Table 1 Clinicopathologic characteristics of 460 nipple-sparing mastectomy procedures
N = 460 | |
|---|---|
Age, year | 48.3 ± 9.1 |
< 40 | 75 (16.3) |
≧ 40, < 60 | 329 (71.5) |
≧ 60 | 56 (12.2) |
Location | |
Left | 221 (48.1) |
Right | 239 (51.9) |
BMI (body mass index) | 23.7 ± 3.7 |
< 18 | 19 (4.1) |
18–24 | 271 (58.9) |
> 24 | 170 (37.0) |
Surgical methods | |
Conventional NSM | 174 (37.8) |
Endoscopic-assisted NSM | 195 (42.4) |
Robotic-assisted NSM | 91 (19.8) |
Specimen size, g (NA = 48) | 327.1 ± 184.5 |
< 180 | 66 (16.01) |
180–320 | 173 (41.99) |
320–450 | 93 (22.57) |
> 450 | 80 (19.41) |
Surgical ALN staging method (NA = 46) | |
SLNB | 298 (71.9) |
SLNB + ALND | 85 (20.6) |
ALND | 31 (7.5) |
Tumor size, cm (NA = 87) | 2.5 ± 2.2 |
ALN metastasis on pathology (NA = 44) | |
N0 | 290 (69.7) |
N1 | 96 (23.1) |
N2 | 24 (5.8) |
N3 | 6 (1.4) |
Stage (NA = 64) | |
0 | 87 (21.9) |
I | 107 (27.1) |
II | 157 (39.7) |
III | 44 (11.1) |
IV | 1 (0.2) |
ER (NA = 76) | |
Positive | 320 (83.3) |
Negative | 64 (16.7) |
PR (NA = 78) | |
Positive | 270 (70.7) |
Negative | 112 (29.3) |
HER-2 (NA = 131) | |
Positive | 80 (24.3) |
Negative | 249 (75.7) |
Ki-67 (NA = 189) | |
≦ 14 | 139 (51.3) |
> 14 | 132 (48.7) |
Pathology (NA = 3) | |
DCIS | 94 (20.6) |
IDC | 261 (57.1) |
ILC | 16 (3.5) |
LCIS | 3 (0.6) |
Other | 83 (18.2) |
Operation time | 224.2 ± 124.3 |
Reconstruction | |
Yes | 383 (83.3) |
No | 77 (16.7) |
Complication | |
Yes | 102 (22.2) |
No | 358 (77.8) |
Chemotherapy (NA = 31) | |
Yes | 174 (40.6) |
No | 255 (59.4) |
Radiotherapy (NA = 31) | |
Yes | 116 (27.1) |
No | 313 (72.9) |
Recurrence | |
Yes | 37 (8) |
No | 423 (92) |
Metastasis | |
Yes | 30 (6.5) |
No | 430 (93.5) |
Follow-up time (time since surgery) month | 42.4 ± 32.5 |