Table 2.
Echocardiographic variables at exercise in both groups.
| Variables | All Patients (n = 101) | G1: CR-GLS Present (n = 56 pts) |
G2: CR-GLS Absent (n = 45 pts) |
p Value |
|---|---|---|---|---|
| Peak Ao velocity exercise (m/s) | 4.9 ± 0.36 | 4.88 ± 0.38 | 4.92 ± 0.34 | 0.57 |
| Peak Ao gradient exercise (mmHg) | 102.09 ± 19.2 | 100.7 ± 18 | 103.75 ± 20.5 | 0.43 |
| Medium Ao gradient at exercise (mmHg) | 51.03 ± 9.6 | 50.5 ± 9 | 52 ± 10 | 0.4 |
| LVEF at peak exercise (%) | 69.4 ± 7.22 | 71.5 ± 5.9 | 66.8 ± 7.9 | 0.002 |
| GLS at peak exercise (%) | −20.53 ± 3 | −22.2 ± 2.8 | −18.45 ± 2.4 | <0.001 |
| E/e’ at peak exercise (cm/seg) | 15.26 ± 2.9 | 14.8 ± 3.3 | 15.7 ± 2.5 | 0.12 |
| PASP at peak exercise (mmHg) | 50.71 ± 10.9 | 50.3 ± 11.8 | 51 ± 10 | 0.74 |
| Δ LVEF (peak-rest) | 6.16 ± 4.34 | 7.3 ± 2.9 | 4.7 ± 5.3 | 0.003 |
| Δ Strain (peak-rest) | 1.74 ± 2 | 3.07 ± 0.85 | 0.08 ± 1.9 | <0.001 |
| Present CR-EF (% pts) | 77 (76.2) | 50 (89.3) | 27 (60) | 0.001 |
| Absent CR-EF (% pts) | 24 (23.8) | 6 (10.7) | 18 (40) | 0.001 |
| METS | 5.06 ± 1.7 | 5.6 ± 2 | 4.4 ± 1.1 | 0.002 |
| WATT | 92.16 ± 33.1 | 101.9 ± 35.5 | 80 ± 25 | 0.001 |
| Medium Ao gradient at exercise (mmHg) | 51.03 ± 9.6 | 50.5 ± 9 | 52 ± 10 | 0.4 |
| SBP at peak exercise (mmHg) | 168.94 ± 29.95 | 172.7 ± 32.6 | 164.2 ± 25.7 | 0.15 |
| HR at peak exercise (bpm) | 120 ± 23.3 | 125.5 ± 22.5 | 113 ± 22.6 | 0.008 |
Continuous variables are presented as mean ± SD. Categorical variables are expressed as number (percentage). LVEF = ejection fraction, GLS = global longitudinal strain, CR = contractile reserve, PASP = pulmonary systolic pressure, FBPR = flat blood pressure response, SBP = systolic blood pressure, HR = heart rate, LV = left ventricle.