Preprint Article Version 1 This version is not peer-reviewed

Long-Term Reassurance with Negative High-Risk Human Papillomavirus (HR-HPV) and Clear Margins After Large Loop Excision of the Transformation Zone (Lletz)

Version 1 : Received: 19 October 2024 / Approved: 21 October 2024 / Online: 21 October 2024 (13:50:46 CEST)

How to cite: Heydari, F.; de Sanjosé, S.; Peñafiel Muñoz, J.; Fernández-Montolí, A. M.-E. Long-Term Reassurance with Negative High-Risk Human Papillomavirus (HR-HPV) and Clear Margins After Large Loop Excision of the Transformation Zone (Lletz). Preprints 2024, 2024101606. https://doi.org/10.20944/preprints202410.1606.v1 Heydari, F.; de Sanjosé, S.; Peñafiel Muñoz, J.; Fernández-Montolí, A. M.-E. Long-Term Reassurance with Negative High-Risk Human Papillomavirus (HR-HPV) and Clear Margins After Large Loop Excision of the Transformation Zone (Lletz). Preprints 2024, 2024101606. https://doi.org/10.20944/preprints202410.1606.v1

Abstract

Abstract: Background/Objective: Women treated with large loop excision of the transformation zone (LLETZ) for cervical intraepithelial neoplasia 2-3 (CIN2+) remain at CIN2+ risk for many years. We assessed the role of high-risk human papillomavirus (HR-HPV), surgical margins, and LLETZ characteristics in long-term risk of CIN2+. Methods: A retrospective observational study was performed on 432 women with histological diagnosis of CIN2+ who were treated with LLETZ from 1996 to 2020 and followed-up until October 2021 at Hospital Bellvitge in Barcelona, Spain. Age, surgical margins, 6-month HR-HPV, excision type, and cone volume/dimensions were ana-lyzed in association with follow-up detection of CIN2+. The cumulative probability of follow-up detection of CIN2+ was calculated by Kaplan-Meier and Cox models. Results: CIN2+ was detected in 7.4% of cases, with over 90% found within 5 years post-LLETZ. HR-HPV (HR = 7.36, 95% CI = 3.55-15.26), involved margins (HR = 3.94, 95% CI = 1.68-9.25), uncertain margins (HR = 4.42, 95% CI = 1.55-12.55), and age ≥ 35 years (HR = 2.92, 95% CI = 1.19-7.13) were predictors of follow-up detection of CIN2+. Type 3 excision (p-value = 0.035) and cone length (p-value = 0.010) correlated with clear margins. The negative predictive value (NPV) of both negative HR-HPV post-LLETZ and clear margins was 98.7%. Conclusions: Negative HR-HPV post-LLETZ and clear margins provide stronger reassurance against follow-up detection of CIN2+ than LLETZ characteristics. Larger ex-cisions in older women likely reduced the risk of involved margins. Close surveillance, including repeated HR-HPV testing within the first 5 years post-LLETZ, is crucial.

Keywords

Keywords: Cervical intraepithelial neoplasia, CIN2+, LLETZ, HR-HPV, margin status, type of LLETZ excision, cone dimensions, conization length.

Subject

Medicine and Pharmacology, Oncology and Oncogenics

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