Comparison of 9-month angiographic outcomes of Resolute zotarolimus-eluting and everolimus-eluting stents in a real world setting of coronary intervention in Korea

Table 1 Baseline clinical characteristics of crude population ^*

	EES (N = 405)	R-ZES (N = 274)	P value
Age, years	63.9 ± 11.8	64.9 ± 11.9	0.264
Male	297 (73.3%)	197 (71.9%)	0.680
Coexisting condition
Diabetes mellitus	157 (38.8%)	101 (36.9%)	0.616
Hypertension	283 (69.9%)	172 (62.8%)	0.056
Dyslipidemia	140 (34.6%)	91 (33.2%)	0.714
Cerebrovascular disease	35 (8.7%)	18 (6.6%)	0.325
Peripheral artery disease	9 (2.2%)	9 (3.3%)	0.398
Chronic renal failure	15 (3.7%)	14 (5.1%)	0.374
Cardiovascular risk factors
Current smoker	103 (25.4%)	77 (28.1%)	0.439
Previous PCI	69 (17.0%)	40 (14.6%)	0.396
Previous CABG	5 (1.2%)	5 (1.8%)	0.531
Previous MI	33 (8.1%)	25 (9.1%)	0.842
Clinical indications
Stable angina	189 (46.7%)	124 (45.3%)	0.717
Unstable angina	99 (24.4%)	64 (23.4%)	0.745
Acute myocardial infarction	117 (28.9%)	86 (31.4%)	0.485
Emergency PCI for acute STEMI	41 (10.1%)	34 (12.4%)	0.351
Left ventricular ejection fraction	57.11 ± 10.40	56.25 ± 11.71	0.374
Severe LV dysfunction (LVEF < 30%)	6 (1.5%)	7 (2.6%)	0.317
Multivessel disease	275 (67.9%)	207 (75.5%)	0.031
Complex patient^†	293 (72.3%)	208 (75.9%)	0.328

^* Data are number (%), unless otherwise indicated. Plus-minus values are means ± SD.
^† Complex patient : Complex patients (= off label use) were defined as having at least one of the following characteristics: serum creatinine concentration of 140 umol/L (1.6 mg/dL) or more; left ventricular ejection fraction < 30%; an acute myocardial infarction within the previous 72 hours; more than one lesion per vessel; two or more vessels treated with a stent; a lesion longer than 27mm; or bifurcated lesion, bypass graft, in-stent restenosis, unprotected left main coronary artery, presence of thrombus, or total occlusion.
Abbreviations: CABG coronary artery bypass graft, EES everolimus-eluting stent, F/U follow-up, IQR interquartile range, LV left ventricle, LVEF left ventricular ejection fraction, MI myocardial infarction, PCI percutaneous coronary intervention, R-ZES Resolute zotarolimus eluting-stent, STEMI myocardial infarction with ST-segment elevation.

ISSN: 1471-2261