Conversation: The conversation between human and AI assistant.
[|Human|] My father had an angioplasty six yrs back, for last 3 months he has problem in walking, if he walks for 2 minutes, he is having sever breathing problems, his ECG IS ok, he takes his medicines daily and on time. should he go for one more angiography? if yes what is the risk? his age is 78 yrs.
[|AI|]  Hiangiography is an invasive test breathlessness on walking is medically termed as dance on exertion and your father is having class 2 dyspnoeas on exertion at present which can not be neglected any how our aim in this patient is to find out if there is any new blockage if stents are working properly if left ventricle ejection fraction is normal stress m1b1 gated scan with aspects (aka stress thallium) is a great test to provide a reliable answer to all these question sits a non-invasive testangiography is an invasive test and some time fatality is also reported sensitivity of stress thallium is 97% I would not recommend angiography as of now go for a stress thallium firstly