Cervical Dysplasia and Human Papillomavirus in Women of the Republic of Sakha (Yakutia)

Maria P. Kirillina, Irina V. Kononova, Sargylana I. Sofronova, Matrena N. Mikhailova, Varvara A. Vorontsova, Elena L. Lushnikova

International Journal of Biomedicine. 2020;10(2):165-168.
DOI: 10.21103/Article10(2)_OA16
Originally published June 15, 2020.


The purpose of this study was to investigate the relation between the presence of cervical dysplasia and HPV infection in women of the Republic of Sakha (Yakutia) (RS(Y)), to analyze cytological samples for detecting the presence of pathology and the degree of cervical dysplasia, and to detect the level of HPV infection, and establish the dependence of HPV-test positivity on the presence of dysplasia and the woman’s age.
Methods and Results: Cytological material was taken from cervix uteri and cervical canal scraping from 100 patients aged between 22 and 60 years (mean age of 38.9±9.2 years).  The sample from every patient was obtained by traditional cytology and liquid-based cytology (LBC) on the automated system CellPrep Plus (Korea).  The results of LBC were interpreted under the terminology system of the Bethesda System (2015). HPV detection and typing (types 6, 11, 44, 16, 18, 26, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66, 68, 73, 82) were performed by real-time PCR using commercial test systems according to their instructions.
The analysis of cytological samples by the LBC method in women of RS(Y) revealed a high prevalence of NILM in the samples to compare with intraepithelial lesions of the cervix. Among intraepithelial lesions, LSIL was significantly more common. Positive HPV tests were observed in less than half of the cases. The vast majority of positive HPV tests were high–risk HPV types, and 16 and 51 types marked the most frequent. The positive tests for high–risk HPV types in women with NILM and intraepithelial lesions (LSIL, HSIL, ASCUS) were approximately equal. The frequency of positive tests for high–risk HPV types in women under 45 was higher than in women 46 years and older.
Conclusion: The combined use of LBC and HPV testing for high–risk HPV infection improves the effectiveness of diagnostics by reducing the amount of uninformative material and allows detecting pathological changes at an earlier stage.

human papillomavirus • cervical cancer • liquid-based cytology • squamous intraepithelial lesion
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Received May 5, 2020.
Accepted June 2, 2020.
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