Table 2 The results of SNB
Group | Total | A | B | C | D | Kruskal-Wallis test | |
|---|---|---|---|---|---|---|---|
Cases | 62 | 13 | 8 | 26 | 15 | p-Value | |
Time from injection to removal of the SLN | (mean) | 79.9 | 71.7 | 88.8 | 83.1 | 76.3 | 0.1048 |
(range) | 45 ~ 120 | 45 ~ 95 | 70 ~ 120 | 55 ~ 110 | 50 ~ 100 | ||
SLN detection by RI method | Success | 59 | 13 | 6 | 25 | 15 | 0.0361* |
Failure | 3 | 0 | 2 | 1 | 0 | ||
Lymph node retrieval rate (nodes) | Overall | 3.0 | 3.0 | 3.3 | 2.5 | 3.5 | 0.5524 |
RI method | 2.0 | 2.3 | 1.5 | 1.8 | 2.5 | 0.7357 | |
SPIO method | 2.9 | 3.0 | 3.3 | 2.5 | 3.4 | 0.5524 | |
The highest count of resected SLN (RI) | (mean) | 839.4 | 350.8 | 231.3 | 538.5 | 2108.7 | 0.2891 |
(range) | 0 ~ 21,500 | 70 ~ 1100 | 0 ~ 800 | 0 ~ 4000 | 40 ~ 21,500 | ||
The highest count of resected SLN (SPIO) | (mean) | 3.03 | 2.18 | 2.81 | 2.96 | 4.02 | < 0.0001 |
(range) | 1.5 ~ 11.0 | 1.5 ~ 3.5 | 2.0 ~ 4.5 | 2.0 ~ 4.0 | 2.5 ~ 11.0 | ||
Metastasis of SLN | None | 50 | 12 | 6 | 18 | 14 | 0.3889* |
Micrometastasis | 2 | 0 | 0 | 2 | 0 | ||
Macrometastasis | 10 | 1 | 2 | 6 | 1 |