Table 1.
Baseline demographic and radiotherapy treatment parameters for left-sided breast cancer patients by treatment cohort
| Characteristics | WBRT (n = 11) (%) |
B/CWRT + RNI (n = 9) (%) |
|---|---|---|
| Median age (years), range | 47 (39–54) | 51 (34–69) |
| AJCC Stage | ||
| DCIS | 3 (27) | 0 (0) |
| I | 5 (45) | 0 (0) |
| II | 3 (27) | 5 (55) |
| III | 0 (0) | 4 (44) |
| ER/PR positive (for invasive disease) | 7/8 (88) | 7/9 (78) |
| HER 2+ (for invasive disease) | 2/8 (25) | 2/9 (22) |
| Surgery | ||
| Breast conserving | 11 (100) | 5 (56) |
| Mastectomy | 0 (0) | 4 (44) |
| RT boost to seroma | 4 (36) | 2 (22) |
| RT to internal mammary nodes | 0 (0) | 9 (100) |
| Breast/Chest wall RT dose | ||
| (Gy/# fraction) | ||
| 40/16 | 0 (0) | 2 (22) |
| 42.5/16 | 10 (91) | 4 (44) |
| 45/25 | 0 (0) | 1 (11) |
| 50/25 | 1 (9) | 2 (22) |
| Supraclavicular nodal RT dose | ||
| (Gy/# fraction) | ||
| 37.5/16 | N/A | 6 (67) |
| 45/25 | N/A | 3 (33) |