|LVEF (%)a||61 ± 16|
|Multivessel disease||48 (56%)|
|Collateral circulation||16 (19%)|
|TIMI flow grade 0–1||33 (36%)|
|Calcified lesion||14 (15%)|
↵a Measurement not performed in 19 patients in unstable clinical condition. Data are expressed as mean value ± SD or number (%) of patients. ACC/AHA = American College of Cardiology/American Heart Association classification; LAD = left anterior descending coronary artery; LCx = left circumflex coronary artery; LMCA = left main coronary artery; LVEF = left ventricular ejection fraction; RCA = right coronary artery; SVG = saphenous vein graft; TIMI = Thrombolysis in Myocardial Infarction trial coronary flow.