466. Is sentinel node excision under local anaesthetic useful in planning breast cancer surgery?

Abstract

S S177 authors of the present study in our hospital. Of these 630 patients, 529 patients underwent SLNB during their surgery, along with mastectomy or lumpectomy. We performed SLNB using a blue dye in 83 patients, a combination of blue dye and radioisotope in 341 patients and a combination of blue dye and SPECT in 105 patients. We did not distribute the patients intentionally; the methods were chosen by circumstances in our hospital on the basis of the delivery of technetium or the rejection of SPECT by the patients. We evaluated each method using the number of lymph nodes resected in each surgery and the number of patients with metastasis. Result: The mean number of SLNs detected using each method is as follows: 1.56 using only the blue dye, 1.62 using a combination of the blue dye and radioisotope and 1.58 using a combination of the blue dye and SPECT. The numbers of patients who had metastasis in their SLNs in each group were 12 (9.2%), 55 (9.9%) and 22 (11.4%) respectively. The percentage of patients who underwent lymphadenectomy of nodes not identified by dye staining or radioisotope spots were 48.2%, 41.1% and 25.7% respectively. There were no significant differences in surgical time, bleeding or other complications among the groups. Conclusions: SPECT had a significant impact, resulting in the resection of fewer lymph nodes among the three groups. We conclude that SPECT may be beneficial for SLNB by reducing the number of lymph nodes that we resect during the surgeries.