1Interpretation of guidelines for acute and severe cardiovascular surgery cases concomitant with COVID-19 pneumoniaHU Xing-jian, SHI Jia-wei, XIA Jia-hong, DONG Nian-guoSpecial column193-1962Retinol binding protein 4 and the severity of coronary artery diseaseWANG Xiao, WANG Lin-lin, CHANG Cheng, ZHANG Xin-xin, LI Xiao-dongClinical practice197-2023The study of the expression of miR-125a-3p in peripheral blood mononuclear cells of coronary heart disease patientsDAI Hai-long, XIAO Juan, PAN Yun, GUANG Xue-feng, YIN Xiao-longClinical practice203-205,2504Lipoprotein(α)and the occurence and severity of coronary artery diseaseRENATI·Rouzi, WU Na-qiong, SUN Di, LIU Shuo-lin, GUO Yuan-lin, DONG Qian, LI Jian-junClinical practice206-2115The relationship between the polymorphism of sodium channel gene and the susceptibility of atrial fibrillation in Xinjiang Han and UygurBANNU·Kuken, YANG Yu-chun, LIU Zhi-qiang, HE Peng-yi, MUHUYATI·WulasihanClinical practice212-2166Study on the changes of QRS duration and coronary heart disease in patients with left bundle branch block and cardiac insufficiencyFENG Yan, MURETI·Abudixiaokuer, ZHANG YanClinical practice217-2217The effect of RIC on serum levels of NT-proBNP in aged patients with STEMI following PCI treatmentDAI Da-yin, DENG Xue-jun, YU Dong-meiClinical practice222-2268Predictive factors of no flow during percutaneous coronary intervention in patients of heart failure with preserved ejection fraction with ST-segment elevation myocardial infarctionXIONG Yong-hong, WANG Jing, LI Xue-ling, LIU Na, JIN Ze-ningClinical practice227-2319Assessment of hemodynamics in patients with only left anterior descending branch stenosis by transthorac doppler echocardiography coronary flow imagingZHANG Peng, GAO Jie, CHEN Lian-xiang, WANG WeiClinical practice232-23510Significance of HIF-1α,GDF-15 and LCN-2 in the course of acute left heart failure and its prognostic valueSHEN Jian-hong, LI Zan-fei, REN Xian-liangClinical practice236-24011Application of moderate hypothermia circulatory arrest combined with selective cerebral perfusion in infant aortic arch surgeryLI Xiao-bing, XIE Ye-wei, SHEN Li, LI Jia, ZHANG Ru-fangClinical practice241-24512Effects of transesophageal echocardiography guide on transthoracic surgical closure for congenital heart diseaseWANG Kai, LIU Fei, LIU Bo, WANG Li-chengClinical practice246-25013Effects of Ticagrelor on the QTd,hs-CRP and sCD40L after PCI in ACS patientsGAO Ping-feng, WANG Lian-kaiClinical medication251-25514A comparative study on the effect of Aspirin combined with Ticagrelor or Clopidogrel on the incidence of hyperuricemia in patients with acute coronary syndromeLIU Hao, YANG Zhi-yongClinical medication256-25915The progress of genetic diagnosis and treatment in catecholaminergic polymorphic ventricular tachycardiaSHEN Li-shui, YAO YanReview260-263,26816Application and research progress of multi-slice enhanced CT scan for percutaneous left atrial appendage closureLIU Jun, FANG Pi-huaReview264-26817MicroRNA and atrial fibrosisCAI Jia-geng, ZHEGN Le-min, ZU Ling-yunReview269-27218Research progress in Tp-e interval and its clinical application in coronary heart diseaseLUO Jin, HE Lin, OUYANG Ze-weiReview273-276,28819A new revolution in the treatment of heart failureGAO Yong, ZHAO Cui-pingReview277-28120The application of β-blockers' progressXUE Li, TIAN Hong, WANG li-xiaReview282-284 