. Author manuscript; available in PMC: 2014 Nov 1.

Published in final edited form as: Circ Cardiovasc Imaging. 2013 Oct 4;6(6):1001–1008. doi: 10.1161/CIRCIMAGING.112.000328

Table 1.

Baseline Characteristics of the Study Population

Variables	Value
Age (years)	43 ± 11
Heart rate (bpm)	69 ± 13
Systolic/ diastolic blood pressures (mmHg)	118 ± 14/76 ± 10
Left ventricular ejection fraction (%)	58 ± 5
Left atrial diameter (mm)	49 ± 6
Left atrial volume index (mL/m²)	52 ± 16
Transvalvular mitral peak /mean gradients (mmHg)	18 ± 8/ 10 ± 6
Mitral valve area by planimetry (cm²)	1.2 ± 0.4
Mitral valve area by pressure half-time (cm²)	1.3 ± 0.3
Pulmonary artery systolic pressure^* (mmHg)	44 ± 19
Peak systolic velocity at the tricuspid annulus (cm/s)	11 ± 2
Tricuspid annular motion (mm)	19 ± 4
Right ventricular myocardial performance index	0.3 ± 0.1
Moderate-to-severe tricuspid regurgitation (n/%)	17 (13)
Net atrioventricular compliance^† (mL/mmHg)	4.7 ± 1.3

Data are expressed as the mean value ± SD or number (percentage) of patients.

Pulmonary artery systolic pressure could not be assessed in 4 patients (3%).

^†

Compliance could not be calculated in 3 patients (2%) due to extensive calcification of mitral valve leaflets hence inability to planimeter MV area accurately.