AliMohame Elossta, male, 63 years old, Syrian, hospitalization number: 3029527, patient with previous coronary artery disease, underwent coronary artery stent implantation in a French hospital, on August 26, 2012 at 0:00 a.m., the patient felt pain in the precordial region after defecation, chest tightness and palpitations, shortness of breath, sweating profusely, emergency troponin check: 0.188ug/L, considered acute coronary artery After stabilization of vital signs with anti-cardiac failure treatment, the patient was sent to the intervention room for coronary angiography + single coronary balloon dilatation + coronary drug-eluting stent implantation, and coronary angiography with radial artery puncture showed no significant stenosis in the proximal segment of the left anterior descending artery, 50% stenosis after stenting, no significant stenosis in the proximal segment of the gyral branch, about 70% stenosis in the middle and distal segments, and the establishment of anterior descending branch – right coronary collateral branch. The right coronary artery was 100% occluded in the proximal segment of the right posterior descending branch artery. The right femoral artery was punctured, contralateral angiography was performed, and PCI was performed in the right coronary artery. after PDA balloon dilation, one stent was placed, and the stenosis changed from 100% to 0%, and the procedure went smoothly. The patient was discharged from the hospital after the procedure, as the pain in the precordial region and chest tightness and palpitations disappeared. Li Song, Cardiovascular Disease Specialist, Guangdong Chinese Medicine Hospital