Combined with the pathomechanical characteristics of coronary heart disease, many original ideas have been proposed for the identification and treatment of patients after percutaneous coronary intervention in Chinese medicine, which are used clinically with good efficacy, and are summarized below. Chinese medicine is constantly developing, and it is necessary to master the advanced achievements of contemporary medicine to promote the development of Chinese medicine. The percutaneous coronary intervention developed in the past 20 years is a new method for the treatment of coronary heart disease. Through a large number of clinical evidence, Deng found that before PCI, patients mostly had chest pain, pain with a fixed location, dark tongue, or petechiae on the edge of the tongue, or varicose veins at the base of the tongue, the pulse string or astringent blood stasis symptoms, although the post-operative patient chest pain symptoms are significantly relieved, or even disappeared, but the mental discomfort, poor appetite, weakness, vomiting, nausea, light and dark tongue, pulse deficiency and other symptoms of deficiency are more obvious, combined with PCI can reach the lesion directly, open the occlusion of the Therefore, Mr. Deng suggested that the coronary interventional technique can be classified as a Chinese medicine treatment method of “dispelling evil”, which has the effect of “activating blood and breaking blood stasis”. Patients with coronary artery disease are mainly deficient after PCI, and the “blood-breaking” effect of PCI tends to deplete the vital energy, so the symptoms of deficiency may be aggravated compared with before. Insufficient vital energy will lead to the development of evil, and if the Qi and blood cannot be harmonized, blood stasis and phlegm will develop. Depression and obstruction of the vasculature will lead to chest pain. Thus, the pathogenesis of postoperative PCI is characterized by a predominantly deficient nature and the presence of actual evil. Second, the treatment is mainly to support the righteousness and supplemented by the elimination of evil. PCI can only be a temporary palliative local treatment by expanding the occluded or narrowed blood vessels through balloon dilation and stent placement, while atherosclerosis is a systemic pathological disease, coronary atherosclerosis will develop after PCI, and restenosis is inevitable after PCI. The development of atherosclerosis. According to the theory of TCM, PCI is only a local therapy to treat the symptoms of coronary artery disease, which cannot fundamentally change the pathological mechanism of coronary artery disease, while “holistic treatment” and “five organ-related” is one of the basic features of TCM. The use of TCM therapy after surgery can make up for the deficiencies of interventional therapy by adjusting the yin and yang qi and blood as a whole, so that “yin and yang can be kept secret” and “qi and blood can be harmonized”. For the postoperative period of PCI, the pathological mechanism of “deficiency of the original is the main cause, but also the actual evil”, the postoperative treatment should also be mainly to help the positive, supplemented by the elimination of evil. To supplement the heart, spleen and kidney, we need to observe the deficiency of which organ is the main cause of the deficiency, and to supplement the heart Qi, we should use Ginseng and Red Ginseng, and in case of heart Qi deficiency, we can use Ginseng; to supplement the spleen Qi, we should use Radix et Rhizoma Atractylodis Macrocephalae, and to supplement the spleen, we should add Poria and Poria to strengthen the spleen and promote dampness; to supplement the kidney Qi, we should use Radix et Rhizoma Macrocephalae, and to supplement the vital energy, we should use Astragalus. If the patient also has signs of Yang Qi deficiency such as coldness, weakness, and warmth in the limbs, we can add Radix et Rhizoma Polygonati and Radix ginger to warm the Kidney Yang. For patients with Qi deficiency and phlegm stasis, we can add and reduce the formula of Guanxin. This formula adds Dang Shen and Wu Zha Long to warm gall bladder soup to benefit Qi; Dan Shen to invigorate blood and disperse blood stasis; Yi Hovenia for Citrus aurantium shell to reduce the power of moving Qi; Yi Chen Pi for Orange Red to dissolve phlegm and dampness of the spleen and stomach. Before and after the interventional treatment of acute myocardial infarction, Deng emphasized the importance of mastering the timing and degree of “pass” and “tonic”. In the preoperative period of PCI, patients with severe chest pain should be mainly treated with the “pass” method, such as activating blood circulation, eliminating phlegm, warming Yang, and moving Qi, etc. Because patients are often accompanied by cold sweating, weakness, cold limbs and other evidence of Yang deficiency, it is necessary to take into account the “tonic” method of benefiting Qi and warming Yang. After surgery, although most of the patients’ chest pain symptoms have disappeared, due to the existence of myocardial depression and ischemia-reperfusion injury, the patients’ cardiac function is low, mostly manifesting as shortness of breath, inability to lie down, cold sweating, lack of warmth in the extremities, poor appetite, etc. At this time, the “tonic” method should be used mainly, and the method of benefiting qi and warming yang should be used, so as to achieve ” The purpose is to “benefit the source of fire to eliminate Yin and shade”, so as to rapidly improve the patient’s cardiac insufficiency and shock state. Clinical studies have confirmed that the combined treatment of Chinese and Western medicine can effectively improve the cardiac function of AMI patients, shorten the hospitalization time and reduce the medical cost, as well as significantly improve the patient’s post-top. Third, the development of Tongguan capsule to prevent restenosis after intervention Noting that the incidence of restenosis