Table 1.

Literature review of Sentinel node detection in vulvar cancers (Only Studies with more than 20 patients were presented)

Author	Year	Detection method	Tracer	No. of cases	Groins dissected (n)	Detection rate (%)	Positive SN (n)	False negative SN (n)	NPV (%)	Ultra-staging
Levenback [14]	1995	BD	-	21	29	66	5	0	100	(-)
De Hullu [16]	1998	ILS+ BD	Nanocolloid	59	107	100	24	0	100	(+)
Ansink [20]	1999	BD	-	51	93	56	9	2	95	(-)
Levenback [19]	2001	BD	-	52	76	88	10	2	100	(+)
Sideri [27]	2000	ILS	Colloid albumin	44	77	100	13	0	100	(-)
De Cicco [28]	2000	ILS	Colloid albumin	37	55	100	8	0	100	(-)
Sliutz [29]	2002	ILS+ BD	Microcolloidal albumin	26	46	100	9	0	100	(+)
Puig-Tintore [18]	2003	ILS + BD	Nanocolloid	26	37	96	8	0	100	(+)
Moore [30]]	2003	ILS + BD	Sulfur colloid	21	31	100	7	0	100	(+)
Hauspy [31]	2007	ILS+ BD	Sulfur colloid	41	68	95	18	0	96	(+)

Abbreviations ; BD: blue dye method, ILS: intraoperative lymphoscintigraphy, NPV: negative predictive value, SN: sentinel node, (+): yes, (-):No,