Table 4:
Echocardio-Doppler parameters | Overall Group | Stage 0 | Stage 1 | Stage 2 | Stage 3 | P-value |
---|---|---|---|---|---|---|
LVEF(%) | 55 (52–58) |
58 (53–58) |
55 (53–62) |
60 (53–64) |
54 (52–57) |
0.21 |
E/A | 0.95 (0.86–1.1) |
1.07 (1.00–1.15) |
0.96 (0.88–1.03) |
0.99 (0.88–1.10) |
0.87 (0.80–1.22) |
0.10 |
Rest E/e’ | 7.5 (5.9–9.4) |
7.6 (5.7–8.3) |
7.0 (6.0–8.1) |
7.4 (6.2–10.7) |
11.1 (5.7–16.3) |
0.21 |
Stress e’ (cm/s) | 13.0 (10.9–14.9) |
14.0 (12.4–17.7) |
13.6 (11.1–16.0) |
11.6 (6.6–14.6) |
11.6 (8.6–13.1) |
0.06 |
Stress E/e’ | 6.9 (5.6–10.2) |
5.6 (4.8–7.4) |
6.5 (5.2–8.6) |
8.7 (6.0–12.8) |
9.8 (6.6–19.6) |
0.01 |
Abbreviations: LVEF=left-ventricular ejection fraction; E/A=ratio of peak early (E) velocity flow to late (A) peak velocity flow in diastole; E/e’= ratio of early transmitral E wave velocity (E) to early mitral annulus velocities (e’) by tissue Doppler averaged between the lateral and septal.