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Minerva Ginecologica 2003 June;55(3):259-62

language: English

Sentinel Lymph Node (SLN) laparoscopic assessment early stage in endometrial cancer

Gargiulo T., Giusti M., Bottero A., Leo L., Brokaj L., Armellino F., Palladin L.


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Background. The aim of the study was to demonstrate the validity of sentinel lymph node (SLN) detection after injection of radioactive isotope and patent blue dye in patients affected by early stage endometrial cancer. The second purpose was to compare radioactive isotope and patent blue dye migration.
Methods. Between September 2000 and May 2001, 11 patients with endometrial cancer FIGO stage Ib (n=10) and IIa (n=1) underwent laparoscopic SLN detection during laparoscopic assisted vaginal hysterectomy with bilateral salpingo-oophorectomy and pelvic bilateral systematic lymphadenectomy. Radioactive isotope injection was performed 24 ours before surgery and blue dye injection was performed just before surgery in the cervix at 3, 6, 9 and 12 hours. A 350 mm laparoscopic g-scintiprobe MR 100 type 11, 99mTc setted (Pol.Hi.Tech.), was used intraoperatively for detecting SLN.
Results. Seventeen SLN were detected at lymphoscintigraphy (6 bilateral and 5 monolateral). At laparoscopic surgery the same locations were found belonging at internal iliac lymph nodes (the so called ''Leveuf-Godard'' area, lateral to the inferior vescical artery, ventral to the origin of uterine artery and medial or caudal to the external iliac vein). Fourteen SLN were negative at histological analysis and only 3 positive for micrometastasis (mean SLN sections = 60. All the other pelvic lymph nodes were negative at histological analysis. The same SLN locations detected with g-scintiprobe were observed during laparoscopy after patent blue dye injection.
Conclusions. If the sensitivity of the assessment of SLN is confirmed to be 100%, this laparoscopic approach could change the management of early stage endometrial cancer. The clinical validity of this technique must be evaluated prospectively.

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