TABLE 2.
Details of head and neck sites treated with HFRT.
| Characteristic | Entire cohort (n=163), N (%) | Intact tumors (n=62), N (%) |
|---|---|---|
| Treated Sites | ||
| Neck | 55 (34) | 22 (36) |
| Sinonasal | 34 (21) | 9 (15) |
| Skin | 29 (18) | 10 (16) |
| Parotid | 16 (10) | 6 (10) |
| Orbit | 7 (4) | 6 (10) |
| Mandible | 5 (3) | 3 (5) |
| Ear | 4 (2) | 2 (3) |
| Oral cavity | 4 (2) | 0 (0) |
| Nasopharynx | 3 (2) | 2 (3) |
| Oropharynx | 3 (2) | 0 (0) |
| Hypopharynx | 1 (0.6) | 1 (2) |
| Maxilla | 1 (0.6) | 0 (0) |
| Thyroid | 1 (0.6) | 1 (2) |
| PTV Treated, cc, median (range) | 112 (8 – 606cc) | |
| Peri-radiotherapy chemotherapy | ||
| None | 32 (52) | |
| Yes, Before RT only | 9 (15) | |
| Yes, Before, During, After RT | 8 (13) | |
| Yes, After RT only | 3 (5) | |
| Yes, Before and After RT only | 9 (15) | |
| Months received, median (range) | 6.1 (1.8 – 11.4) | |
| RT Doses Received | ||
| 30Gy in 5 fx (6Gy per fx) | 27 (44) | |
| 36Gy in 6 fx (6Gy per fx) | 11 (18) | |
| 30Gy in 3 fx (10Gy per fx) | 10 (16) | |
| 24Gy in 3 fx (8Gy per fx) | 4 (6) | |
| 25Gy in 3 fx (5Gy per fx) | 3 (5) | |
| 27Gy in 3 fx (9Gy per fx) | 2 (3) | |
| 36Gy in 3 fx (12Gy per fx) | 1 (2) | |
| 48Gy in 4 fx (12Gy per fx) | 1 (2) | |
| 24Gy in 1 fx (24Gy per fx) | 1 (2) | |
| 20Gy in 2 fx (10Gy per fx) | 1 (2) | |
| 18Gy in 3 fx (6Gy per fx) | 1 (2) | |
Abbreviations: HFRT, hypofractionated radiotherapy. RT, radiation therapy. Gy, Gray. Fx, fractions. PTV, planning target volumes.