Table 4: Pre- and post-surgical

echocardiographic measurements

in patients with mechanical valve prosthesis.

Study measurements

Mean ± SD

p

LVEF (%)

0.0001

Pre-surgical

48.91 ± 15.171

Post-surgical

58.04 ± 13.210

LV mass (g)

0.0001

Pre-surgical

303.26 ± 98.711

Post-surgical

227.43 ± 69.290

LV mass index (g/m2)

0.0002

Pre-surgical

173.61 ± 47.214

Post-surgical

123.61 ± 35.863

RWT

0.0001

Pre-surgical

0.559 ± 0.1126

Post-surgical

0.440 ± 0.0870

Septum wall (mm)

0.0001

Pre-surgical

14.41 ± 2.146

Post-surgical

12.04 ± 2.383

Posterior wall (mm)

0.0001

Pre-surgical

14.00 ± 3.580

Post-surgical

10.91 ± 1.756

PASP (mmHg)

0.0001

Pre-surgical

49.96 ± 19.848

Post-surgical

32.57 ± 17.671

RWT = relative wall thickness.

LV = left ventricle.

LVEF = left ventricular ejection fraction.

PASP = pulmonary arterial systolic pressure.

SD = standard deviation.