Table 1 Sentinel lymph node biopsy results
| Â | Number of patients (%) | ||
|---|---|---|---|
| Â | methylene blue (n = 45) | dual-agent (n = 45) | In total (n = 84) |
Overall success in identification of SLN | 39 (86.7%) | 45 (100%) | 84 (93.3%) |
Mean No. of SLN in identified (range) | 2.7 (1-7) | 5.4 (3-10) | 4.1 |
No. of patients with positive SLN | 21 (53.8%) | 24 (53.3%) | 45 (53.6%) |
No. of patients with negative SLN | 18 (46.2%) | 21 (46.7%) | 39 (46.4%) |
Mean No. of lymph nodes examined | 21.3 | 22.4 | 21.9 |
No. of patients with positive lymph nodes | 28(71.8%) | 27(60.0%) | 55 (65.5%) |
Positive lymph nodes only in NSLN | 7(25.0%) | 3(11.1%) | 10 (20.0%) |
False negative rate | 38.9% | 14.3% | 25.6% |
Accuracy | 82.1% | 93.3% | 88.1% |