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J Invest Surg. 2018 Sep 13:1-6. doi: 10.1080/08941939.2018.1483449. [Epub ahead of print]

The Clearance of High-Risk Human Papillomavirus is Sooner After Thin Loop Electrosurgical Excision Procedure (t-LEEP).

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1
a Department of Gynecology , Changning Maternity and Infant Health Hospital , Shanghai , China.

Abstract

Purpose/aim of the study: To investigate high-risk human papillomavirus (HPV) infection clearance following thin loop electrosurgical excision procedure (t-LEEP) among patients with cervical benign lesion.

MATERIALS AND METHODS:

This retrospective study analyzed clinical data from patients with cervical benign lesion and HPV infection, who had undergone t-LEEP (T-Group), compared with patients with HPV infection undergone no treatment (NT-Group). Both groups attended regular follow-up between January 2008 and January 2012. Kaplan-Meier analysis was used to compare the HPV clearance time.

RESULTS:

The average clearance time was 7.7 months (M) (95% confidence interval [CI]: 6.5-8.9 M) in T-Group, and 10.4 M (95%CI: 9.4-11.3 M) in NT-Group, with significant difference between groups (p = 0.003). Among patients with low viral load, the HPV clearance times were 7.6 M (95%CI: 6.3-9.0 M) in T-Group and 9.7 M (95%CI: 8.6-10.8 M) in NT-Group (p = 0.042). Among patients with high viral load, the HPV clearance times were 8.0 M (95%CI: 5.3-10.6 M) in T-Group and 11.4 M (95%CI: 9.7-13.1 M) in NT-Group (p = 0.041). The average time of HPV clearance in T-Group was shorter than NT-Group in all age groups, with significant differences in ≤29Y-group (p = 0.008) and 30-39Y-group (p = 0.005). The accumulated clearance rate of HPV infection at sixth month and 12th month were 24.5% and 67.9% in T-Group, 7.8% and 43.1% in NT-Group, with significant differences (p = 0.001 at 6th month, p = 0.032 at 12th month).

CONCLUSIONS:

T-LEEP accelerates the clearance of high-risk HPV infection and make the HPV infection rates dropped rapidly in the first year.

KEYWORDS:

cervical benign lesion; cervical conization; cervical intraepithelial neoplasm; human papillomavirus (HPV); infection; thin loop electrosurgical excision procedure (t-LEEP)

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