Welcome to HCM,
Both of you have CAD (Coronary Artery
Disease). Let me explain Angioplasty
with placement of stent and Coronary artery Bypass surgery
both are treatment modalities for re vascularization of heart both are equally good in properly selected patients like Multi vessel disease it is better to advise CABG as laso case with LMCA lesion.
If single vessel is involved and lesion is proximal and concentric Angioplasty with stent is good option.
If she has angina
post procedure please visit your cardiologist there may be some other reason or blood flow may compromise due to re stenosis or thrombosis
Please take care