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      The effectiveness of cold-knife conization (CKC) for post-menopausal women with cervical high-grade squamous intraepithelial lesion: a retrospective study

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          Abstract

          Background

          The effectiveness of surgery of high-grade squamous intraepithelial lesion in post-menopausal women needs to be investigated. This study evaluated the clinical significance of cold-knife conization in the diagnosis and surgery of cervical high-grade squamous intraepithelial lesions in post-menopausal women.

          Methods

          We conducted a retrospective analysis of post- and pre-menopausal patients with high-grade squamous intraepithelial lesion. All patients received cold-knife conization as the primary therapy.

          Results

          The satisfactory rate of colposcopy was significantly lower in the post-menopausal group than in the pre-menopausal group (38.33 vs. 71.25%; χ 2 = 36.202, P < 0.001). The overall positive margin rate of cold-knife conization (25.83 vs 12.50%; χ 2 = 10.106, P = 0.001) and rate of positive endocervical cone margins (16.67 vs. 4.58%; χ 2 = 14.843, P < 0.001) were significantly higher in the post-menopausal group. Moreover, 49 post- and 60 pre-menopausal women underwent subsequent surgical treatment (40.83 vs. 25.00%). Residual rate of positive and negative margins in patients before and after menopause was significantly different ( χ 2 = 5.711, P = 0.017; χ 2 = 12.726, P < 0.001, respectively). The recurrence rate in post-menopausal women remained 3.85%.

          Conclusions

          Cold-knife conization can be performed as a primary procedure for diagnosis and surgery of post-menopausal patients with high-grade squamous intraepithelial lesions. Sufficient deep excisions are necessary to avoid positive endocervical margins, which can reduce the residual and recurrence of postoperative lesions.

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          Most cited references28

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          Natural history of cervical intraepithelial neoplasia: a critical review.

          A G Ostör (1993)
          The literature dealing with the natural history of cervical intraepithelial neoplasia (CIN) since 1950 is reviewed, in particular from the viewpoint of regression, persistence, and progression. When stratified into the various grades of severity, the composite data indicate the approximate likelihood of regression of CIN 1 is 60%, persistence 30%, progression to CIN 3 10%, and progression to invasion 1%. The corresponding approximations for CIN 2 are 40%, 40%, 20%, and 5%, respectively. The likelihood of CIN 3 regressing is 33% and progressing to invasion greater than 12%. It is obvious from the above figures that the probability of an atypical epithelium becoming invasive increases with the severity of the atypia, but does not occur in every case. Even the higher degrees of atypia may regress in a significant proportion of cases. As morphology by itself does not predict which lesion will progress or regress, future efforts should seek factors other than morphological to determine the prognosis in individual patients.
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            Incomplete excision of cervical intraepithelial neoplasia and risk of treatment failure: a meta-analysis.

            Over 60,000 women are treated for cervical intraepithelial neoplasia (CIN) each year in England, most by excision. Management of women who have incomplete excision is controversial and the subject of much debate. Consequently, the completeness of excision is often ignored in the planning of subsequent treatment. We aimed to assess the effect of completeness of excision on the risk of post-treatment disease. We undertook a meta-analysis of studies published between Jan 1, 1960, and Jan 31, 2007, that studied the risk of post-treatment disease (ie, CIN of any grade or invasive cancer) in relation to completeness of excision. Studies were included if they described treatment of CIN by excision; numbers of women with involved margins; prevalence of and numbers of women with post-treatment disease in relation to margin status. Criteria for post-treatment disease had to be stated as a defined abnormal cytology or histology. Studies were excluded if they described treatment of cervical glandular intraepithelial disease (CGIN); if all or nearly all women had reflex hysterectomy done soon after initial treatment; if women were immunosuppressed (eg, if they were HIV-positive); or if no control group with disease-free margins was used. The endpoint of our analysis was the relative risk (RR) of post-treatment disease in those whose treatment histology suggested that excision was complete compared with those in whom excision was incomplete or uncertain. RR meta-analysis was done by use of a random effects model. The initial Medline search identified 1756 publications, from which 125 publications were short-listed. Of these, 65 and one unpublished study met our inclusion criteria; therefore, 66 studies were included in this meta-analysis. These studies described findings in 35,109 women of whom 8091 (23%) had at least one margin of the excision biopsy involved with disease. After incomplete excision, RR of post-treatment disease of any grade was 5.47 (95% CI 4.37-6.83) and RR of high-grade disease (ie, CIN 2 or 3, or high-grade squamous intraepithelial lesion) was 6.09 (3.87-9.60) compared with the reference group who had complete excision. High-grade post-treatment disease occurred in 597 of 3335 (18%) women who had incomplete excision versus 318 of 12 493 (3%) women who had complete excision. Incomplete excision of CIN exposes women to a substantial risk of high-grade post-treatment disease. Some of these women would be safer with a second treatment, especially if deep margins are involved, but most will need close follow-up for at least 10 years. Every effort should be made to avoid incomplete excision. Adding extensive ablation in the treatment crater to compensate for inadequate excision should be avoided because this might delay detection of inadequately treated invasive disease and because the effectiveness of additional ablation to destroy any residual CIN cannot be assessed. Furthermore, extensive ablation does not decrease any risk of preterm delivery in subsequent pregnancies.
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              2006 consensus guidelines for the management of women with cervical intraepithelial neoplasia or adenocarcinoma in situ.

              A group of 146 experts representing 29 organizations and professional societies met Sept. 18-19, 2006, in Bethesda, MD, to develop revised evidence-based, consensus guidelines for managing women with abnormal cervical cancer screening tests. The management of low-grade cervical intraepithelial neoplasia (CIN) grade 1 has been modified significantly. Previously, management depended on whether colposcopy was satisfactory and treatment using ablative or excisional was acceptable for all women with CIN 1. In the new guidelines, cytological follow-up is the only recommended management option for women with CIN 1 who have low-grade referral cervical cytology, regardless of whether the colposcopic examination is satisfactory. Treatment is particularly discouraged in adolescents. The basic management of women in the general population with CIN 2,3 underwent only minor modifications, but options for the conservative management of adolescents with CIN 2,3 have been expanded. Moreover, management recommendations for women with biopsy-confirmed adenocarcinoma in situ are now included.
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                Author and article information

                Contributors
                qu.pengpeng@hotmail.com
                Journal
                BMC Surg
                BMC Surg
                BMC Surgery
                BioMed Central (London )
                1471-2482
                12 May 2021
                12 May 2021
                2021
                : 21
                : 241
                Affiliations
                [1 ]GRID grid.265021.2, ISNI 0000 0000 9792 1228, Clinical College of Central Gynecology and Obstetrics, , Tianjin Medical University, ; Heping, Tianjin, 300070 People’s Republic of China
                [2 ]GRID grid.410626.7, ISNI 0000 0004 1798 9265, Department of Gynecological Oncology, , Tianjin Central Hospital of Gynecology Obstetrics, Tianjin Key Laboratory of Human Development and Reproductive Regulation, ; 156 Nankai Third Road, Nankai, Tianjin, 300100 People’s Republic of China
                Article
                1238
                10.1186/s12893-021-01238-8
                8114500
                33975589
                9528f83b-cb17-4a86-9224-24fd2e5b2d9c
                © The Author(s) 2021

                Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

                History
                : 18 February 2021
                : 4 May 2021
                Categories
                Research
                Custom metadata
                © The Author(s) 2021

                Surgery
                colposcopy,conization,high-grade squamous intraepithelial lesion,hysterectomy,post-menopause

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