after PCI is 20% to 40%, which makes many patients undergo target vessel revascularization again, which increases the economic burden of patients, Deng proposed to develop inexpensive and effective Chinese medicine to prevent the occurrence of restenosis. Deng pointed out that restenosis still belongs to the category of “thoracic paralysis” in Chinese medicine, and the “standard reality” is its important pathogenesis. Interventional treatment can significantly improve the patient’s stasis, but thoracic palsy is ultimately a deficiency of the essence and the symptoms, and post-operative qi is still insufficient. “If the Qi is insufficient, evil will come together”, thus leading to the formation of blood stasis and phlegm tangible evil, which again occludes the veins and collaterals. Among them, blood stasis is predominant, thus qi deficiency and blood stasis are the main pathogenesis of postoperative restenosis in PCI. Under the guidance of this theory, we developed Tongguan capsule (composed of Astragalus and leech). The formula emphasizes the use of Astragalus to replenish the vital energy and benefit the Qi to help the blood flow, taking the meaning of “Qi is the commander of the blood, and when the Qi flows, the blood flows”. Pearl capsule” said: “Astragalus sweet warm, its use has five, fill all deficiencies, one; benefit yuan qi, two; strong spleen and stomach ……”; leech taste salty bitter into the blood, good at breaking blood and blood stasis, its power is steep effect macro. All the medicines together, have the effect of benefitting the qi and invigorating the blood, breaking blood stasis and opening up the ligaments. Experimental studies have found that Tongguan capsule can effectively inhibit intimal proliferation, inhibit intimal PDGF-β mRNA and TGF-β expression, inhibit vascular smooth muscle cell proliferation and extracellular base synthesis, and have the effect of promoting apoptosis in rabbits after angioplasty. Clinical studies have confirmed that Tongguan capsule can reduce the blood lipid content after PCI, inhibit platelet activation caused by coronary intervention, improve the hypercoagulable state after PCI, regulate the balance of coagulation-fibrinolytic system in vivo, and reduce the incidence of restenosis to about 13% 6 months after PCI. Tongguan capsule is a simple but powerful medicine with a strict combination of Jun Ju and Zuo, its treatment of coronary heart disease is multi-target and multi-level, not only can prevent the occurrence of restenosis after PCI, but also can be used for the treatment of coronary angina and inhibit the development of atherosclerosis, which is worth further development and promotion. Since Qi deficiency and phlegm stasis type is also an important type of evidence in patients with restenosis after PCI, Deng proposed to add Chen Pi and Fa Xian Xia to Tong Guan Capsule, which is Tong Guan Capsule II with the function of benefiting Qi, invigorating blood and resolving phlegm. The experimental study initially confirmed that the drug also has a good inhibitory effect on smooth muscle cell proliferation. Typical case Luo, male, 73 years old, was admitted to ICU with “recurrent chest pain for 2 years, aggravated for 3 days, and continuous chest pain for 3 hours”, HR: 40 times/min, BP: 80/54mmHg, ECG: ST segment arch-back elevation in leads II, III, V3R, V4R, 0.2~0.4mV. The patient was diagnosed as “acute right ventricular and inferior wall myocardial infarction with cardiogenic shock”, and was sent to the interventional unit for emergency PCI. After the operation, the patient could not lie down and was in a continuous hypotensive state, and could not stop the dobutamine and temporary pacemaker, so he asked Deng Lao for consultation. The patient’s symptoms were: depression, inability to lie down, shortness of breath when moving, chest tightness, dullness, vomiting when eating, cold extremities, pale tongue, thin white fur with cracks, tortuous veins at the base of the tongue, slippery guan pulse and sunken ulnar pulse. The sunken ulnar pulse is a deficiency of kidney yang, and the slippery Guan pulse is a phlegm bloom in the middle jiao, which, when combined with the tongue image, is a deficiency of heart and kidney yang and an internal obstruction of phlegm and stagnation, and the deficiency is the main evidence. Heart and kidney Yang deficiency, Yang Qi in the chest is not transported, so see the extremities rebellious cold, weakness, drowsiness; Phlegm in the middle Jiao, the stomach does not descend, so food is vomiting; Heart Qi deficiency, blood stagnation and stasis of blood, phlegm and stasis of internal obstruction, heart vein is not blocked, so chest tightness vague; Kidney is the main nourishing Qi, kidney Yang deficiency, kidney loss of intake, so see the movement of shortness of breath. The treatment is to warm the Yang and benefit the Qi, strengthen the spleen, resolve the phlegm and clear the ligament. The proposed formula: Ginseng 15g (separate decoction), Radix Codonopsis pilosulae 30g, Radix et Rhizoma Polygonati 10g, Radix Fructus Panax 10g, Radix Angelicae Sinensis 15g, Citrus Aurantium 6g, Radix Orange 6g, Radix Yun Ling 15g, Rhizoma Atractylodes Macrocephala 15g, Radix Glycyrrhiza Uralensis 6g, Rhizoma Bamboo 10g. After taking the above 2 doses, the patient’s spirit improved significantly, no chest pain attack, can eat without vomiting, can sit up without shortness of breath, the extremities turned warm, blood pressure, ECG stable, withdrawn Dopamine and temporary pacemaker were withdrawn. After taking 3 more doses of the formula, the patient was in good spirits, spoke and ate as usual, could get out of bed and move around lightly, the tongue changed from light dark to light red, and the tortuous veins at the base of the tongue were reduced. He was discharged after 7 days of hospitalization and recovered from the disease. The patient was discharged from the hospital after 7 days of hospitalization and recovered from the disease.