Hello Doctor, My Mother-in-Law had underwent Valve replacement surgery 10-12 years ago, recently she is again complaining of chest pain and breathlessness. We have undergone all the tests to determine the reason for pain & medications to see changes but nothing showed any result and she continues to complain pain and breathlessness. Currently we are recommended to undergo Angio-gram. Couple of months ago we were told that, we cannot do angio-gram as she had undergone valve replacement as it will turn-out to be very risky and hence we need to treat this only thru medicines but again we same Doctor has instructed us to do angio-gram. We are confused and un-clear of the risk we are taking. Kindly suggest if we can do angio-gram for a patient who has undergo a valve replacement surgery.