Table 1 Clinical and angiographic features of patients who underwent directional coronary atherectomy for treatment of symptomatic ischaemic heart disease

Characteristics	SAP (n = 25)	UAP (n = 25)	p Value
Age (years)	63 (11)	61 (12)	0.41
Male (%)	88	84	0.68
Hypertension (%)	40	60	0.16
Diabetes mellitus (%)	28	44	0.24
Smoking (%)	72	76	0.75
Total cholesterol (mmol/l)	4.70 (1.00)	5.20 (0.70)	0.07
HDL cholesterol (mmol/l)	1.25 (0.35)	1.20 (0.35)	0.59
LDL cholesterol (mmol/l)	2.65 (0.90)	3.20 (0.50)	0.06
Triglycerides (mmol/l)	1.72 (0.86)	1.88 (0.90)	0.58
QCA analysis
MLD (mm)	0.80 (0.44)	0.76 (0.45)	0.72
DS (%)	76 (11)	82 (10)	0.06
Stenosis morphology			<0.0001
Smooth (%)	95	32
Complex (%)	5	68

Values are mean (SD) or percentages.
DS, diameter stenosis; HDL, high-density lipoprotein; LDL, low-density lipoprotein; MLD, minimal lumen diameter; QCA, quantitative coronary angiography; SAP, stable angina pectoris; UAP, unstable angina pectoris.