Abstract:【Abstract】Objective To explore the value of angiopoietinlike protein 2 (Angpt2), angiopoietinlike protein 1 (Angpt1) and highsensitivity troponin T (hscTnT) in predicting major adverse cardiovascular events (MACE) in angina patients undergoing percutaneous coronary intervention (PCI). Methods A total of 123 angina patients underwent PCI in Yibin Second People's Hospital from March 2015 to May 2018 were enrolled. Serum Angpt2, Angpt1 and hscTnT were compared among patients with different grades of angina. They were grouped according to the occurrence of MACE during the 1year followup. Risk factors for MACE were screened. The predictive value of above parameters for MACE in angina patients undergoing PCI, and the correlation among the three indicators were analyzed. 〖WTHZ〗ResultsWith the increase of the grade of angina, levels of serum Angpt2 and hscTnT increased, while the Angpt1 level decreased (P<005). The levels of serum Angpt2 and hscTnT in MACE group were higher than those in nonMACE group, while the Angpt1 level was lower than nonMACE group (P<005). The proportions of left ventricular ejection fraction (LVEF) lower than 50%, N terminal pro B type natriuretic peptide (NTproBNP) not higher than 500 pg/mL and grade III angina in MACE group were higher than those in nonMACE group (P<005). Angpt2, hscTnT, LVEF, NTproBNP and angina grading were all risk factors for MACE after PCI (P<005). When the Youden index of Angpt2 for predicting MACE after PCI was the largest, the sensitivity and specificity were 9565% and 7900%. When the Youden index of hscTnT was the largest, the sensitivity and specificity were 7391% and 8900%. When the Youden index of Angpt1 was the largest, the sensitivity and specificity were 6087% and 8200%. Angpt2 was negatively correlated with Angpt1 (P<005), but positively correlated with hscTnT (P<005). Angpt1 was negatively correlated with hscTnT (P<005). Conclusion The occurrence of MACE in patients with unstable angina after PCI is related to changes in levels of Angpt2, Angpt1 and hscTnT. Angpt2 and hscTnT are of great value for predicting MACE after PCI while the predictive value of Angpt1 is limited. There is a correlation among the expression of the three indicators.