I have CAD diagnosed 11 years ago. I had cardiac cath ea month for 5 mos. with stents and angioplasty , finally Bipss . 6 mos later heart attack more stents. with a total of 5 stents. I went several years with no stents, but Angina. on Dec.9 I was sent from my cardiologist off ice to the hospital and LAD was 98% blocked. that was #24 cath. They placed a stent within stent. 7 days later I experience severe chest pain and saw MD again with more changes in EKG. My Cardiologist called 911. #25 cath showed the new stent blocked. they put a new stent distal to the other one. 15 days later with more changes in EKG and increased pain Cardiologist sent me again with another cath #26 with intentions of Bipass if blocked, that would end in Bipass. the artery is open. I continue with daily nitro and chest pains could that atery block again and what is the solution