Table 2.

E‐ and E′‐wave parameters.

ParametersNormal (n = 13)PN (n = 12)P‐values
Epeak (cm/sec)70 (16)72 (13)NS 0.76
Edur (msec)294 (26)299 (31)NS 0.66
DT (msec)200 (28)203 (32)NS 0.81
Apeak (cm/sec)55 (11)82 (16)<0.001
E/A1.3 (0.3)0.9 (0.2)<0.001
E′peak (cm/sec)14 (5)7 (1)<0.001
E/E′5.3 (1.4)10.4 (2.0)<0.001
VTI (cm)10 (3)11 (2)NS 0.67
PDF parameters
k 263 (53)254 (53)NS 0.68
c 23 (6)25 (7)NS 0.43
x o 9.2 (2.1)10.3 (2.3)NS 0.21
  • The mean values for each group are listed along with P‐value. P < 0.05 denotes statistical significance. Parentheses denote standard deviations. VTI, velocity time integral; PDF, parametrized diastolic filling.