### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I HAD OPEN HEART SURGERY IN 2008. I HAD BEEN DOING GREAT, WALKING ABOUT 5 MILES A WEEK. ON 2-11 2008 I HAD CHEST PAINS HAD TO GO TO THE HOSPITAL. GET TO THE HOSPITAL I STARD DOING BETTER.  NURES TOOK ME UP STAIR TO CHECK ME OUT NOW THE LEAVES. THEY DREW BLOOD, XRAY, ELECTROARDIOGRPH, AND MANY MORE TESTES. ALL THE TIME I TOLD THE DOCTORS I WAS FEELING GREAT. THEY HAD MY TO TAKE THE STREES TEST I START THE WALK ON IT THEY REALAZE I WAS A WALKER SO THEY SPEED IT UP WERE BY I HAD TO RUN. SO AFTHER THAT TEST, WHICH I DID GREAT ON IT AS WELL, ON ALL THE TESTES. I WAS DOING GREAT NO HEART PROBLEMS, I HAD BEEN THERE FOR FOUR DAYS DOING GREAT EVERY DAY. SO ON THE LAST DAY THEY SAID THAT I NEED TO TAKE CATHETERIZATION I DID NOT WANT TO TAKE IT I TOLD THEM THAT.  SO THE WENT AN DONE THAT TESTS WHILE UP IN MY HEAR THEY SAW THAT IN HAD 2 STENS IN MY HEART, SO THEY STOP DOING THE TEST, TURN AROUND AND JUST WALK OUT OVE THE  ROOM. TWO DAYS LATER MY HEART IS HURTING BAD. I WOULD LIKE TO KNOW IF POSSIBLE THEY HIT THOSE STENS IN MY HEART ?

### output:

Hello, Brief answer: No chance that old stents in your heart be affected by simple diagnostic cardiac catheterization. Explanation: My opinion is that coronary artery stents are placed in coronary vessels to prevent vessel occlusion by a thrombus. With adherence to anti-ischemic medications and lifestyle modification the preventive rule is completed. Diagnostic coronary angiogram is even more simple procedure, just staining your coronary vessels with a nonionic dye to see if any obstruction or lesions are detected in the study, no wiring or invasive maneuvers done in diagnostic procedure. So hitting your stents is a far-fetched. The information provided by you is not sufficient to provide a good opinion. If someone comes to me with this condition I would ask them about their coronary angiogram report and if any problems in their medications or recurrent typical chest pain is present. Conclusion: I suggest you stick to your medications, if any chest pain developed please revise your physician. Hope I have answered your query. Let me know if I can assist you further.