I did Chelation therapy several years ago after having a bad bout of angina pain. My Dr at the time, (has since retired), did the chelation. There were people from all over who came for it. There would be easily 20-30 people twice a day, hooked up to IV's. One man said he had nine stints that just kept clogging up. Once he started the chelation he had not had that problem again. I don't remember the time frame, but he did a series of treatments and when I met him, they came to town about every 3 months for a treatment.
I believe that if I had not done the chelation, I would have at least needed a stint, perhaps a bypass. Having no insurance I opted to do this first and make some lifestyle changes and for me it worked. I did find it very tiring to do. It is a form of chemotherapy, just using different substances. It would make one very hyper, hard to sleep for a day or two and yet I would feel very tired, acey and sometimes nauseous. I was taking a combination of EDTA and vitamins and minerals. I asked to have the B vitamin left out and that helped me no feel so nauseous. They also felt that I was allergic to the plastic bags and started using glass bottles for my IV's and I felt that helped. I probably did 8 to 10 treatments. I usually take one or two bottles of EDTA orally a couple of times a year just as a precaution. I might note that 2 or 3 years after this I learned about the magnesium product CALM, that I talk about in another message. Since I got on that I haven't needed a nitroglycerin tablet at all. I glass of magnesium, for me stops the chest pain.
I don't know about the other therapy, but like Teresa, will see what I can find.