Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Σάββατο 5 Ιανουαρίου 2019

Immunologic mediators of outcome for irradiated oropharyngeal carcinoma based on human papillomavirus status

Publication date: February 2019

Source: Oral Oncology, Volume 89

Author(s): Jessica Meshman, Maria A. Velez, Pin-Chieh Wang, Elliot Abemayor, Maie St. John, Deborah Wong, Sunita Bhuta, Allen M. Chen

Abstract
Purpose

To investigate the prognostic value of pre-treatment immune parameters including white blood cell count (WBC) and circulating lymphocyte count (CLC) among patients with oropharyngeal carcinoma treated by radiation therapy.

Methods and Materials

A total of 136 consecutive patients were treated by radiation therapy for locally advanced (stage III/IV) squamous cell carcinoma of the oropharynx with known human papillomavirus (HPV) status. Medical records were reviewed to identify patients with documented pre-treatment laboratory bloodwork. The Kaplan-Meier method and linear regression models were used to evaluate the association between pre-treatment CBC and CLC values with survival endpoints.

Results

One hundred and eleven patients satisfied inclusion criteria. Median age was 62 years (range, 22–91). Eighty-four patients were HPV-positive (76%) and 27 (24%) were HPV-negative. There was no difference in WBC and CLC mean values at baseline between HPV-positive and HV-negative (p > 0.05, for both). Trends were detected in the HPV-positive cohort favoring patients with higher CLC, with respect to 2-year local-regional control (93% vs. 82%, p = 0.06) and distant control (88% vs. 82%, p = 0.10) using the median CLC as cut-off. HPV-positive patients with CLC values in the lowest quartile had inferior local-regional control compared to those in the upper 3 quartiles (69% vs. 89%, p = 0.01).

Conclusion

Low pre-treatment CLC was correlated with local-regional recurrence and distant failure among HPV-positive patients. These associations were not observed in the HPV-negative cohort.



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