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Table 3 Classification according to presence or patterns of systolic anterior motion of mitral valve

From: Diverse geometric changes related to dynamic left ventricular outflow tract obstruction without overt hypertrophic cardiomyopathy

 

Leaflet SAM

Chordal SAM

PM kissing

Mixed

None of above

P

(n = 31)

(n = 80)

(n = 38)

(n = 3)

(n = 16)

Age, years

71.4 ± 11.0

72.2 ± 9.6

67.2 ± 13.5

69.3 ± 17.8

74.1 ± 7.5

0.140

Women, n (%)

18 (13)

27 (34)

14 (37)

2 (67)

9 (56)

0.091

Hypertension, n (%)

20 (65)

67 (84)

34 (90)

2 (67)

13 (81)

0.091

SBP, mmHg

123.9 ± 17.2

130.8 ± 19.4

131.6 ± 23.6

120.0 ± 5.7

123.7 ± 26.5

0.409

DBP, mmHg

71.8 ± 11.3

71.4 ± 11.3

72.8 ± 13.4

71.0 ± 8.5

64.7 ± 10.3

0.320

LVEDD/BSA, mm/m2

23.8 ± 2.7

24.4 ± 2.7

23.6 ± 3.2

28.0 ± 9.8

24.3 ± 4.3

0.255

LVESD/BSA, mm/m2

15.0 ± 2.3

15.6 ± 2.0

14.9 ± 2.1

17.2 ± 4.3

15.2 ± 2.4

0.271

LV ejection fraction, %

70.3 ± 5.1

68.1 ± 5.8

69.5 ± 5.7

71.0 ± 7.1

69.6 ± 5.9

0.355

Angle at end-systole, °

160.3 ± 9.9

161.2 ± 11.9

165.5 ± 12.4

162.2 ± 11.4

163.5 ± 13.0

0.338

Angle at end-diastole, °

151.3 ± 10.0

151.1 ± 12.8

154.8 ± 13.2

150.6 ± 10.1

155.0 ± 12.1

0.505

BST, mm

15.7 ± 2.5

15.6 ± 2.7

14.1 ± 2.0

15.9 ± 3.3

15.7 ± 1.7

0.024

LVMI, g/m2

96.4 ± 30.8

87.5 ± 20.4

87.1 ± 24.1

86.4 ± 30.2

86.7 ± 40.9

0.540

LA volume index, ml/m2

27.6 ± 18.8

24.2 ± 7.2

27.0 ± 7.8

34.1 ± 17.6

24.0 ± 10.9

0.340

E/e’

15.0 ± 5.5

14.0 ± 5.2

13.4 ± 4.4

13.1 ± 6.1

12.6 ± 0.6

0.716

S’, cm/s

8.5 ± 2.3

8.1 ± 1.8

8.4 ± 2.6

6.0 ± 1.4

9.7 ± 3.1

0.076

Latent DLVOTO, n (%)

16 (52)

74 (93)

32 (84)

3 (100)

10 (63)

<0.001

LVOT PGresting, mmHg

36.7 ± 28.8

15.6 ± 15.0

18.3 ± 14.3

12.6 ± 6.3

27.1 ± 15.8

<0.001

LVOT PGValsalva, mmHg

64.3 ± 39.9

43.4 ± 13.9

42.7 ± 13.0

41.4 ± 20.4

45.3 ± 11.3

<0.001

LVESWS, g/cm

52.1 ± 15.5

49.8 ± 13.1

48.7 ± 10.6

38.7 ± 4.8

49.2 ± 14.0

0.633

  1. SAM, systolic anterior motion of mitral valve. See abbreviations in the Tables 1 and 2.