for your lost, please take care and be strong
if it's a heart problem, the pd should have alerted from beginning, as they will do thorough check up on the baby, how could they miss out such an important details? somemore they did notice that the baby was having a difficulty in breathing, how would they decide to do a small operation without briefing the parents about the risk?
i think you really should chase the doctor for an explanation because he owes you one!
it's also very weird if the hospital staffs have treated you differently just because you're not a singaporean, they should treat people equally regarding race, nationality, financial status, btw, one of my hubby's coll's baby also passed away during delivery at kkh, they're not a singaporean also...