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Table 1 Basic characteristics

From: First-phase ejection fraction by cardiovascular magnetic resonance predicts outcomes in aortic stenosis

Characteristic

Overall N = 141

CMR EF1 ≤ 20%N = 741

CMR EF1 > 20%N = 671

p-value2

Age

70 (63, 75)

70 (64, 75)

69 (62, 75)

0.5

Sex

0.5

 Female

44 (31%)

25 (34%)

19 (28%)

 

 Male

97 (69%)

49 (66%)

48 (72%)

 

Hypertension

94 (67%)

51 (69%)

43 (64%)

0.6

Dyslipidaemia

66 (47%)

36 (49%)

30 (45%)

0.6

Diabetes

22 (16%)

9 (12%)

13 (19%)

0.2

Coronary artery disease

53 (38%)

30 (41%)

23 (34%)

0.4

Systolic BP (mmHg)

147 (133, 162)

145 (132, 162)

148 (137, 163)

0.5

Diastolic BP (mmHg)

83 (76, 92)

84 (77, 92)

82 (76, 92)

0.5

NYHA class

 < 0.001

 I

66 (47%)

22 (30%)

44 (66%)

 

 II

45 (32%)

26 (35%)

19 (28%)

 

 III

27 (19%)

23 (31%)

4 (6%)

 

 IV

3 (2%)

3 (4%)

0 (0%)

 

AV Vmax (m/s)

3.8 (3.3, 4.4)

4.2 (3.8, 4.7)

3.4 (2.7, 3.8)

 < 0.001

AV MPG (mmHg)

33 (22, 43)

41 (32, 48)

24 (15, 33)

 < 0.001

AVA (cm2)

0.87 (0.73, 1.08)

0.78 (0.66, 0.91)

1.04 (0.81, 1.31)

 < 0.001

Zva (mmHg/mL/m2)

4.01 (3.26, 4.47)

4.11 (3.39, 4.78)

3.91 (3.25, 4.23)

0.035

LVMI (g/m2)

87 (73, 101)

90 (74, 103)

86 (72, 96)

0.15

SVI (ml/m2)

47 (41, 55)

48 (41, 56)

47 (40, 53)

0.6

CMR EF (%)

67 (64, 71)

67 (63, 71)

67 (64, 71)

0.5

CMR EF1 (%)

19 (14, 23)

14 (9, 17)

24 (22, 26)

 < 0.001

TTE EF1 (%) (n = 126)

25 (18, 30)

20 (12, 28)

27 (25, 30)

 < 0.001

CMR GLS (%)

− 18.0 (− 20.1, − 15.9)

− 17.7 (− 19.3, − 15.3)

− 18.6 (− 20.5, − 16.1)

0.082

Native T1 (ms)

1179 (1155, 1206)

1190 (1162, 1216)

1171 (1153, 1195)

0.046

ECV fraction (%)

27.6 (25.7, 29.7)

27.7 (25.7, 29.8)

27.4 (25.8, 29.1)

0.4

iECV (ml/m2)

22 (18, 27)

23 (19, 29)

22 (18, 26)

0.10

Infarct LGE

21 (15%)

11 (15%)

10 (15%)

 > 0.9

Non-infarct LGE

40 (28%)

23 (31%)

17 (25%)

0.5

hs-cTnI (ng/L)

7 (4, 12)

8 (4, 15)

5 (3, 10)

0.055

BNP (ng/L)

26 (11, 54)

29 (14, 71)

19 (9, 50)

0.13

  1. 1Statistics presented: median (IQR); n (%)
  2. 2Statistical tests performed: Wilcoxon rank-sum test; chi-squared test of independence; Fisher's exact test; values for P < 0.05 are shown in bold
  3. EF1 first phase ejection fraction, SBP systolic blood pressure, DBP diastolic blood pressure, NYHA New York Heart Association; AV aortic valve, AVA aortic valve area, Zva aortic impedance; LVMI left ventricular mass index; SVI stroke volume index; CMR cardiac magnetic resonance, EF ejection fraction, GLS global longitudinal strain, ECV extracellular volume, iECV indexed extracellular volume; LGE late gadolinium enhancement, hs-cTnI high sensitive cardiac troponin, BNP brain natriuretic peptide
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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