Summary of case history,　The patient, surnamed Meng, male, 60 years old, was admitted to our hospital mainly due to "paroxysmal precardiac pain for 6 months, aggravated for 3 days". The patient reported that there was no obvious cause of precardiac pain 6 months ago, which lasted 3-5 minutes and was relieved after rest. He went to the Fourth Affiliated Hospital of Harbin Medical University for treatment and was diagnosed as "coronary heart disease", and PCI treatment was recommended. Combined with the patient's history of aplastic disease and surgical risk, after communication with the patient, he was admitted to hospital for quiet drug treatment. Three days ago, the patient had pain in the precardiac area again due to fatigue, which was more severe and more frequent than before, accompanied by weakness and shortness of breath, and no obvious relief after taking nitroglycerin, so he came to Professor Zhou Yabin's clinic for treatment. Symptoms: paroxysmal pain in the precordial area, accompanied by chest tightness, shortness of breath, weakness, dizziness, dry mouth bitter, cold hands and feet, diet is OK, sleep can, night frequent urination, loose stool.,TCM diagnosis,　syndrome of phlegm turbidity and blood stasis obstruction in chest pain and heartache.,Western medicine diagnosis,　coronary atherosclerosis heart disease;unstable angina pectoris;hypertension level 1(high risk);chronic aplastic anemia.,Therapeutic methods,　Based on the principle of relieving phlegm, resolving blood stasis, and relieving pain, the formula is modified with Gualou Xiebai Banxia Tang and Taohong Siwu Tang.,Clinical outcomes,　After treatment, the patient's mental state improved significantly, and his voice was loud and clear. He said that there was no pain in the precordial area within half of month. He rechecked the ECG and blood routine tests. The ECG diagram showed: Sinus rhythm, normal ECG, and no axis deviation; Although the blood routine did not return to normal values, there was no decrease.