Table 5

Analysis of virtual protocols derived from protocol A

A, protocol A; ITC, isolated tumour cells; VP3–6, virtual protocols examining only every 3rd, 4th, 5th, and 6th level of the sentinel lymph nodes (SLNs) from group A, respectively.
Number of patients with involved SLNs detected7472707069
Number of ITC undetected1433
Number of micrometastases undetected1012
Number of macrometastases undetected0000
Number (%) of patients upstaged19 (28)17 (25)15 (22)15 (22)14 (21)