Study Population
Patients with STEMI who underwent Primary PCI (p-PCI) in our hospital
between February 2014 and December 2017 were included in this
retrospective study. Inclusion criteria were as follows: onset of
symptoms <6 hours before p-PCI; ST-segment elevation
> 0.2 mV in 2 or more contiguous precordial or extremity
leads. Left and right coronary angiograms were obtained before the
attempted angioplasty. Exclusion criteria were venous graft-related
infarcts, non-gradable IRA flow due to technical reasons, concurrent
pericardial disease, chronic pulmonary disease, pulmonary hypertension,
valvular heart disease (moderate to severe insufficiency and/or
stenosis), acute pulmonary embolism, history of cardiac arrest before
admission Patients with a history of the previous CAD treated with PCI
or coronary artery bypass grafting, malignancy, active infection, and
connective tissue disorder were excluded from the study. The patients
were divided into two as TIMI 0-1 and TIMI 2-3 according to the IRA
patency rate. Of the patients included in this study, 67% were of TIMI
flow 0-1 (n = 551), 33% of TIMI flow 2-3 (n=271). Informed consent of
each subject’s approval of the Local Ethics Committee with the
principles of the Helsinki Declaration was obtained.