Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy

Erkan Topkan; Ugur Selek; Huseyin Mertsoylu; Yurday Ozdemir; Ahmet Kucuk; Nese Torun; Ali Ayberk Besen

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자료유형: 학술저널

저자정보: Erkan Topkan (Baskent University Medical Faculty) Ugur Selek (Koc University School of Medicine) Huseyin Mertsoylu (Baskent University Medical Faculty) Yurday Ozdemir (Baskent University Medical Faculty) Ahmet Kucuk (Mersin City Hospital Mersin) Nese Torun (Baskent University Medical Faculty) Ali Ayberk Besen (Baskent University Medical Faculty)

저널정보: 대한이비인후과학회 Clinical and Experimental Otorhinolaryngology Clinical and Experimental Otorhinolaryngology 제13권 제4호

발행연도: 2020.1

수록면: 407 - 414 (8page)

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Objectives. To investigate the influence of pretreatment primary tumor or nodal photopenia (PP) on 18F-fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET-CT), an indicator of tumor ischemia, on survival results of nasopharyngeal cancers (NPCs) treated with concurrent chemoradiotherapy (C-CRT). Methods. The pre-C-CRT FDG PET-CT scans of 104 patients with NPC (cT1-4 N0-3 M0) were retrospectively examined to determine the presence of PP (PP+). Our primary endpoint was the influence of PP+ on overall survival (OS), while the progression-free survival (PFS) and locoregional PFS (LRPFS) constituted the secondary endpoints. Results. The PP+ was detected in 29 (27.9%): nine (8.7%), seven (6.7%), and 13 (12.5%) in the primary tumor alone, primary tumor plus neck nodes, and neck nodes alone, respectively. Because the PP+ cases were small by count per location, all comparative analyses were performed according to overall PP+/ PP? status instead of per detected site. At a median follow-up of 67.8 months (range, 9 to 130 months), the median survival times were not reached (NR) for the entire population, while 5-year OS, LRPFS, and PFS rates were 73.3%, 68.2%, and 63.4%, respectively. Comparatively the PP+ patients exhibited significantly poorer median OS (49.8 months vs. NR, P<0.001), LRPFS (40.7 months vs. NR, P=0.001), and PFS (31.8 months vs. NR, P=0.002) durations than their PP? counterparts. Furthermore, the PP+ retained its independent prognostic significance in multivariate analysis (P<0.001). Conclusion. Present results uncovered the pre-C-CRT PP as an independent predictor of poor prognosis for NPC patients, which underscore the requirement for the fortification of the local and systemic treatments in hypoxic NPCs.

#Nasopharyngeal Neoplasms #Concurrent Chemoradiotherapy #Photopenia #FDG-PET-CT #Prognosis

참고문헌 (14)

참고문헌 신청

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Al-Zoughbi W / 2014 / Tumor macroenvironment and metabolism / Semin Oncol 41(2):281~295

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