Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy
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 chemora...
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Korean Society of Otorhinolaryngology-Head and Neck Surgery
2020-11-01
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doaj-fd16dd1650e54e939f5369d4133cc40c2020-11-25T04:00:16ZengKorean Society of Otorhinolaryngology-Head and Neck SurgeryClinical and Experimental Otorhinolaryngology1976-87102005-07202020-11-0113440741410.21053/ceo.2019.01298682Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent ChemoradiotherapyErkan Topkan0Ugur Selek1Hüseyin Mertsoylu2Yurday Ozdemir3Ahmet Kucuk4Nese Torun5Ali Ayberk Besen6 Department of Radiation Oncology, Baskent University Medical Faculty, Adana, Turkey Department of Radiation Oncology, Koc University School of Medicine, Istanbul, Turkey Department of Medical Oncology, Baskent University Medical Faculty, Adana, Turkey Department of Radiation Oncology, Baskent University Medical Faculty, Adana, Turkey Clinics of Radiation Oncology, Mersin City Hospital, Mersin, Turkey Department of Nuclear Medicine, Baskent University Medical Faculty, Adana, Turkey Department of Medical Oncology, Baskent University Medical Faculty, Adana, TurkeyObjectives 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.http://www.e-ceo.org/upload/pdf/ceo-2019-01298.pdfnasopharyngeal neoplasmsconcurrent chemoradiotherapyphotopeniafdg-pet-ctprognosis |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Erkan Topkan Ugur Selek Hüseyin Mertsoylu Yurday Ozdemir Ahmet Kucuk Nese Torun Ali Ayberk Besen |
spellingShingle |
Erkan Topkan Ugur Selek Hüseyin Mertsoylu Yurday Ozdemir Ahmet Kucuk Nese Torun Ali Ayberk Besen Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy Clinical and Experimental Otorhinolaryngology nasopharyngeal neoplasms concurrent chemoradiotherapy photopenia fdg-pet-ct prognosis |
author_facet |
Erkan Topkan Ugur Selek Hüseyin Mertsoylu Yurday Ozdemir Ahmet Kucuk Nese Torun Ali Ayberk Besen |
author_sort |
Erkan Topkan |
title |
Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy |
title_short |
Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy |
title_full |
Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy |
title_fullStr |
Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy |
title_full_unstemmed |
Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy |
title_sort |
pretreatment photopenia on 18f-fluorodeoxyglucose positron emission tomography-computed tomography scans predicts poor prognosis in nasopharyngeal cancer patients undergoing concurrent chemoradiotherapy |
publisher |
Korean Society of Otorhinolaryngology-Head and Neck Surgery |
series |
Clinical and Experimental Otorhinolaryngology |
issn |
1976-8710 2005-0720 |
publishDate |
2020-11-01 |
description |
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. |
topic |
nasopharyngeal neoplasms concurrent chemoradiotherapy photopenia fdg-pet-ct prognosis |
url |
http://www.e-ceo.org/upload/pdf/ceo-2019-01298.pdf |
work_keys_str_mv |
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