Other data collection and definitions
chest pain, myocardial injury
LEFT BRANCH BUNDLE BLOCK, RENAL DISEASE, LEFT VENTRICULAR HYPERTROPHY
Venous blood samples were taken from all patients pre-pPCI and then 24, 48 and 72 h after pPCI, samples were used for measurement of serum creatinine and estimated glomerular filtration rate (eGFR) based on Modification of Diet in Renal Disease (MDRD) equation in (ml/min/1.73mSTEMI was diagnosed based on the diagnostic criteria recommended by the European Society of Cardiology (ESC): (1) chest pain lasting more than 30 min.; (2) the dynamic electrocardiogram change: ST-segment elevation was measured at the J-point at least in two contiguous leads with ST-segment elevation of 2.5 mm in men < 40 years, 2 mm in men 40 years, or 1.5 mm in women in leads V2–V3 and/or 1 mm in the other leads in the absence of left ventricular hypertrophy or left bundle branch block; (3) levels of serum markers of myocardial injury were changed; (4) the coronary angiography showed that patients could receive PCI for anatomy in infarct-related artery[