This would be the optimal time to begin chelation therapy. According to her response and physical examination, we had built up her stamina and cardiac function to the point where she was in a very stable condition of Home bridging loan. Yet, there was continued evidence of poor arterial blood flow. Chelation with EDTA was now appropriate. Margaret began her chelation in October 1983. By November, her angina was markedly improved. She continued taking chelation treatments. By Christmas 1983, Margaret noted that, in her day-to-day activity, her angina was gone. For the first time in years, she was able to go out alone and do Christmas shopping.