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. 2013 Feb 7;17(1):R26. doi: 10.1186/cc12506

Table 4.

Influence of high-voltage electrical injury according to the pathway of the electrical current (vertical vs. horizontal)

Baseline Six months


Vertical axis
(n = 17)
Horizontal axis
(n = 6)
P-value Vertical axis
(n = 16)
Horizontal axis
(n = 5)
P-value
LVEF (%) 66 ± 4 66 ± 3 0.92 64 ± 5 65 ± 5 0.60
E wave velocity (cm/sec) 84 ± 24 84 ± 13 0.96 70 ± 20 66 ± 16 0.65
A wave velocity (cm/sec) 77 ± 17 74 ± 23 0.75 75 ± 20 68 ± 15 0.49
Deceleration time (msec) 200 ± 48 198 ± 65 0.93 243 ± 70 207 ± 43 0.29
E/A ratio 1.1 ± 0.3 1.2 ± 0.4 0.44 1.0 ± 0.5 1.0 ± 0.4 0.96
Ea (cm/sec) 8.7 ± 2.6 10.9 ± 2.6 0.09 8.1 ± 2.3 7.8 ± 1.5 0.80
E/Ea ratio 10.1 ± 7.7 7.9 ± 1.4 0.08 9.1 ± 3.0 8.4 ± 1.3 0.63
Strain (%)
Longitudinal -19.0 ± 4.1 -18.7 ± 2.3 0.85 -19.2 ± 2.9 -18.5 ± 3.0 0.62
Circumferential -19.3 ± 4.3 -21.2 ± 8.3 0.47 -19.6 ± 5.8 -19.8 ± 3.6 0.95
Radial 50.9 ± 17.8 55.0 ± 15.7 0.63 46.1 ± 15.5 54.0 ± 10.5 0.30
Strain rate (1/sec)
Longitudinal -1.50 ± 0.42 -1.44 ± 0.32 0.76 -1.22 ± 0.21 -1.15 ± 0.21 0.51
Circumferential -2.08 ± 0.46 -2.52 ± 0.69 0.55 -1.82 ± 0.59 -1.45 ± 0.34 0.21
Radial 2.87 ± 1.19 2.59 ± 0.78 0.61 2.38 ± 0.95 1.98 ± 0.48 0.38

A, late transmitral filling wave; E, early transmitral filling wave; Ea, medial mitral annulus wave; LVEF, left ventricular ejection fraction.