Dear Doctors, My sister is 4 month pregnant and has cardiac disease (Supra Ventricular Techy Cardia). She is being treated conservatively due to high risk because of pregnancy. As per cardiologist, ablation [procedure to cure SVTC] can only be performed post-delivery. I want to know, is it correct that she is on high risk if ablation gets performed before delivery. Another question is, if she continue with conservative treatment [oral medicine] then how complicated her delivery would be due to this disease? Is there any risk to delivery?