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Table 2 Comparisons of clinical and echocardiographic parameters among morphologically classified subgroups

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

  Pure sigmoid septum Sigmoid septum with BSH Prominent PM Concentric remodelling P
(n = 14) (n = 85) (n = 20) (n = 49)
Age, years 75.4 ± 9.5 72.3 ± 9.7 65.6 ± 9.7 69.9 ± 12.9 0.032
Women, n (%) 11 (79) 51 (60) 10 (50) 26 (53) 0.310
Hypertension, n (%) 14 (100) 70 (82) 16 (80) 36 (74) 0.158
Diabetes, n (%) 8 (57) 24 (28) 6 (30) 16 (33) 0.199
SBP, mmHg 124.9 ± 15.0 131.2 ± 21.0 125.3 ± 17.5 127.8 ± 22.7 0.550
DBP, mmHg 69.8 ± 10.2 72.3 ± 11.6 68.1 ± 12.9 71.0 ± 12.1 0.546
LVEDD, mm 38.7 ± 3.5 39.6 ± 4.2 39.7 ± 4.1 38.8 ± 5.7 0.742
LVESD, mm 25.4 ± 2.5 25.1 ± 3.0 25.8 ± 4.2 24.4 ± 3.6 0.361
LVEDD/BSA, mm/m2 24.9 ± 3.0 24.7 ± 3.1 22.9 ± 2.3 23.5 ± 3.1 0.028
LVESD/BSA, mm/m2 16.3 ± 1.8 15.6 ± 2.1 14.8 ± 2.0 14.7 ± 2.1 0.023
LV ejection fraction, % 66.9 ± 4.5 69.2 ± 5.7 67.9 ± 6.7 69.7 ± 5.4 0.298
Angle at end-systole, ° 166.4 ± 14.6 161.0 ± 12.1 164.2 ± 10.7 162.4 ± 10.7 0.356
Angle at end-diastole, ° 156.7 ± 13.4 151.3 ± 12.1 155.4 ± 12.5 151.7 ± 12.3 0.300
BST, mm 13.9 ± 1.1 18.3 ± 2.1 14.9 ± 1.4 17.4 ± 2.5 <0.001
LVMI, g/m2 74.4 ± 16.7 92.1 ± 25.3 77.2 ± 13.8 92.6 ± 30.2 0.012
LA volume index, ml/m2 27.3 ± 8.3 27.0 ± 13.0 21.9 ± 5.9 24.1 ± 8.4 0.176
E/e’ 14.6 ± 5.4 14.3 ± 4.9 10.9 ± 3.3 14.5 ± 5.6 0.042
S’, cm/s 8.1 ± 2.0 8.3 ± 2.0 10.0 ± 3.1 7.8 ± 2.0 0.004
Latent DLVOTO, n (%) 14 (100) 16 (78) 17 (85) 38 (78) 0.227
LVOT PG resting , mmHg 14.8 ± 7.0 23.2 ± 23.1 17.5 ± 13.1 21.6 ± 18.0 0.393
LVOT PG Valsalva , mmHg 43.2 ± 11.8 47.4 ± 25.1 46.2 ± 13.7 47.4 ± 20.4 0.919
ΔPG, mmHg 28.4 ± 16.3 29.5 ± 18.8 30.6 ± 12.3 29.4 ± 18.0 0.988
LVESWS, g/cm 53.9 ± 10.4 51.9 ± 14.1 51.1 ± 14.3 44.5 ± 9.8 0.011
  1. DLVOTO, dynamic left ventricular outflow tract obstruction; See abbreviations in Table 1.