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  • Title: Injection of (99m)Tc-labeled sulfur colloid the day before operation for breast cancer sentinel lymph node mapping is as successful as injection the day of operation.
    Author: Gray RJ, Pockaj BA, Roarke MC.
    Journal: Am J Surg; 2004 Dec; 188(6):685-9. PubMed ID: 15619484.
    Abstract:
    BACKGROUND: We investigated whether the timing of injection of (99m)Tc-labeled sulfur colloid (radiocolloid) significantly influenced the success of breast cancer sentinel lymph node (SLN) mapping. METHODS: Review of a prospective SLN database. Five hundred forty-six consecutive breast SLN mapping patients were analyzed. A dual radiocolloid/blue dye technique was used in all patients. RESULTS: The SLN identification rate was similar among those patients injected the day prior (100%) and those injected the day of operation (99%, P = 0.14). A "hot" SLN was identified in 99% of patients injected the day prior and in 97% (P = 0.17) injected the day of operation. The mean number of SLNs was greater among those injected the day prior (2.71) than among those injected the day of operation (2.33, P = 0.01). There were no differences in the rates of SLN metastases. CONCLUSIONS: Radiocolloid injection the day before operation is an acceptable and logistically advantageous technique for breast cancer SLN mapping.
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