Right atrial function assessed by volume-derived values and speckle tracking echocardiography in patients with hypertrophic cardiomyopathy

Table 1 Clinical baseline parameters and 2D echocardiographic characteristics between HCM patients and normal subjects (mean ± SD)

Variable	Values		P Value
Variable	HCM(32)	Normal(34)
Clinical baseline parameters
Age (years)	47 ± 14	46 ± 12	0.779
Male	19 (32)	19 (34)
Heart Rate (bpm)	70 ± 11	72 ± 12	0.391
NYHA Class
I	(30)32
II	(2)32
III	(0)32
IV	(0)32
Medical treatment
β-Blockers	(27)32
Calcium channel blockers	(5)32
Disopyramide	(0)32
Diuretics	(0)32
ICD	(0)32
2D echocardiographic characteristics
LAd (mm)	42.06 ± 4.91	35.09 ± 3.38	< 0.001
IVDd (mm)	19.41 ± 4.09	9.21 ± 1.04	< 0.001
LVPWd (mm)	10.19 ± 1.15	9.21 ± 1.04	0.001
LVEF(%)	66.59 ± 6.39	65.20 ± 5.30	0.339
RVWd (mm)	2.50 ± 0.51	2.47 ± 0.51	0.815
RVd middle (mm)	29.28 ± 4.26	27.59 ± 3.02	0.066
RVd longitudinal (mm)	52.31 ± 4.40	52.02 ± 5.16	0.812
RVd basal (mm)	25.09 ± 3.44	24.62 ± 3.19	0.562
sPAP (mmHg)	20.50 ± 4.69	18.56 ± 4.44	0.090
RAd middle (mm)	37.09 ± 3.89	37.82 ± 3.83	0.445
RAd longitudinal (mm)	48.93 ± 4.43	46.74 ± 3.42	0.027
TAPSE (mm)	21.25 ± 2.06	21.94 ± 1.97	0.169
E	0.48 ± 0.12	0.57 ± 0.09	0.001
A	0.42 ± 0.09	0.40 ± 0.07	0.268
E/A	1.19 ± 0.34	1.47 ± 0.28	0.001
S′(cm/s)	10.41 ± 1.89	9.92 ± 1.42	0.234
E′ (cm/s)	−7.53 ± 2.04	−8.74 ± 1.79	0.013
A′ (cm/s)	−11.13 ± 2.20	−10.53 ± 2.37	0.289
E′/A′	0.71 ± 0.24	0.89 ± 0.34	0.016
TR grade
Absence/Slight	(30)32	(32)34
Mild	(2)32	(2)34
Moderate	(0)32	(0)34
Severe	(0)32	(0)34

Abbreviations: LAd left atrial diameter, IVDd inter-ventricle septal wall diameter in the diastole period, LVPWd left ventricular posterior wall diameter in the diastole period, LVEF left ventricular ejection fraction, RV right ventricular, RVd middle RV diameter at the middle level, RVWd RV free wall diameter, RVd longitudinal RV diameter at the longitudinal, RVd basal RV diameter at the base level, sPAP systolic pulmonary arterial pressure, RA right atrial, RAd middle RA diameter at the middle level, RAd longitudinal RA diameter at the longitudinal, TAPSE tricuspid annular plane systolic excursion, E Peak early velocities of tricuspid valve were measured by pulsed-wave Doppler, A Peak late velocities of tricuspid valve were measured by pulsed-wave Doppler, S′ peak systolic annular velocities obtained at RV lateral wall by using TDI, E′ peak early diastolic annular velocities obtained at RV lateral wall by using TDI, A′ peak late diastolic annular velocities at RV lateral wall by using TDI, TR tricuspid valve regurgitation

ISSN: 1471-2261