According to Lei Zhongyi, most patients with coronary heart disease are middle-aged and elderly, with deficiency of Qi, deficiency of Qi and Blood, deficiency of Yin and Yang, deficiency of Qi to transport Blood, stagnation of Blood, imbalance of Qi, stagnation of Qi and Blood, invasion of Cold, stagnation of Cold and Blood, internal growth of Phlegm, mutual obstruction of Phlegm and Stasis, internal gathering of Heat and Poison, stagnation of Heat and Blood. The disease is characterized by deficiency of the root and the symptoms, with a mixture of deficiency and reality. The deficiencies include Qi deficiency, Qi-Yin deficiency and Yin-Yang deficiency, while the symptoms include blood stasis, cold clotting, phlegm stagnation, Qi stagnation and heat toxicity. Lei Zhongyi has devoted himself to the study of activating blood stasis and using the method of activating blood stasis to treat angina pectoris in coronary heart disease with remarkable results. Based on clinical observations, he proposed the theory of mutual integration of phlegm and blood stasis in the treatment of chest paralysis and heart pain. The theory of phlegm and stasis of blood is often combined, and the two are both pathological products and causative factors that intertwine and play a very important role in the development of coronary heart disease.

Chen Luofan, Zhang Tuowei. Explanation of the Connotation of Lei Zhongyi's Theory System of Chest Obstruction and Phlegm Stasis in Coronary Heart Disease. Academic Journal of Medicine & Health Sciences (2023) Vol. 4, Issue 6: 1-8. https://doi.org/10.25236/AJMHS.2023.040601.

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