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. 2018 Jul 2;8:9953. doi: 10.1038/s41598-018-28246-8

Table 2.

Echocardiographicparameters.

LV EDVi (ml/m2) 48 40.6–58.6
LV ESVi (ml/m2) 24 16.9–33.0
IVS (mm) 13 12–14
RWT 0.508 0.488–0.527
LAVi (cm2/m2) 44 40.6–47.3
E/A 0.729 0.55–1.05
DT (ms) 232 215.2–248.4
E/e′(average sept + lat/2) 17 15.1–18.3
s′ septal (cm/s) 6 5.3–6.0
s′ lateral (cm/s) 6 5.0–7.4
EF (%) 61 54.7–68.1
GLS (%) −14 13.2–14.7
LVMi (g/m²) 134 127.3–139.9
LVH 73 91.2%
EstimatedsPAP 30 25–35
Systolicdysfunction (EF < 50%) 14 17%
Diastolic dysfunction (grade I/II/III) 13/47/20 16.3/58.7/25%
Stroke Volume index (ml/m2) 35 33.1–37.7
AVAi (ml/mq) 0.359 0.33–0.38
AS jet velocity (m/s) 4 4.29–4.50
Maximum pressure gradient (mmHg) 77 69.0–87.8
Mean pressure gradient (mmHg) 47 41.0–53.8
Velocity Ratio 0.202 0.19–0.21
ZVA (mmHg/mL/m2) 5 4.280–6.06
TAPSE (mm) 20 17.75–24
ACC/AHA GROUP: D1/D2/D3 62/14/4 77.5%/17.5%/5%
FLOW/GRADIENT GROUP: NF-LG/NF-HG/LF-HG/LF-LG 17/32/13/4 21%/40%/16%/4%

Note: the data are presented as number and %, mean and 95% confidence intervals if normally distributed or median and range interquartile if not normally distributed. ACC/AHA: American College of Cardiology/American Heart Association group: D1) Classical Phenotype (Vmax > 4 m/sec; MG > 40 mmHg; AVAi < 0.6 cm2/m2); D2) Classical Low Flow Low Gradient (Vmax < 4 m/sec; MG < 40 mmHg; AVAi < 0.6 cm2/m2); D3) Paradoxical Low Flow Low Gradient (Vmax < 4 m/sec; MG < 40 mmHg; AVAi < 0.6 cm2/m2, with an SVi < 35 ml/m2). FLOW/GRADIENT GROUP: NF normal flow (Svi > 35 ml/m2); LF low flow (SVi < 35 ml/m2); LG low gradient (mean pressure gradient < 40 mmHg); HG high gradient (mean pressure gradient > 40 mmHg).

AS: aortic stenosis; AVAi: aortic valve area index; DT: deceleration time; E/A: ratio of early to late diastolic mitral filing velocity (PW); EDVi: indexed end-diastolic volume; E/e′: ratio of trans-mitral early diastolic velocity (PW) to tissue early diastolic mitral annular velocity (TDI); EF: ejection fraction; ESVi: end-systolic volume indexed; GLS: global longitudinal strain; IVS: inter-ventricular septum; LAVi: indexed left atrium volume; LVMi: indexed left ventricular mass; LV: left ventricle; LVH: left ventricular hypertrophy (defined as LVMi >115 g/m2 in males or >95 g/m2 in females); sPAP systolic pulmonary artery pressure; RWT: relative wall thickness; TAPSE: tricuspid annular plane systolic excursion; ZVA: valvulo-arterial impedance.