Conversation: The conversation between human and AI assistant.
[|Human|] dear dr my father has bypass surgery last year at baroda heart institute at baroda. but he has no relief at all . he has experience  pain in heart which is gradually increasing . now dr suggest him angiography . my queries is that if in angiography there is a blockage and drs said that go through angioplasty then what is the guaranty that he got relief
[|AI|]  Angioplasty results after bypass surgery varies from patient to patient. But in general several studies revealed that there is 65-80% success rate of angioplasty in post-CABG (Bypass) patients. When these patients were followed over a period of next 30 months then about 70% of them were pain-free and had an improvement in angina. However, around 27% required repeat angioplasty with about 80% success rate while 15-20% were complicated by re-infarction and only 4-6% with cardiac death. In my opinion proceed with angiography to help determine the extent of blockage and to decide about the options available. Make sure the medications' compliance post-procedure as this is crucial. Stay blessed.