Hello, Thanks for writing to Health Care magic, I am Dr , Muhammad Ahmad , I have read your question closely, I understand your concern and will be helping you with your health related problem. EECP is a therapy which is UNDER TRIAL to help patients with angina, it creates collaterals in patients and recent trials showed that patients with angina have to use less dose of medication after this therapy but here is a catch to it. They still have to use medication after that although things get better for them to some extent. Now in case of your mother there are three blocked arteries and there can not be enough collaterals formed which can compensate for three large arteries , and three lasrge arteries are not going to get cured with medication either so in my opinion you should not take risk over you mother s health thinking about a therapy which is just under trial and not an established treatment modality. Blockage of three arteries would need a surgery it can t even be treated safely with a stent so inmy opinion you should consider a surgery as early as possible instead of considering a treatment which is not sure to help your mother I hope this answered your question, If you have more queries I am happy to answer you. Regards. Dr.Muhammad Ahmad