i am 86 years old i have heart failur ,stable angina,then M.I ,recentely before 10 dayes angioplasty done to me and 2 stents putted in my coronary artery.my Echo is mild concentric LVH,fair LV systolic function EF 50% ,mild apical wall,moderate AR,Trivial MR,other valves normal ,reversed E/A ratio.also i have hypertention the Q is i was on vastarel befor the stents can i use it now after the stents putting? with thanks.