Obstet Gynecol Sci.  2014 Jan;57(1):37-43.

Effect of human papillomavirus genotype on severity and prognosis of cervical intraepithelial neoplasia

Affiliations
  • 1Department of Obstetrics and Gynecology, Gachon University Gil Medical Center, Incheon, Korea. miracle627@gilhospital.com

Abstract


OBJECTIVE
This study evaluated the effect of the specific human papillomavirus (HPV) genotypes on severity and prognosis in cervical intraepithelial neoplasia (CIN) patients.
METHODS
The medical records of 446 patients treated with loop electrosurgical excision procedure (LEEP) were reviewed. The severity of CIN was categorized as CIN1/CIN2 versus CIN3+ including CIN3 and carcinoma in situ (CIS). HPV genotypes were categorized as 1) low risk, 2) intermediate risk, 3) high risk/HPV 16, 4) high risk/HPV 18, and 5) unclassified. Progression was defined as abnormal cytology, including atypical squamous cells, low-grade squamous intraepithelial lesion and high-grade squamous intraepithelial lesion. The margin status and progression free survival (PFS) by HPV genotypes were analyzed in 355 women with three months or more of post-treatment records.
RESULTS
CIN3+ was the most common CIN type (67.7%), and high risk/HPV 16 (26.9%) was the most common genotype. Intermediate risk (P < 0.01), high risk/HPV 16 (P < 0.01) and high risk/HPV 18 (P < 0.01) were significantly more common in women with CIN3+ than CIN1/CIN2. Patients with high risk/HPV 18 showed the highest rate of positive margins (P < 0.01). The margin status proved to be the only statistically significant factor affecting PFS.
CONCLUSION
The proportion of positive margins was significantly different by HPV genotypes and highest in high risk/HPV 18 group. CIN patients with high risk/HPV 18 need to be more carefully tracked than patients with the other HPV genotypes.

Keyword

Cervical intraepithelial neoplasia; Genotype; Human papillomavirus; Prognosis
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