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Persistent HPV infection after conization in patients with negative margins
Seung-Hun Song1, Jae-Kwan Lee, Min-Jeong Oh
1Department of Obstetrics and Gynecology, Korea University School of Medicine, Guro Hospital, Guro-Dong, Guro-Gu, Seoul, 152-703 RO, South Korea.
Gynecologic Oncology
|January 3, 2006
Summary
Conization effectively clears high-risk human papillomavirus (HPV) in most patients. High pretreatment viral load is a key predictor of persistent HPV infection, necessitating close follow-up for these individuals.
Area of Science:
- Gynecology
- Oncology
- Virology
Background:
- Cervical intraepithelial neoplasia (CIN) is a precancerous condition often caused by high-risk human papillomavirus (HPV).
- Conization is a surgical procedure to remove abnormal cervical cells.
- Negative margins after conization aim to ensure complete removal of diseased tissue.
Purpose of the Study:
- To determine the rate of high-risk HPV clearance after conization with negative margins.
- To identify predictors of HPV clearance or persistence post-conization.
Main Methods:
- Retrospective review of 69 patients with CIN 2/3 undergoing conization with negative margins.
- High-risk HPV testing (Hybrid Capture II) performed before and 6 months after conization.
- Analysis of factors, including viral load, predicting HPV persistence.
Main Results:
- High-risk HPV was detected in 97.1% of patients pre-conization.
- Conization eradicated high-risk HPV in 82.1% of patients at 6-month follow-up.
- High pretreatment viral load (RLU/PC > 500) was the only significant independent predictor of HPV persistence (P=0.0027).
Conclusions:
- Conization with negative margins is effective in eliminating high-risk HPV in most cases.
- Patients with high viral loads pre-conization have a significantly higher risk of persistent HPV infection.
- Close monitoring is recommended for patients with high viral loads prior to conization.