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Importance of the Residual Volume of the Cytological Solution for the Reproducibility of the Hybrid Capture 2 High-Risk Human Papillomavirus DNA Test

Importance of the Residual Volume of the Cytological Solution for the Reproducibility of the... Objective: Human papillomavirus (HPV) infections are widespread in all human populations, and a large number of studies have demonstrated a relationship between high-risk (HR)-HPV infections and cervical intraepithelial neoplasia or invasive cervical cancer. To the best of our knowledge, no independent study clearly demonstrates the importance of the quantity of residual liquid after cytology in terms of sensitivity for HR-HPV detection. Study Design: We conducted a study to assess the relationship between the liquid-based cytology volume and the sensitivity of the hybrid capture 2 test for the detection of HR-HPV in 23 cytological high-grade squamous intraepithelial lesions with a cervical intraepithelial neoplasia grade 2 or worse protocol on biopsy. Results: Although the sensitivity of the tests showed no statistically significant differences, we still found a significant variation in the median values of relative light units/control according to the amount of liquid used. Conclusions: If 2 ml of liquid is used, this could lead to false negatives when the value of relative light units/control is only slightly greater than 1. The fact that we found a lower viral load at 2 versus 4 or 8 ml was also important in terms of predicting the evolution of cervical lesions. We recommend using at least 4 ml of the PreservCyt solution for HR-HPV detection with the hybrid capture 2 test. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Cytologica Karger

Importance of the Residual Volume of the Cytological Solution for the Reproducibility of the Hybrid Capture 2 High-Risk Human Papillomavirus DNA Test

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Publisher
Karger
Copyright
© 2012 S. Karger AG, Basel
ISSN
0001-5547
eISSN
1938-2650
DOI
10.1159/000337440
Publisher site
See Article on Publisher Site

Abstract

Objective: Human papillomavirus (HPV) infections are widespread in all human populations, and a large number of studies have demonstrated a relationship between high-risk (HR)-HPV infections and cervical intraepithelial neoplasia or invasive cervical cancer. To the best of our knowledge, no independent study clearly demonstrates the importance of the quantity of residual liquid after cytology in terms of sensitivity for HR-HPV detection. Study Design: We conducted a study to assess the relationship between the liquid-based cytology volume and the sensitivity of the hybrid capture 2 test for the detection of HR-HPV in 23 cytological high-grade squamous intraepithelial lesions with a cervical intraepithelial neoplasia grade 2 or worse protocol on biopsy. Results: Although the sensitivity of the tests showed no statistically significant differences, we still found a significant variation in the median values of relative light units/control according to the amount of liquid used. Conclusions: If 2 ml of liquid is used, this could lead to false negatives when the value of relative light units/control is only slightly greater than 1. The fact that we found a lower viral load at 2 versus 4 or 8 ml was also important in terms of predicting the evolution of cervical lesions. We recommend using at least 4 ml of the PreservCyt solution for HR-HPV detection with the hybrid capture 2 test.

Journal

Acta Cytologica – Karger

Published: Jan 1, 2012

Keywords: Cervix; Human papillomavirus; Cytological liquid volume; Smears; Cytology

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