Impact of Lesion Preparation Technique on Side Branch Compromise in Calcified Coronary Bifurcations: A Subgroup Analysis of the PREPARE-CALC Trial

Table 1

Baseline characteristics (n = 104 patients).

	SCB (n = 43)	RA (n = 61)	value
Age (years)	75.0 ± 6.6	74.8 ± 6.5	0.88
Males	34 (79%)	47 (77%)	0.81
Height (cm)	173.9 ± 8.7	171.6 ± 8.9	0.20
Weight (kg)	83.0 ± 13.0	82.3 ± 16.1	0.83
Diabetes mellitus	9 (21%)	21 (34%)	0.13
Hypertension	39 (91%)	58 (96%)	0.38
Dyslipidemia	26 (60%)	45 (74%)	0.15
Current smokers	6 (13%)	9 (15%)	0.91
Chronic renal failure	11 (26%)	12 (20%)	0.50
Previous MI	17 (39%)	10 (16%)	0.008
Previous PCI	20 (46%)	26 (43%)	0.69
Previous CABG	6 (14%)	6 (10%)	0.52
Unstable angina	2 (5%)	4 (7%)	0.68
Atrial fibrillation	3 (7%)	11 (18%)	0.10
Left main disease	21 (49%)	25 (41%)	0.43
Multivessel disease	38 (88%)	54 (88%)	0.98
LV ejection fraction (%)	57.5 ± 10.3	57.9 ± 10.1	0.86
Multilesion PCI	22 (51%)	29 (48%)	0.72
Unfractionated heparin	43 (100%)	61 (100%)	1.00
Bivalirudin	0 (0%)	0 (0%)	1.00
GP IIb/IIIa antagonists	0 (0%)	2 (3%)	0.51

Values are n (%) or mean ± SD; CABG=coronary artery bypass graft, GP=glycoprotein, LV=left ventricle, MI=myocardial infarction, PCI=percutaneous coronary intervention, RA=rotational atherectomy, and SCB=scoring/cutting balloon. Glomerular filtration rate <60 ml/min.