High-risk HPV testing improves accuracy in detection of CIN2+ lesions in ASC-H postmenopausal women? An academic hospital experiences.

Abstract

Reflex human papilloma virus (HPV) testing with "atypical squamous cells, cannot exclude high-grade squamous lesion (ASC-H)" cytologic diagnosis is not recommended by American Society for Colposcopy and Cervical Pathology guidelines. Studies have shown human papillomavirus (HPV)-negative ASC-H patients of increased age are low risk for cervical intraepithelial neoplasia 2 or worse (CIN2+) lesions on colposcopic follow-up. We retrospectively assessed the efficacy of reflex HPV testing in postmenopausal women with ASC-H in the Los Angeles County hospitals and clinics in a 5-year period. Of a total 85 clinically postmenopausal women with ASC-H, 31 (36.5%) women were found to have CIN2+ lesions on follow-up biopsy and five of them were HPV-negative. Of the women with CIN2+ lesions and positive HPV, 13 (41.9%) were high-risk HPV (hrHPV) 16/18/45 positive and 13 (41.9%) were hrHPV-other subtype positive. Women with positive HPV had an over 3-fold increased risk of developing CIN2+ lesions (P= 0.008). Relative risk of hrHPV16/18/45 was 1.79-fold higher than that of hrHPV-other subtype. The positive predictive value and negative predictive value of hrHPV were 49.1% and 84.4%, respectively. CIN2+ detection rate in Hispanic women with positive hrHPV was higher than in non-Hispanic women (53.8% versus 35.7%). Overall, postmenopausal women with ASC-H cytology result and negative hrHPV were less likely to develop CIN2+ lesions, whereas about half of ASC-H postmenopausal women develop CIN2+ lesions if hrHPV positive, especially if hrHPV 16/18/45 positive. Therefore, triaging ASC-H postmenopausal women with cotesting or, ideally, hrHPV genotyping should be considered as optimal clinical practice to avoid overtreatment.