Efficacy of Low-Pressure Inflation of Oversized Drug-Coated Balloon for Coronary Artery Disease

Table 2

Procedural and follow-up quantitative angiographic characteristics in the crude cohorts.

	LP group (n = 191)	SP group (n = 135)	value
Number of patients	154	119
Procedural devices
DCA (%)	9 (4.7)	4 (3.0)	0.57
PTCRA (%)	86 (45.0)	38 (28.1)	0.003
B/A ratio	0.76 ± 0.16	0.71 ± 0.17	0.11
Drug-coated balloon
DCB/A ratio	1.14 ± 0.22	1.03 ± 0.16	<0.001
Inflation pressure (atm)	2.4 ± 1.2	7.1 ± 2.2	<0.001
Inflation time (sec)	72.2 ± 39.8	64.8 ± 35.2	0.083
At PCI
Reference diameter (mm)	2.38 ± 0.67	2.57 ± 0.66	0.011
Lesion length (mm)	11.73 ± 6.87	10.54 ± 5.69	0.10
MLD (mm)
Preintervention (mm)	0.89 ± 0.45	0.94 ± 0.48	0.38
Postintervention (mm)	1.74 ± 0.57	1.88 ± 0.49	0.027
Percent diameter stenosis
Preintervention (%)	62.9 ± 14.5	63.6 ± 15.1	0.69
Postintervention (%)	26.2 ± 11.9	24.1 ± 11.3	0.11
Acute gain (mm)	0.85 ± 0.47	0.94 ± 0.47	0.091
Type of dissection (NHLBI)			0.61
A	22 (11.5)	17 (12.6)
B	23 (12.0)	17 (12.6)
C	10 (5.2)	3 (2.2)
Bailout stenting after DCB	0 (0)	0 (0)
At follow-up
Number of patients	114	88
Angiography (%)	145 (75.9)	102 (75.6)	1.0
MLD (mm)	1.76 ± 0.62	1.89 ± 0.59	0.094
% diameter stenosis (%)	29.24 ± 17.55	25.77 ± 15.64	0.11
Late lumen loss (mm)	−0.00 ± 0.42	−0.01 ± 0.42	0.86
Restenosis (%)	13 (9.0)	10 (9.8)	0.83

MLD, minimal lumen diameter; SD, standard deviation; PCI, percutaneous coronary intervention; DCA, directional coronary atherectomy; PTCRA, percutaneous coronary rotational atherectomy.