Diastolic wall strain: a simple marker of abnormal cardiac mechanics

Table 3 Correlation of diastolic wall strain with systolic and diastolic echocardiographic parameters in HyperGEN

Echocardiographic parameter	Correlation coefficient	P-value
Systolic indices
Global radial strain, %	0.07	0.002
Global circumferential strain, %	0.07	0.004
Global longitudinal strain, %	0.15	<0.001
Ejection fraction, %	0.03	0.19
Midwall shortening, %	0.56	<0.001
Diastolic indices
e’ velocity, cm/s	0.23	<0.001
E/e’ ratio†	-0.07	0.03
Isovolumic relaxation time, ms	-0.19	<0.001
E/A ratio†, ‡	0.16	0.001
Early mitral inflow deceleration time, ms	-0.05	0.07
EDV₂₀, mL*	-0.001	0.97

*EDV ₂₀ = left ventricular (LV) end-diastolic volume at an idealized LV end-diastolic pressure of 20 mmHg; †E = Early mitral inflow velocity; ‡A = Late (atrial) mitral inflow velocity.

ISSN: 1476-7120