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Clinical implications of human papillomavirus genotype in cervical adeno-adenosquamous carcinoma

Published:October 01, 2012DOI:https://doi.org/10.1016/j.ejca.2012.09.008

      Abstract

      Background

      Our aims were to evaluate the genotype distribution of human papillomavirus (HPV) and the correlation between HPV parameters and clinicopathological/treatment variables with prognosis in cervical adeno-adenosquamous carcinoma (AD/ASC).

      Patients and methods

      Consecutive patients who received primary treatment for cervical AD/ASC International Federation of Gynecology and Obstetrics (FIGO) stages I–IV between 1993 and 2008 were retrospectively reviewed. Prognostic models were constructed and followed by internal validation with bootstrap resampling.

      Results

      A total of 456 AD/ASC patients were eligible for HPV genotyping, while 452 were eligible for survival analysis. HPV18 was detected in 51.5% and HPV16 in 36.2% of the samples. Age >50 years old, FIGO stages III–IV and HPV16-negativity were significantly related to cancer relapse, and age >50, FIGO stages III–IV, HPV16-negativity and HPV58-positivity were significant predictors for cancer-specific survival (CSS) by multivariate analyses. HPV16-positivity was also significantly associated with good prognosis in those receiving primary radiotherapy or concurrent chemoradiation (RT/CCRT) (CSS: hazard ratio 0.41, 95% confidence interval 0.21–0.78). Patients with FIGO stages I–II and HPV16-negative AD/ASC treated with primary RH-PLND had significantly better CSS (p< 0.0001) than those treated with RT/CCRT.

      Conclusions

      Age >50 years old, FIGO stages III–IV and HPV16-negativity were significant poor prognostic factors in cervical AD/ASC. Patients with HPV16-negative tumour might better be treated with primary surgery (e.g. radical hysterectomy for stages I–II and pelvic exenteration for stage IVA). Those with unresectable HPV16-negative tumour (stage IIIB) should undergo CCRT in combination with novel drugs. The inferences of a single-institutional retrospective study require prospective studies to confirm.

      Keywords

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