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  • Title: Detection of cervical cancer and its precursors by endocervical curettage in 13,115 colposcopically guided biopsy examinations.
    Author: Gage JC, Duggan MA, Nation JG, Gao S, Castle PE.
    Journal: Am J Obstet Gynecol; 2010 Nov; 203(5):481.e1-9. PubMed ID: 20800216.
    Abstract:
    OBJECTIVE: Endocervical curettage (ECC) specimens obtained during colposcopy can detect cervical cancer and precursors otherwise missed by biopsy alone, but the procedure can be painful and reduce compliance with needed follow-up. ECC is routinely performed in the Calgary Health Region colposcopy clinics, permitting a look at its real-world utility. STUDY DESIGN: We analyzed pathology and colposcopy reports from 2003 to 2007. We calculated the added diagnostic utility of ECC compared with cervical biopsy alone. RESULTS: ECC increased the diagnostic yield of cervical intraepithelial neoplasia grade 2 or worse (cervical intraepithelial neoplasia [CIN]2+) in 1.01% of 13,115 colposcopically guided biopsy examinations. Therefore, 99 ECC specimens were taken to detect 1 additional CIN2+. ECC detected 5.4% of 2443 CIN2+ subjects otherwise missed by biopsy alone. Utility was greatest among women aged 46 years or older referred after a high-grade cytology. CONCLUSION: ECC is rarely informative when used routinely in colposcopic practice. Older women referred after high-risk cytology benefit most from ECC.
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