Akiko Kudoh1, Shinya Sato1, Hiroaki Itamochi2,3, Hiroaki Komatsu1, Michiko Nonaka1, Seiya Sato1,4, Jun Chikumi1, Muneaki Shimada1, Tetsuro Oishi1, Junzo Kigawa5, Tasuku Harada1. 1. Depertment of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, Yonago-City, Tottori, 683-8504, Japan. 2. Depertment of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, Yonago-City, Tottori, 683-8504, Japan. itamochi@hotmail.com. 3. Depertment of Obstetrics and Gynecology, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka-City, Iwate, 020-8505, Japan. itamochi@hotmail.com. 4. Depertment of Obstetrics and Gynecology, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka-City, Iwate, 020-8505, Japan. 5. Matsue City Hospital, 32-1 Noshira, Matsue-City, Shimane, 690-8509, Japan.
Abstract
OBJECTIVE: To assess the relationship between pre- and postoperative high-risk human papillomavirus (hrHPV) genotypes and hrHPV type-specific persistence and reappearance of abnormal cytology after successful conization. METHODS: A retrospective analysis was performed of 211 patients who were undergoing conization after hrHPV genotype testing at Tottori University Hospital between July 2009 and June 2013. Of the 211 women, 129 underwent pre- and postoperative hrHPV genotype testing and were diagnosed with cervical intraepithelial neoplasia (CIN) grades 1-3 with negative margins. RESULTS: The postoperative pathological diagnosis was CIN 1 in 8 patients, CIN 2 in 12, CIN 3 in 108 and adenocarcinoma in situ in 1 patient. Before conization, the most frequent hrHPV genotypes were HPV16 (n = 52; 40.3 %), followed by HPV52 (n = 32; 24.8 %) and HPV58 (n = 28; 21.7 %), while HPV18 was detected in 6 cases (4.7 %). Of the 23 postoperative hrHPV-positive cases, the same genotypes were detected in 10 cases while a different genotype was detected in 11 cases; type did not affect the frequency of persistent postoperative infection. The 3-year cumulative risk for the reappearance of abnormal cytology was significantly higher in postoperative hrHPV-positive patients than in postoperative hrHPV-negative patients (31.6 vs 9.7 %, P = 0.0014). A high-grade squamous intraepithelial lesion (HSIL) was observed during the follow-up period in one patient with persistent HPV16 infection. CONCLUSIONS: Postoperative hrHPV infection was a significant positive predictor for the reappearance of abnormal cytology and HPV16 infection-induced HSIL after treatment. Therefore, our study suggests that hrHPV genotype testing may be useful to follow-up CIN patients.
OBJECTIVE: To assess the relationship between pre- and postoperative high-risk human papillomavirus (hrHPV) genotypes and hrHPV type-specific persistence and reappearance of abnormal cytology after successful conization. METHODS: A retrospective analysis was performed of 211 patients who were undergoing conization after hrHPV genotype testing at Tottori University Hospital between July 2009 and June 2013. Of the 211 women, 129 underwent pre- and postoperative hrHPV genotype testing and were diagnosed with cervical intraepithelial neoplasia (CIN) grades 1-3 with negative margins. RESULTS: The postoperative pathological diagnosis was CIN 1 in 8 patients, CIN 2 in 12, CIN 3 in 108 and adenocarcinoma in situ in 1 patient. Before conization, the most frequent hrHPV genotypes were HPV16 (n = 52; 40.3 %), followed by HPV52 (n = 32; 24.8 %) and HPV58 (n = 28; 21.7 %), while HPV18 was detected in 6 cases (4.7 %). Of the 23 postoperative hrHPV-positive cases, the same genotypes were detected in 10 cases while a different genotype was detected in 11 cases; type did not affect the frequency of persistent postoperative infection. The 3-year cumulative risk for the reappearance of abnormal cytology was significantly higher in postoperative hrHPV-positive patients than in postoperative hrHPV-negative patients (31.6 vs 9.7 %, P = 0.0014). A high-grade squamous intraepithelial lesion (HSIL) was observed during the follow-up period in one patient with persistent HPV16infection. CONCLUSIONS:Postoperative hrHPV infection was a significant positive predictor for the reappearance of abnormal cytology and HPV16infection-induced HSIL after treatment. Therefore, our study suggests that hrHPV genotype testing may be useful to follow-up CINpatients.
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