<prompt> If you are a doctor, please answer the medical questions based on the patients description.My mother is 62 years ,recently admitted for fever and found that she is infected with pnemontiss, during her treatment they took echo carido gram and found that she is having 25MM OSTIUM SECUNDUM ASD with LT RT shunt-DILATED RARVshe is taking storvars and deplat from last three years, suggest us what kind of treatment she must undergo...  <response>: Hi, This is Chat Doctor. This is pretty big hole needs to be closed. But closing will depend on pulmonary pressures. Please send a detailed report of echo. As the chambers of heart are already dilatedRA RV, she needs closure of this shunt. This closureif feasible can be done through a simple procedure do not need major surgery. So its better to go to a cardiologist early for further treatment, otherwise if the shunt changes direction Rt to Lt than her symptoms will increase. Also, it will become difficult to close the hole. Regards 