2.2 Data analysis
Demographic and clinical characteristics of the patients were analyzed. The diagnosis at admission was divided in three categories: Stable Angina, Unstable Angina and Myocardial Infarction (NSTEMI/evolved STEMI). The angiographic characteristics were expressed as the number of vessels with significant stenoses as well as the SYNTAX score [2]. The perioperative risk was defined by the STS score [7].
The primary outcomes for this study were the proportion of patients referred to each revascularization modality in the HT and No HT groups and the time to revascularization from the initial diagnostic coronary angiography.