Table 2.
Changes in LVEF and heart rate fluctuation
| Variables | Control group (n = 10) | Recovery group (n = 10) | Between-group P value |
|---|---|---|---|
| LVEF, % | |||
| Baseline | 72.2% (0.01) | 66.2% (0.01) | 0.007 |
| Change at PO 1 mon | − 1.2 (1.07) | − 0.2 (2.13) | 0.680 |
| Change at PO 3 mon | − 1.7 (1.07) | 2.4 (1.77) | 0.063 |
| Change at PO 6 mon | 4.2 (1.34) | 5.5 (1.73) | 0.002 |
| Mean rHRI, beat/min2 | |||
| Baseline | 4.3 (0.73) | 3.9 (0.40) | 0.880 |
| Change at PO 1 mon | − 0.52 (0.33) | − 0.59 (0.35) | 0.893 |
| Change at PO 3 mon | 0.21 (0.34) | − 0.50 (0.70) | 0.378 |
| Change at PO 6 mon | − 0.47 (0.37) | − 1.21 (0.49) | 0.241 |
| Mean rHRR, beat/min2 | |||
| Baseline | 3.9 (0.50) | 3.8 (0.44) | 0.913 |
| Change at PO 1 mon | 0.63 (0.34) | − 0.07 (0.30) | 0.137 |
| Change at PO 3 mon | 0.03 (0.54) | 0.47 (0.30) | 0.483 |
| Change at PO 6 mon | − 0.13 (0.46) | 1.45 (0.42) | 0.020 |
LVEF left ventricular ejection fraction, rHRI rate of increase in heart rate, rHRR rate of recovery in heart rate, PO postoperative