recent prostrate removal surgery, arrithmia(sp) & tachycardia while awakening from anisthesia: echo cardio- gram & another thru the throat to ck the rear of the heart for clots; negative for clots then cardioversion deemed successful; new resting heart rate higher now but was told is my new normal & heart rhythm more like normal; history of 3 heart attacks mid, late 90 s, 7 bypass surgery Jan 2000; new meds= digoxin, metoporol succinate, rivaroxaban, (lisinopril, atorvastatin metformin, & baby aspirin been taking for sometime) today is 1 week home: new symptom is swollen left foot & ankle. Should I be concerned? Thank you, Bart