Time after irradiation | ||||
Parameter | Before irradiation | 3 mo | 6 mo | 12 mo |
Left ventricular ejection fraction (%) | ||||
Control group | 59.6 ± 5.2 | 58.9 ± 3.0 | 59.3 ± 4.1 | 57.4 ± 3.3 |
Irradiation group | 58.9 ± 5.6 | 56.4 ± 4.0 | 50.0 ± 8.1 | 47.2 ± 6.7 |
P | 0.808 | 0.227 | 0.016 | 0.002 |
End-diastolic volume (mL) | ||||
Control group | 23.4 ± 2.8 | 23.4 ± 2.2 | 24.3 ± 2.3 | 22.8 ± 3.2 |
Irradiation group | 23.6 ± 2.6 | 23.9 ± 4.2 | 23.3 ± 3.6 | 26.5 ± 2.5 |
P | 0.923 | 0.816 | 0.952 | 0.014 |
End-systolic volume (mL) | ||||
Control group | 11.1 ± 2.1 | 11.2 ± 1.5 | 10.3 ± 1.7 | 10.4 ± 2.1 |
Irradiation group | 10.4 ± 2.0 | 10.6 ± 4.7 | 13.4 ± 2.2 | 14.1 ± 2.0 |
P | 0.490 | 0.491 | 0.01 | 0.001 |