My son is 11 years old. From few day he was feeling fast breathing on exertion. Doctor prescribed ECHO. ECHO result is as under:- Situs Solitus, Levocardia, normal pulmonary systemic/ venous connection, AV and VA Concordance, Normally related great arteries, No ASD/PDA, Intact IVS, Chambers normal, MRI, No AR, Normal Aortic Arch, No effusion