Table 4.
Heart rate variability
| Case | Averaged heart rate (bpm) | Before CIRT | After CIRT | Variation of LF/HF before and after CIRT | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Before CIRT | After CIRT | Daytime | Nighttime | Daytime | Nighttime | ||||||||||
| LF (ms2) | HF (ms2) | LF/HF | LF (ms2) | HF (ms2) | LF/HF | LF (ms2) | HF (ms2) | LF/HF | LF (ms2) | HF (ms2) | LF/HF | Day/Night | |||
| 1 | 74 | 97 | 250 | 48 | 5.23 | 573 | 284 | 2.02 | 154 | 21 | 7.35 | 58 | 20 | 2.93 | ↑/↑ |
| 2 | 71 | 64 | 1,532 | 3,562 | 0.43 | 195 | 106 | 1.85 | 368 | 300 | 1.23 | 108 | 143 | 0.76 | ↑/↓ |
| 3 | 78 | 67 | 140 | 31 | 4.47 | 352 | 72 | 4.88 | 104 | 31 | 3.31 | 280 | 290 | 0.97 | ↓/↓ |
| 4 | 63 | 76 | 125 | 24 | 5.30 | 99 | 32 | 3.08 | 212 | 118 | 1.79 | 135 | 142 | 0.95 | ↓/↓ |
| 5 | 66 | 70 | NA | NA | NA | NA | NA | NA | 117 | 23 | 5.10 | 243 | 42 | 5.84 | NA |
| 6 | 80 | 93 | 19 | 4 | 4.49 | 18 | 5 | 3.31 | 12 | 4 | 3.32 | 16 | 5 | 3.20 | ↓/→ |
| 7 | 99 | 78 | NA | NA | NA | NA | NA | NA | 47 | 47 | 0.99 | 61 | 68 | 0.89 | NA |
| 8 | 70 | 72 | 65 | 82 | 0.80 | 71 | 65 | 1.09 | 46 | 56 | 0.83 | 74 | 70 | 1.06 | →/→ |
CIRT, carbon ion radiation therapy; LF, low‐frequency power, HF, high‐frequency power; NA, not available.