The success rate was 99% with 1% Lymphazurin and 97% with 10% fluorescein.
The failure rate was 1% with 1% Lymphazurin and 3% with 10% fluorescein
The accuracy rate was 95.8% with 1% Lymphazurin and 93.1% with 10% fluorescein.
The skip metastasis rate was 4.2% with 1% Lymphazurin and 6.9% with 10% fluorescein.
The number of SLNs per patient was 2.5 with 1% Lymphazurin and 2.3 with 10% fluorescein.
Occult micrometastases were found in 5 patients with both interventions.
Of the 301 SLNs, 31 (10%) were identified solely by 1% Lymphazurin and only 4 (1.3%) were detected solely by 10% fluorescein.
Of the 31 SLNs detected solely by 1% Lymphazurin, 32.3% (10 of 31) were histologically positive for metastases. None of the 4 SLNs detected solely by 10% fluorescein were histologically positive for nodal metastases.
The remaining 266 SLNs were detected concordantly by both tracers, and had a histological positivity rate of 19.9% (53 of 266).
The diagnosis of invasive carcinoma was established in 100 of the 120 patients, while the remaining 20 patients had in situ disease.
No adverse reactions were observed.
None of the differences in clinical outcomes reached statistical significance.