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One‐step nucleic acid amplification vs ultrastaging in the detection of sentinel lymph node metastasis in endometrial cancer patients
Author(s) -
Kosťun Jan,
Pešta Martin,
Sláma Jiří,
Slunéčko Robert,
Vlasák Pavel,
Bouda Jiří,
Novotný Zdeněk,
Topolčan Ondřej,
Kučera Radek,
Kulda Vlastimil,
Houfková Kateřina,
Berezovskiy Denis,
Bartáková Alena,
Presl Jiří
Publication year - 2019
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.25322
Subject(s) - medicine , concordance , stage (stratigraphy) , sentinel lymph node , endometrial cancer , lymph node , nucleic acid , metastasis , radiology , sentinel node , lymph , nuclear medicine , cancer , pathology , breast cancer , paleontology , biochemistry , chemistry , biology
Background and Objectives Utilisation of the one‐step nucleic acid amplification (OSNA) molecular biology method for the detection of the metastatic involvement of sentinel lymph nodes (SLNs) in endometrial cancer (EC) patients. A comparison with histopathological ultrastaging and a description of the clinical consequences. Methods Surgically treated EC patients underwent detection of SLNs. Nodes greater than 5 mm were cut into sections 2‐mm thick parallel to the short axis of the node. Odd sections were examined according to the OSNA method, while even ones according to an appropriate ultrastaging protocol. Nodes less than or equal to 5 mm were cut into halves along the longitudinal axis with one half examined according to the OSNA method and the other half by ultrastaging. Results Fifty‐eight patients were included and 135 SLNs were acquired. Both ultrastaging and OSNA agreed on 116 results. According to the OSNA method, 20.69% more patients were classified into International Federation of Gynecology and Obstetrics (FIGO) stage III. When comparing the results of the OSNA method to the conclusions of ultrastaging as a reference method, sensitivity of 90.9%, specificity of 85.5% and concordance of 85.9% were attained. Conclusions The results of the OSNA method showed a higher frequency of detection of micrometastases and included 20.69% more patients into FIGO stage III.