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  • Title: Triage of atypical squamous cells of undetermined significance with hybrid capture II: colposcopy and histologic human papillomavirus correlation.
    Author: Lonky NM, Felix JC, Naidu YM, Wolde-Tsadik G.
    Journal: Obstet Gynecol; 2003 Mar; 101(3):481-9. PubMed ID: 12636951.
    Abstract:
    OBJECTIVE: To estimate the effectiveness of Hybrid Capture II to predict high-grade cervical intraepithelial neoplasia (CIN) from a cytological cervical sample. Evidence of high-risk human papillomavirus (HPV) was also determined from biopsy samples using the polymerase chain reaction (PCR) for women referred with atypical squamous cells of undetermined significance (ASCUS) Papanicolaou smears. METHODS: We screened 8170 women with Papanicolaou smears, of whom 278 (3.4%) returned ASCUS. All ASCUS cases underwent colposcopy and Hybrid Capture II testing. High-grade CIN biopsy specimens were tested for high-risk HPV by PCR. RESULTS: Nearly 30% of ASCUS cases had CIN biopsy results (11.9% showing CIN II or CIN III and 17.6% showing CIN I). Hybrid Capture II positive rates were 93.3% for cases with CIN III, 72.2% for CIN II, and 51.0% for CIN I (P <.001). ASCUS-Premalignant Process Favored cases showed a 28.1% high-grade biopsy rate and a 100% Hybrid Capture II positive rate. For ASCUS-Undefined and ASCUS-Reactive Process Favored cases, Hybrid Capture II returned positive in 90.9% of CIN III and 61.5% of CIN II cases (P <.001). Sixty-nine of 178 (38.8%) patients with no evidence of CIN tested positive for Hybrid Capture II. Human papillomavirus deoxyribonucleic acid (DNA) high-risk subtypes were detected by PCR in the tissue of all high-grade CIN cases with negative Hybrid Capture II results. CONCLUSION: Hybrid Capture II returned negative in 25% of cases with biopsy-proven high-grade CIN with associated high-risk HPV DNA by PCR (non-Premalignant ASCUS subset), and positive in 39.3% of cases with normal results; this limits its clinical utility.
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