Differences of left ventricular systolic deformation in hypertensive patients with and without apical hypertrophic cardiomyopathy

Table 2 Comparison of standard echocardiographic parameters between hypertensive patients with and without apical hypertrophic cardiomyopathy (ApHCM)

	Hypertension with ApHCM	Hypertension without ApHCM	p
Interventricular septum thickness (mm)	12.9 ± 2.7	10.2 ± 2.3	0.007
Posterior wall thickness (mm)	10.8 ± 2.6	8.3 ± 1.9	0.008
Apex thickness (mm)	23.8 (22.7, 29.9)	8.6 (7.8, 9.2)	< 0.001
LV end-diastolic diameter (mm)	50 ± 5	50 ± 4	0.975
LV end-systolic diameter (mm)	28 ± 8	31 ± 3	0.255
LV end-diastolic volume index (ml/m²)	29 ± 12	38 ± 16	0.086
LV end-systolic volume index (ml/m²)	9 ± 4	12 ± 7	0.201
Stroke volume index (ml/m²)	20 ± 9	26 ± 10	0.083
LV ejection fraction (%)	68 ± 8	69 ± 8	0.697
LA end-systolic diameter (mm)	47 ± 6	39 ± 5	0.001
Mitral E/A ratio	1.00 ± 0.50	0.82 ± 0.20	0.226
Sm (cm/s)	5.6 ± 1.5	6.9 ± 1.5	0.030
Myocardial performance index	0.76 ± 0.31	0.56 ± 0.12	0.039
IVRT (ms)	128 ± 32	100 ± 21	0.012
IVCT (ms)	68 ± 22	65 ± 18	0.681
E/Em	15.1 ± 4.3	13.0 ± 2.6	0.128
LV diastolic function, grade			0.045
Normal	0	2
Impaired relaxation, I	10	12
Pseudonormalized filling, II	4	0
Restrictive filling, III	0	0

Data are presented as means ± SD, number, or median (25th, 75th percentiles).
A = atrial contraction; D = diastolic; E = rapid filling; Em = mitral annular early diastolic velocity; IVRT = isovolumic relaxation time; IVCT = isovolumic contraction time; LA = left atrial; LV = left ventricular; Sm = mitral annular peak systolic velocity.

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