Human papillomavirus load in Hybrid Capture II assay: does increasing the cutoff improve the test?
| Autor: | Luis M. Puig-Tintoré, Aureli Torné, Roser Esteve, Jaume Ordi, Imma Alonso, Erika Sierra, Elias Campo |
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| Rok vydání: | 2005 |
| Předmět: |
Adult
medicine.medical_specialty Adolescent Uterine Cervical Neoplasms Adenocarcinoma Cervical intraepithelial neoplasia Gastroenterology Sensitivity and Specificity Cytology Internal medicine Biopsy medicine Carcinoma Humans Pap test Papillomaviridae Aged Cervical cancer Colposcopy Gynecology Aged 80 and over medicine.diagnostic_test business.industry Papillomavirus Infections Obstetrics and Gynecology Nucleic Acid Hybridization Middle Aged Viral Load medicine.disease Uterine Cervical Dysplasia Oncology DNA Viral Carcinoma Squamous Cell RNA Viral Female business Viral load |
| Zdroj: | Gynecologic oncology. 99(2) |
| ISSN: | 0090-8258 |
| Popis: | The aim of the study was to evaluate whether the results of the Hybrid Capture II (HCII) assay for detecting high-grade squamous intraepithelial lesions (H-SIL) or cervical carcinoma can be improved by increasing the relative light units (RLU) level.We included 2271 women (mean age 38.7 +/- 12.3, range 15-92) referred to a colposcopic clinic due to cytology of atypical cells of unknown significance, SIL or carcinoma. All women underwent a new Pap test, HR-HPV detection using HCII and colposcopy with biopsy of suspicious areas when present.HR-HPV was detected in 91.7% of carcinomas, 96.6% of H-SIL, 85.1% of low-grade SIL and 21.6% of cases with no lesion. The probability of harboring an H-SIL or a carcinoma significantly increased as RLU increased (P = 0.01). The sensitivity and specificity for H-SIL or carcinoma at different cutoffs were 95.7 and 54.6 at 1 RLU, 93.9 and 59.6 at 2 RLU, 90.1 and 65.1 at 5 RLU and 85.7 and 68.7 at 10 RLU. The percentage of cases not detected with HCII increased from 2.4% for cases with1 RLU to 9.5% for cases between 1 and 2 RLU, 14.8% between 2 and 3 RLU, 21.7% between 3 and 5 RLU and 28.4% between 5 and 10 RLU.The use of a higher cutoff (higher viral load) in the HCII should not be recommended because it significantly increases the number of cases with H-SIL or carcinoma not detected, reducing the sensitivity and negative predictive value of the test. |
| Databáze: | OpenAIRE |
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