Table 2 Baseline echocardiographic and computed tomography characteristics.

From: Evaluation of aortic arch calcification to predict prognosis after transcatheter aortic valve replacement

 

Moderate/severe AAC

(n = 138)

No/mild AAC

(n = 326)

P value

Echocardiography

   

LVEF, %

59.6 (50.7, 66.6)

58.8 (45.7, 64.5)

0.161

Max velocity, m/s

4.8 (4.3, 5.3)

4.7 (4.2, 5.3)

0.644

Mean gradient, mmHg

53 (42, 67)

51(42, 64)

0.828

Low gradient AS

25(18.1)

50(15.3)

0.457

Aortic valve area, cm2

0.6 (0.5, 0.7)

0.6 (0.5, 0.8)

0.950

Morderate/severe aortic regurgitation

57 (41.3)

130 (39.9)

0.775

Morderate/severe mitral regurgitation

42 (30.4)

73 (22.4)

0.067

Morderate/severe tricuspid regurgitation

20 (14.5)

47 (14.4)

0.983

Computed tomography

   

Perimeter derived diameter, mm

24.0 (22.4, 25.9)

24.3(22.8, 26.2)

0.134

Sinotubular junctional diameter, mm

29.03 ± 3.84

30.52 ± 4.48

0.001

Ascending aorta diameter at 4 cm, mm

36.00 ± 4.29

37.94 ± 4.58

< 0.001

LM height, mm

13.4 (11.8,15.8)

14.4 (12.0, 16.7)

0.027

RCA height, mm

16.1 (14.3,17.7)

16.4 (14.4, 18.7)

0.211

Moderate/severe aortic valve calcification

105 (76.1)

264 (81.0)

0.232

  1. Data was presented as n (%) or mean ± SD or median (interquartile range, IQR). p Values in bold are statistically significant. Low gradient AS was defined as severe AS with mean gradient lower than 40 mmHg. AAC = aortic arch calcification; AS = Aortic stenosis; LM = left main artery; LVEF = left ventricular ejection fraction; RCA = right coronary artery.
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