Sunday, June 27, 2021

Prognostic factors for overall survival in oropharyngeal carcinoma depending on HPV status

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HNO. 2021 Jun 25. doi: 10.1007/s00106-021-01076-3. Online ahead of print.

ABSTRACT

BACKGROUND: Due to their differing carcinogenesis, prognosis and clinical manifestation, human papillomavirus (HPV)-associated and HPV-negative oropharyngeal squamous cell carcinoma (OSCC) have been classified separately as two entities since the 8th edition of the AJCC/UICC TNM staging system (UICC 8).

MATERIALS AND METHODS: A total of 524 patients with OSCC treated between 2000 and 201 6 at the Department of Otorhinolaryngology, Head and Neck Surgery of the University Hospital Muenster, Germany, were examined for the detection of HPV type 16-specific DNA (HPV16-DNA), nicotine and alcohol consumption and the influence of therapy on overall survival (OS).

RESULTS: There was a significant increase in the annual prevalence of HPV16-DNA-positive OSCC from 40% (n = 12/30) in 2000 to 46% (n = 18/39) in 2016 (p = 0.025, β = 0.539). Of the HPV16-DNA-positive OSCC, 89% (n = 212) were downgraded on the basis of UICC 8 compared to UICC 7. In the overall collective, frequent alcohol and nicotine (≥ 10 pack years) consumption showed a significant negative influence on OS (p = 0.004 and p = 0.009, respectively). Frequent alcohol consumption was also prognostically relevant in the HPV16-DNA-negative group (p = 0.049). In the HPV16-DNA-positive group, the prognosis for OS according to UICC 8 showed no statistically significant difference between stages I and II (p = 0,481 ), or between III and IV (p = 0.439).

CONCLUSIONS: The current UICC 8 improves the prognostic stratification of OSCC due to the separation of HPV-positive and HPV-negative tumors in comparison to UICC 7. However, the prognostic significance of UICC 8 for HPV-associated OSCC is still insufficient. In the future, alcohol and nicotine consumption could influence the UICC classification in order to further improve prognostic significance.

PMID:34170339 | DOI:10.1007/s00106-021-01076-3

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