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  • Title: Outcome of Persistent Low-Grade Cervical Intraepithelial Neoplasia Treated With Loop Electrosurgical Excision Procedure.
    Author: Spinillo A, Gardella B, Iacobone AD, Dominoni M, Cesari S, Alberizzi P.
    Journal: J Low Genit Tract Dis; 2016 Oct; 20(4):307-11. PubMed ID: 27467826.
    Abstract:
    OBJECTIVE: The aim of the study was to evaluate the outcome of persistent (≥2 years) low-grade cervical intraepithelial neoplasia (CIN 1) treated with loop electrosurgical excision procedure (LEEP). MATERIALS AND METHODS: A study of 252 subjects with persistent biopsy-confirmed CIN 1 diagnosed after low-grade squamous intraepithelial lesions or atypical squamous lesions of undetermined significance on Papanicolaou test and treated with LEEP. Post-LEEP follow-up cytological, colposcopic, and molecular diagnostic examinations were scheduled at 6 months, 1 year, and yearly thereafter. RESULTS: The 252 subjects enrolled had a total number of 1,008 visits per colposcopies (median = 3, range = 1-7) during a median post-LEEP follow-up of 25 months (range = 12-121). The cumulative incidence of CIN 2+ at 2 years and at 3 years of follow-up was 2.3% (4/176) and 5.5% (7/128), respectively, or 1.7 cases (95% CI = 1-2.8) per 100 woman-years. Low-grade cervical lesions during post-LEEP follow-up were diagnosed in 70 subjects (27.8%) or 10 cases (95% CI = 7.9-12.6) per 100 woman-years. Overall, persistent and multiple high-risk HPV infections during follow-up were associated with increased rates of CIN persistence or progression. CONCLUSIONS: Women with persistent CIN 1 after atypical squamous lesions of undetermined significance/low-grade squamous intraepithelial lesion treated with LEEP had a low rate of progression to CIN 2+ but remained at a high risk of low-grade cervical abnormalities during follow-up. This information should be taken into account when deciding on the treatment strategy and counseling women with persistent CIN 1.
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