Yurday Özdemir
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View article: Prechemoradiotherapy Systemic Inflammation Response Index Stratifies Stage IIIB/C Non-Small-Cell Lung Cancer Patients into Three Prognostic Groups: A Propensity Score-Matching Analysis
Prechemoradiotherapy Systemic Inflammation Response Index Stratifies Stage IIIB/C Non-Small-Cell Lung Cancer Patients into Three Prognostic Groups: A Propensity Score-Matching Analysis Open
Purpose. We explored the prognostic influence of the systemic inflammation response index (SIRI) on the survival outcomes of stage IIIB/C non-small-cell lung cancer (NSCLC) patients who underwent concurrent chemoradiotherapy. Methods. Pres…
View article: Low Advanced Lung Cancer Inflammation Index Predicts Poor Prognosis in Locally Advanced Nasopharyngeal Carcinoma Patients Treated with Definitive Concurrent Chemoradiotherapy
Low Advanced Lung Cancer Inflammation Index Predicts Poor Prognosis in Locally Advanced Nasopharyngeal Carcinoma Patients Treated with Definitive Concurrent Chemoradiotherapy Open
Purpose. We aimed to retrospectively investigate the prognostic worth of pretreatment advanced lung cancer inflammation index (ALI) in locally advanced nasopharyngeal carcinoma (LA-NPC) patients treated with concurrent chemoradiotherapy (C…
View article: Comparison of Involved Field Radiotherapy versus Elective Nodal Irradiation in Stage IIIB/C Non-Small-Cell Lung Carcinoma Patients Treated with Concurrent Chemoradiotherapy: A Propensity Score Matching Study
Comparison of Involved Field Radiotherapy versus Elective Nodal Irradiation in Stage IIIB/C Non-Small-Cell Lung Carcinoma Patients Treated with Concurrent Chemoradiotherapy: A Propensity Score Matching Study Open
Background . We retrospectively compared the incidence of isolated elective nodal failure (IENF) and toxicity rates and survival outcomes after elective nodal irradiation (ENI) versus involved-field RT (IFRT) by employing the propensity sc…
View article: Prognostic Value of Pretreatment Systemic Immune-Inflammation Index in Glioblastoma Multiforme Patients Undergoing Postneurosurgical Radiotherapy Plus Concurrent and Adjuvant Temozolomide
Prognostic Value of Pretreatment Systemic Immune-Inflammation Index in Glioblastoma Multiforme Patients Undergoing Postneurosurgical Radiotherapy Plus Concurrent and Adjuvant Temozolomide Open
Objectives . To evaluate the potential prognostic utility of pretreatment systemic immune-inflammation index (SII) in newly diagnosed glioblastoma multiforme (GBM) patients who underwent postneurosurgical radiotherapy and concurrent plus a…
View article: Low Prognostic Nutritional Index Predicts Poor Clinical Outcomes in Patients with Stage IIIB Non-small-cell Lung Carcinoma Undergoing Chemoradiotherapy
Low Prognostic Nutritional Index Predicts Poor Clinical Outcomes in Patients with Stage IIIB Non-small-cell Lung Carcinoma Undergoing Chemoradiotherapy Open
Yurday Ozdemir,1 Erkan Topkan,1 Huseyin Mertsoylu,2 Ugur Selek3,4 1Department of Radiation Oncology, Baskent University Medical Faculty, Adana, Turkey; 2Department of Medical Oncology, Baskent University Medical Faculty, Adana, Turkey; 3Sc…
View article: <p>Low Prognostic Nutritional Index Predicts Poor Clinical Outcomes in Patients with Stage IIIB Non-small-cell Lung Carcinoma Undergoing Chemoradiotherapy</p>
Low Prognostic Nutritional Index Predicts Poor Clinical Outcomes in Patients with Stage IIIB Non-small-cell Lung Carcinoma Undergoing Chemoradiotherapy Open
The pretreatment PNI appears to be a robust novel prognostic factor that stratifies patients with stage IIIB NSCLC into two significantly distinct survival groups after CRT.
View article: Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy
Pretreatment Photopenia on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scans Predicts Poor Prognosis in Nasopharyngeal Cancer Patients Undergoing Concurrent Chemoradiotherapy Open
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…
View article: Systemic Inflammation Response Index Predicts Survival Outcomes in Glioblastoma Multiforme Patients Treated with Standard Stupp Protocol
Systemic Inflammation Response Index Predicts Survival Outcomes in Glioblastoma Multiforme Patients Treated with Standard Stupp Protocol Open
Objectives . We endeavored to retrospectively assess the prognostic merit of pretreatment systemic immune response index (SIRI) in glioblastoma multiforme (GBM) patients who underwent postoperative partial brain radiotherapy (RT) and concu…
View article: Preliminary Simulation Study of Carotid Artery and Pharyngeal Constrictor Muscle Sparing-Radiotherapy in Glottic Carcinoma
Preliminary Simulation Study of Carotid Artery and Pharyngeal Constrictor Muscle Sparing-Radiotherapy in Glottic Carcinoma Open
Background: This preliminary simulation study aimed to compare the dosimetric outcomes of carotid arteries (CAs) and pharyngeal constrictor muscle (PCM) in patients with T1N0M0 glottic carcinoma undergoing helical tomotherapy-intensity mod…
View article: Dosimetric Comparison of Lung-Sparing Radiation Therapy between Volumetric Arc Therapy and Helical Tomotherapy for Unresectable Malignant Pleural Mesothelioma
Dosimetric Comparison of Lung-Sparing Radiation Therapy between Volumetric Arc Therapy and Helical Tomotherapy for Unresectable Malignant Pleural Mesothelioma Open
Objective . To compare volumetric arc therapy (VMAT) and helical tomotherapy (HT) plans in terms of dosimetric parameters in positron emission tomography- (PET-) computerized tomography- (CT-) based radiation therapy planning in unresectab…
View article: <p>Prognostic Usefulness Of Advanced Lung Cancer Inflammation Index In Locally-Advanced Pancreatic Carcinoma Patients Treated With Radical Chemoradiotherapy</p>
Prognostic Usefulness Of Advanced Lung Cancer Inflammation Index In Locally-Advanced Pancreatic Carcinoma Patients Treated With Radical Chemoradiotherapy Open
Results of this hypothesis-generating research proposed the pre-CCRT ALI as a novel robust associate of OS and PFS outcomes for LAPC patients undergoing CCRT.
