Severe coronary artery stenosis is a serious vascular disease of coronary heart disease. The treatment is mainly based on percutaneous coronary intervention or surgical treatment. Based on the theory of nutrient qi

defensive qi

qi and blood

the progression rule of coronary stenosis is understood. It is proposed that severe coronary stenosis belongs to disorder of nutrient qi and defensive qi and toxin and stasis blocking the collaterals. The treatment should start from the movement and generation of qi and blood

regulate nutrient qi and defensive qi

maintain the movement of qi and blood

regulate the steady state inside and outside the vessels. Tonifying the kidney and invigorating the spleen is performed to regulate the generation of qi and blood

and balance the yin

yang

qi and blood of body. Eliminating the phlegm and resolving the stasis is running through the whole treatment. Base on the regularity of plaque progression

the method of activating blood circulation and detoxification is firstly used to inhibit the plaque progression

and then the method of softening and resolving hard mass is used to dissipate the excess pathogen of plaque.