Table 3.
Comparison of the exercise test-related variables before and after EECP with regard to the pre-EECP ejection fraction
| EF < 40% (n=11) |
EF ≥ 40% (n=23) |
|||||
|---|---|---|---|---|---|---|
| Pre EECP | Post EECP | P value | Pre EECP | Post EECP | P value | |
| Ejection fraction (%) | 27.50 ±6.98 | 28.64±6.36 | 0.059 | 49.89±4.23 | 51.74±3.49 | 0.001 |
| Exercise duration (min) | 5.41±2.44 | 8.43±2.84 | 0.001 | 6.99±2.81 | 9.58±2.63 | < 0.001 |
| Resting heart rate (bpm) | 83.36±16.82 | 82.36±19.40 | 0.573 | 74.09±11.09 | 74.30±17.06 | 0.944 |
| Peak exercise heart rate (bpm) | 107.18±12.98 | 108.82±13.93 | 0.702 | 102.00±16.37 | 105.32±14.78 | 0.370 |
| Heart rate 1 minute after exercise (bpm) | 101.73±14.64 | 99.27±17.17 | 0.555 | 92.09±12.10 | 94.22±12.33 | 0.435 |
| Heart rate 2 minutes after exercise (bpm) | 91.00±14.68 | 89.91±22.18 | 0.800 | 79.57±14.16 | 80.87±12.25 | 0.641 |
| Maximum workload (METS) | 4.05±1.09 | 5.53±1.63 | 0.005 | 4.63±1.34 | 5.71±1.86 | 0.003 |
| Heart rate recovery (bpm) | ||||||
| First minute | 4 (1-8) | 7 (6-16) | 0.066 | 10 (0-17) | 9 (5-21) | 0.455 |
| Second minute | 17 (11-23) | 18 (10-25) | 0.445 | 21 (9-33) | 28 (14-35) | 0.626 |
| Resting systolic blood pressure (mmHg) | 120.45±14.05 | 112.73±14.38 | 0.243 | 128.04±25.26 | 117.96±15.20 | 0.032 |
| Maximum systolic blood pressure (mmHg) | 127.73±15.71 | 122.73±16.49 | 0.452 | 137.83±20.93 | 138.70±18.35 | 0.791 |
*Data are presented as means±SD medians (25th and 75th percentiles).
EECP, Enhanced external counterpulsation