Table 4.

The peak segmental longitudinal strain rate between preoperative and postoperative ($\overline{x}\pm \mathrm{s}$)

Segmental LV wall		Peak longitudinal systolic strain rate (S−1)			Peak longitudinal early-diastolic strain rate(S−1)			Peak longitudinal late-diastolic strain rate (S−1)
		Preoperative	Postoperative	P-value	Preoperative	Postoperative	P-value	Preoperative	Postoperative	P-value
Apical 4-CH view	Lateral	−3.16 ± 1.19	−2.16 ± 1.27	<0.001	3.51 ± 2.45	1.82 ± 1.77	0.001	4.61 ± 2.58	2.65 ± 2.15	<0.001
	Septum	−2.82 ± 1.27	−2.40 ± 1.25	0.100	2.61 ± 1.59	2.36 ± 1.76	0.417	3.45 ± 1.87	2.67 ± 1.71	0.023
Apical 3-CH view	Anteroseptum	−3.12 ± 1.32	−2.11 ± 1.23	<0.001	2.95 ± 1.72	1.85 ± 1.49	0.004	3.04 ± 1.65	1.93 ± 1.38	0.005
	Posterior	−3.53 ± 1.58	−2.27 ± 1.19	<0.001	3.31 ± 1.94	2.20 ± 1.58	0.006	4.04 ± 1.69	2.58 ± 1.47	<0.001
Apical 2-CH view	Anterior	−2.97 ± 1.27	−2.06 ± 1.25	0.003	3.54 ± 2.15	1.50 ± 2.21	<0.001	4.53 ± 2.39	2.26 ± 1.72	<0.001
	Inferior	−3.39 ± 1.24	−2.58 ± 1.43	0.001	3.35 ± 1.99	2.25 ± 1.89	0.005	4.84 ± 2.46	3.30 ± 2.18	0.001