Q: Hello My mother 71 years old had by pass surgery CABG In oct 2014. Now after doing chest x ray she is diagnosed with heart enlargement problem She has cough problem and diagnosed with bronchitis also Is that mean her bypass surgery failed or what else it mean What to do now? After by pass surgery on march 2015 eco was done and LVEF was 50% and after one year NOV 2015 was 35%.i talked to the caisc surgeon he said its ok. Not to worry I am really concerned now. Now after six months thats on july 2016 she feeling more weak Please suggest what to do?