Table 2.

Comparison of parameters under 2D conventional echocardiography in four groups of subjects (mean number ± standard deviation).

Projects	Number of cases (pcs)	LAD-ap (mm)	E peak (cm/s)	A-peak (cm/s)	E/A
Control group	30	27.0 ± 2.2	90.0 ± 9.8	70.0 ± 5.0	1.3 ± 0.1
Hypertension during pregnancy	20	28.5 ± 2.1	79.7 ± 5.2*	73.5 ± 5.1	1.1 ± 0.2*
Pre-eclampsia (mild)	15	30.2 ± 2.1**	79.3 ± 4.5*	75.9 ± 4.8*	1.1 ± 0.2*
Pre-eclampsia (severe)	10	33.1 ± 1.4**	77.7 ± 1.6**	78.2 ± 3.3**	0.9 ± 0.1**

Compared with control group *P < 0.05, **P < 0.01.