Is 60% coronary artery stenosis dangerous?

Question
Hello doctor,
I have coronary artery, one branch, 60%. Nothing happened before and now, but lately, I often have pain in my left chest and my spirit is not as good as before. The EF is 56%. So the doctor asked me if 60% coronary artery stenosis is dangerous? Do I need a stent? Thank you.
Anonymous customer
Answer
Answered by Specialist Doctor I Le Thanh An - Department of Medical Examination & Internal Medicine, Vinmec Nha Trang International General Hospital.

Hello,
With the question “Is 60% coronary artery stenosis dangerous? ", the doctor would like to answer as follows:
Coronary artery stenosis is usually accurately determined by MSCT coronary angiography with contrast pump, or coronary DSA (which is invasive and requires hospitalization. ). Coronary angiography and some advanced evaluation techniques (such as FFR, IVUS, OCT) are the gold standard to decide whether the coronary stenosis requires stenting. Indication for coronary intervention and stenting when the lesion is stenosis ≥ 70%.
Your case is 60% coronary artery stenosis, this is an intermediate level, so you can choose medical treatment and monitor treatment response (evaluate whether chest pain symptoms still appear, pain intensity decreases) how?), or need in-depth evaluation by FFR technique performed during coronary DSA, if this stenosis is judged to be significant then a stent should be placed.
Currently, you have chest pain again. It is recommended that you go to a cardiology center that can perform intensive coronary techniques for evaluation and treatment.
If you still have questions about coronary artery stenosis, you can go to a hospital of Vinmec Health System for further examination and advice. Thank you for trusting and sending questions to Vinmec. Wishing you lots of health.
Best regards!