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  • Title: An Abnormal Precone Endocervical Curettage Result Is an Independent Risk Factor for Positive Margins in Conization Specimens.
    Author: An J, Lei H, Xie X, Sun P.
    Journal: Oncol Res Treat; 2020; 43(10):518-525. PubMed ID: 32772026.
    Abstract:
    OBJECTIVE: This study aimed to identify risk factors associated with the presence of positive surgical margins in cervical conization specimens. METHODS: This study is a retrospective analysis of data from women who had undergone conization for cervical intraepithelial neoplasia (CIN) from 2012 to 2018 at Fujian Maternity and Child Health Hospital. Factors extracted from the database included age, gravidity, parity, menopausal status, precone Thinprep cytology test, human papillomavirus (HPV) test, precone biopsy, precone endocervical curettage (ECC) result, conization method, operating surgeon, cone dimension, and pathology of the conization specimen, including grade of CIN, margin status and glandular involvement. Univariate and multivariate analyses were performed to identify risk factors associated with positive margins. RESULTS: Data from 495 women were analysed. The proportion of positive margins was 24.85% overall, which varied according to the conization method (27.22% for loop electrosurgical excision procedure vs. 18.52% for cold-knife conization, p = 0.047) and was increased as the severity of the treated lesion increased (10.07% for CIN2 vs. 30.62% for CIN3, p < 0.001). HPV-16 genotype infection, abnormal precone ECC result, higher grade of biopsy, larger cone length and volume, and glandular involvement were significantly associated with positive margins on univariable analysis. After logistic regression analysis, only an abnormal precone ECC result (odds ratio 1.952; 95% confidence interval 1.037-3.676; p = 0.038) remained significant. CONCLUSIONS: In the present study, an abnormal precone ECC result was identified as an independent risk factor for positive margins in cervical conization specimens. More aggressive treatment may be considered in patients with abnormal precone ECC results in clinical practice.
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