Introduction of liquid-based cytology and human papillomavirus testing in cervical cancer screening in Luxembourg

Diagn Cytopathol. 2017 May;45(5):384-390. doi: 10.1002/dc.23678. Epub 2017 Mar 1.

Abstract

Background: In 2014, liquid-based cytology with HPV triage replaced conventional cytology. The aim of our study was to compare conventional and liquid-based cytology (LBC), estimate the prevalence of abnormal cervical cytology and high risk HPV (hrHPV) infection and their correlation, among screened women in Luxembourg.

Methods: Between the first January 2013 and 31st December 2015, 315,868 cervical samples from 150,815 women (mean age 42.2 years) were investigated by the national cytology laboratory. Slides were prepared and screened according to European Guidelines. All cytological results were classified according to the Bethesda 2001 system terminology.

Results: The prevalence of abnormal cervical lesions was as follows: atypical squamous cells of undetermined significance (ASC-US), 1.3%; low-grade squamous intraepithelial lesion (LSIL), 1.9%; high-grade squamous intraepithelial lesion (HSIL), 0.4%. The detection rate of cytological lesions was significantly higher with LBC than with conventional cytology. Based on 11,838 samples with concomitant cytology and HPV testing, hrHPV was detected in 9.5, 45.3, 70.0, and 92.6% of women with negative cytology, ASC-US, LSIL, and HSIL, respectively.

Conclusion: More cervical lesions were identified using LBC compared to conventional cytology. HrHPV infection was correlated with the severity of intraepithelial lesions. The current findings provide important information to evaluate the prevention of cervical cancer in Luxembourg and for monitoring the future impact of HPV vaccination. Diagn. Cytopathol. 2017;45:384-390. © 2017 Wiley Periodicals, Inc.

Keywords: Aptima HPV assay; HPV; cervical cancer screening; cytology; liquid-based cytology.

MeSH terms

  • Adult
  • Aged
  • Atypical Squamous Cells of the Cervix / pathology
  • Atypical Squamous Cells of the Cervix / virology
  • Carcinoma, Squamous Cell / diagnosis*
  • Carcinoma, Squamous Cell / epidemiology
  • Carcinoma, Squamous Cell / pathology
  • Carcinoma, Squamous Cell / virology
  • Cervical Intraepithelial Neoplasia / diagnosis*
  • Cervical Intraepithelial Neoplasia / epidemiology
  • Cervical Intraepithelial Neoplasia / pathology
  • Cervical Intraepithelial Neoplasia / virology
  • Colposcopy
  • Cross-Sectional Studies
  • DNA, Viral / genetics*
  • Early Detection of Cancer / instrumentation
  • Early Detection of Cancer / methods
  • Female
  • Humans
  • Luxembourg / epidemiology
  • Middle Aged
  • Neoplasm Grading
  • Papillomaviridae / genetics
  • Papillomaviridae / isolation & purification*
  • Papillomavirus Infections / diagnosis*
  • Papillomavirus Infections / epidemiology
  • Papillomavirus Infections / pathology
  • Papillomavirus Infections / virology
  • Practice Guidelines as Topic
  • Pregnancy
  • Prevalence
  • Squamous Intraepithelial Lesions of the Cervix / diagnosis*
  • Squamous Intraepithelial Lesions of the Cervix / epidemiology
  • Squamous Intraepithelial Lesions of the Cervix / pathology
  • Squamous Intraepithelial Lesions of the Cervix / virology
  • Uterine Cervical Neoplasms / diagnosis*
  • Uterine Cervical Neoplasms / epidemiology
  • Uterine Cervical Neoplasms / pathology
  • Uterine Cervical Neoplasms / virology
  • Vaginal Smears

Substances

  • DNA, Viral