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Table 3 Systolic echo parameters in the LVH and control groups

From: Midwall ejection fraction for assessing systolic performance of the hypertrophic left ventricle

Item LVH (n=30) Control (n=30) P-value
EF (%) 58.7±4.8 59.3±5.5 0.6496
Midwall EF (%) 42.8±4.4 48.1±4.1 <0.0001
Midwall FS (%) 13.4±2.8 16.1±1.5 <0.0001
Longitudinal strain (%) −12.7±2.8 −15.1±2.2 0.0006
S’ (cm/s) 7.6±1.1 9.0±1.6 0.0021
A’ (cm/s) 8.7±1.7 9.4±1.9 0.1749
E’ (cm/s) 6.7±2.1 8.7±2.4 0.0013
E/E’ 9.0±3.1 7.4±2.1 0.0148
  1. Data are shown as a number (%) or mean ± S.D. TDI = tissue Doppler imaging; EF = ejection fraction; midwall EF = midwall ejection fraction; midwall FS = midwall fractional shortening; S’ = peak systolic annular velocity; E’ = early diastolic mitral annular velocity; A’ = late diastolic mitral annulus velocity; E/E’ = ratio of E to E’. Midwall EF in the LVH group was significantly lower than that in the control group. Midwall FS and longitudinal strain were also significantly lower in the LVH group, but EF did not differ significantly between the two groups. S’ and E’ in the LVH group were lower than in the control group. E/E’ was higher significantly in the LVH group.