Table 2

Details of the sentinel node procedure and groin surgery in groups 1 and 2

Use of tracer for SLN detection
 Technetium-99m+blue dye41 (77.4%)
 Technetium-99m only11 (20.7%)
 Blue dye only1 (1.9%)
Protocol for radiotracer injection (technetium-99m)
 1 day protocol*42 (80.8%)
 2 days protocol†10 (19.2%)
Amount of radiotracer (MBq), median (IQR)
 1 day protocol44 (34–120)
 2 days protocol119 (60–120)
Retrieved nodes per groin
 SLN, mean (SD)1.6 (1.0)
 IFL, mean (SD)6.0 (2.8)
  • Figures denote number (%), median (IQR), or mean (SD).

  • *Injection of radiotracer on the morning of surgery, scintigraphy 30 min after injection.

  • †Injection of radiotracer on the afternoon the day before surgery, scintigraphy 30 min after injection.

  • IFL, inguinofemoral lymphadenectomy; IQR, Interquartile range; MBq, megabecquerel; SLN, sentinel lymph node.