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Detekce sentinelové uzliny u časných stadií cervikálního karcinomu kombinovanou metodou s užitím nanokoloidu technecia Tc99 a patentní modři


Authors: L. Ševčík 1;  J. Klát 1;  P. Gráf 1;  P. Koliba 1;  R. Čuřík 2;  O. Kraft 3
Authors‘ workplace: Porodnicko-gynekologická klinika FN Ostrava, přednosta doc. MUDr. P. Koliba, CSc. 1;  Ústav patologie FN Ostrava, přednosta MUDr. R. Čuřík 2;  Klinika nukleární medicíny FN Ostrava, přednosta MUDr. O. Kraft, Ph. D. 3
Published in: Ceska Gynekol 2007; 72(2): 120-125
Category: Original Article

Overview

Objective:
The aim of the study was to analyse the feasibility of intraoperative sentinel lymph nodes (SLN) detection using gamma detection probe and blue dye in patients undergoing radical hysterectomy for treatment of early stage of cervical cancer.

Desing:
Prospective case observational study.

Methods:
In the period from May 2004 to February 2006 77 patients with early stage of cervical cancer who underwent a radical surgery were included into the study. Patients were divided into three groups according to the tumour volume. First group consists of patients FIGO IA2 and FIGO IB1 with tumour diameter less than 2 cm, second group tumours FIGO IB1 with tumour diameter more than 2 cm and third group stadium IB2. SLN was detected by blue dye and Tc99. Preoperative lymphoscintigraphy was done after Tc99 colloid injection, intraoperative detection was performed by visual observation and by hand-held gamma-detection probe. SLN were histologically and immunohistochemically analysed.

Results:
A total number of 2764 lymph nodes with an average 36 and 202 SLN with an average 2.6 were identified. The SLN detection rate was 94.8% per patient and 85.1% for the side of dissection and depends on the tumor volume. SLN were identified in obturator area in 48%, in external iliac area in 15%, in common iliac and internal iliac both in 9%, in interiliac region in 8%, in praesacral region in 6% and in parametrial area in 5%. Metastatic disease was detected in 31 patients (40.2%), metastatic involvement of SLN only in 12 patients (15.6%). False negative rate was 2.6%, sensitivity and negative predictive value calculated by patient were 92.3 % and 95.7 %.

Conclusions:
Intraoperative lymphatic mapping using combination of technecium-99-labeled nanocolloid and blue dye are feasible, safe and accurate techniques to identified SLN in early stage of cervical cancer.

Key words:
cervical cancer, sentinel node, radical surgery


Labels
Paediatric gynaecology Gynaecology and obstetrics Reproduction medicine

Article was published in

Czech Gynaecology

Issue 2

2007 Issue 2

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