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  • Title: Role of human papillomavirus status after conization for high-grade cervical intraepithelial neoplasia.
    Author: Huang HJ, Tung HJ, Yang LY, Chao A, Tang YH, Chou HH, Chang WY, Wu RC, Huang CC, Lin CY, Liao MJ, Chen WC, Lin CT, Chen MY, Huang KG, Wang CJ, Chang TC, Lai CH.
    Journal: Int J Cancer; 2021 Feb 01; 148(3):665-672. PubMed ID: 32781482.
    Abstract:
    Human papillomavirus (HPV) is the well-established etiologic factor for cervical neoplasia. Cervical conization constitutes an effective treatment for high-grade cervical intraepithelial neoplasia (HG-CIN). We conducted an observational study for long-term outcomes and HPV genotype changes after conization for HG-CIN. Between 2008 and 2014, patients with newly diagnosed HG-CIN before conization (surveillance new [SN] group) and those who had undergone conization without hysterectomy (surveillance previous [SP] group) were enrolled. HPV testing and Pap smear were performed periodically for the SN and SP (collectively S) groups. All other patients receiving conization for HG-CIN during the study period were identified from our hospital database. Those eligible but not enrolled into our study were assigned to the non-surveillance (non-S) group. For the S group (n = 493), the median follow-up period was 74.3 months. Eighty-four cases had recurrent CIN Grade 2 or worse (CIN2+) (5-year cumulative rate: 14.8%), of which six had invasive cancer. Among the 84 patients, 65 (77.4%) exhibited type-specific persistence in the paired HPV results, whereas only 7 (8.3%) harbored new HPV types that belonged to the 9-valent vaccine types. Among the 7397 non-S patients, 789 demonstrated recurrent CIN2+, of which 57 had invasive cancer. The stages distribution of those progressed to invasive cancer in the non-S group were more advanced than the S group (P = .033). Active surveillance might reduce the severity of those progressed to cancer. Because a majority of the patients with recurrent CIN2+ had persistent type-specific HPV infections, effective therapeutic vaccines are an unmet medical need.
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