Table 2 Echocardiography measurements at rest

LVIDd (cm)

4.7 ± 0.6

4.3 ± 0.6

LVIDs (cm)

3.2 ± 0.8

2.7 ± 0.5

LV end-diastolic volume (mL)

102 ± 25

72 ± 18*

LV end-systolic volume (mL)

38 ± 10

30 ± 10

IVSd (cm)

0.9 ± 0.3

1.9 ± 0.4*

PWd (cm)

1.0 ± 0.3

1.2 ± 0.4

LVEF (%)

63 ± 7

72 ± 8*

Stroke volume (mL)

71 ± 10

80 ± 25

Stroke volume index (mL/m²)

34 ± 11

38 ± 11

Cardiac output (L/min)

4.9 ± 0.7

4.9 ± 1.2

Resting LVOT gradient (mm Hg) [IQR]

4 [3–6]

26 [8–52]*

LV stroke work index (g/m)

42 ± 10

98 ± 65*

LV myocardial work index (g/m/min)^a

2870 ± 855

6014 ± 3720*