Calcification Characteristics of Low-Flow Low-Gradient Severe Aortic Stenosis in Patients Undergoing Transcatheter Aortic Valve Replacement
Table 1
Baseline characteristics.
Baseline characteristics
Combined
LFLGAS
Non-LFLGAS
value
Age, years
83 ± 0.5
81 ± 1.2
83 ± 0.5
0.07
Male
73 (53)
23 (68)
50 (49)
0.07
Coronary artery disease
91 (66)
25 (74)
66 (64)
0.40
Previous CABG
30 (22)
11 (32)
19 (18)
0.10
Diabetes mellitus
36 (26)
11 (32)
25 (24)
0.37
Hypertension
110 (80)
25 (74)
85 (83)
0.32
Cerebrovascular disease
37 (27)
7 (21)
30 (29)
0.38
Chronic obstructive pulmonary disease
21 (15)
5 (15)
16 (16)
1.00
Peripheral vascular disease
37 (27)
15 (44)
22 (21)
0.01
Pulmonary hypertension
19 (14)
7 (21)
12 (12)
0.25
Atrial fibrillation
35 (26)
14 (41)
21 (20)
0.02
Porcelain aorta
16 (12)
5 (15)
11 (11)
0.54
Creatinine (µmol/L)
117 ± 5
112 ± 6
133 ± 3
0.14
STS-PROM score (%)
5.6 ± 0.3
5.3 ± 0.30
6.3 ± 0.7
0.24
LVEF (%)
55 ± 1.1
48 ± 2.7
57 ± 1.1
0.003
Mean aortic valve gradient (mmHg)
48 ± 1.4
29 ± 1.2
55 ± 1.4
<0.001
Stroke volume index (mL/m2)
31 ± 0.9
27 ± 0.9
32 ± 1.1
0.009
Aortic valve area (cm2)
0.72 ± 0.02
0.81 ± 0.04
0.69 ± 0.02
0.004
CABG: coronary artery bypass grafting, STS-PROM: Society of Thoracic Surgeons Predicted Risk of Mortality, and LVEF: left ventricular ejection fraction, respectively. Results are presented as mean and standard error, or as number and percentages. denotes a significant difference between patients with low-flow low-gradient severe aortic stenosis (LFLGAS) and those with non-LFLGAS.