View article: Outcome of Elderly Nasopharyngeal Carcinoma Patients: A Single Center Study
Outcome of Elderly Nasopharyngeal Carcinoma Patients: A Single Center Study Open
View article: Significance of overall concurrent chemoradiotherapy duration on survival outcomes of stage IIIB/C non-small-cell lung carcinoma patients: Analysis of 956 patients
Significance of overall concurrent chemoradiotherapy duration on survival outcomes of stage IIIB/C non-small-cell lung carcinoma patients: Analysis of 956 patients Open
Longer ORTD beyond ≥50 days was associated with significantly poorer OS, LRPFS and PFS outcomes, where reduced locoregional control rates appeared to be the main causative.
View article: Baseline Low Prognostic Nutritional Index Predicts Poor Survival in Locally Advanced Nasopharyngeal Carcinomas Treated With Radical Concurrent Chemoradiotherapy
Baseline Low Prognostic Nutritional Index Predicts Poor Survival in Locally Advanced Nasopharyngeal Carcinomas Treated With Radical Concurrent Chemoradiotherapy Open
Background: To retrospectively assess the impact of prognostic nutritional index (PNI) on survival outcomes of patients with locoregionally advanced nasopharyngeal carcinoma (LA-NPC) treated with concurrent chemoradiotherapy (CCRT). Method…
View article: The Outcomes of Patients with T1n0m0 Glottic Laryngeal Carcinoma Undergoing Radical Radiotherapy
The Outcomes of Patients with T1n0m0 Glottic Laryngeal Carcinoma Undergoing Radical Radiotherapy Open
Amaç: T1N0M0 glottik larenks kanseri (GLK)nedeniyle radyoterapi almış hastalarda sağkalım ve uzun dönem toksisitesonuçlarımız ve ilişkili faktörlerin araştırılması. Gereç ve Yöntem: Ocak 2007-Mayıs 2017 arasında 64,4Gy (2,3 Gy/fx) radyoter…
View article: Baseline hemoglobin <11.0 g/dL has stronger prognostic value than anemia status in nasopharynx cancers treated with chemoradiotherapy
Baseline hemoglobin <11.0 g/dL has stronger prognostic value than anemia status in nasopharynx cancers treated with chemoradiotherapy Open
Background: To retrospectively investigate the influence of pretreatment anemia and hemoglobin levels on the survival of nasopharyngeal carcinoma patients treated with concurrent chemoradiotherapy (C-CRT). Methods: A total of 149 nasophary…
View article: Local control and vertebral compression fractures following stereotactic body radiotherapy for spine metastases
Local control and vertebral compression fractures following stereotactic body radiotherapy for spine metastases Open
This study demonstrated that spine SBRT with doses of 16-18 Gy promises good local control of disease with acceptable VCF rates. Lowest vertebral body collapse score, female gender, and >6 months of bisphosphonate use were significantly as…
View article: The Feasibility of Sparing the Hippocampus and Hypothalamic -Hypophysial Axis During Whole Brain Radiotherapy: A Dosimetric Study
The Feasibility of Sparing the Hippocampus and Hypothalamic -Hypophysial Axis During Whole Brain Radiotherapy: A Dosimetric Study Open
We aimed to investigate the feasibility of simultaneously sparing the hippocampus and hypothalamic-hypophysial axis (HHA) during whole brain radiotherapy (WBRT) using helical tomotherapy.Images of totally 12 patients were analyzed.Hippocam…
View article: Risk Factors for Fatal Pulmonary Hemorrhage following Concurrent Chemoradiotherapy in Stage 3B/C Squamous-Cell Lung Carcinoma Patients
Risk Factors for Fatal Pulmonary Hemorrhage following Concurrent Chemoradiotherapy in Stage 3B/C Squamous-Cell Lung Carcinoma Patients Open
We aimed to identify the fatal pulmonary hemorrhage- (FPH-) related risk factors in stage 3B/C squamous-cell lung carcinoma (SqCLC) patients treated with definitive concurrent chemoradiotherapy (C-CRT). Medical records of 505 stage 3B/C Sq…
View article: Definitive concurrent chemoradiotherapy outcomes in Stage IIIB nonsmall cell lung cancer patients younger than 45 years: A retrospective analysis of 145 patients
Definitive concurrent chemoradiotherapy outcomes in Stage IIIB nonsmall cell lung cancer patients younger than 45 years: A retrospective analysis of 145 patients Open
The encouraging median 24.8 months OS duration observed here in young NSCLC patients accords well with the results of recent landmark locally advanced NSCLC series without age stratification. Other than the well-established T and N stages,…
View article: Stereotaktik radyocerrahi uygulanan vertebra metastazlarında yanıt değerlendirmesinde PET-BT’nin yeri
Stereotaktik radyocerrahi uygulanan vertebra metastazlarında yanıt değerlendirmesinde PET-BT’nin yeri Open
Amaç: Bu çalışmada vertebra metastazlarında stereotaktik radyocerrahi (SRC) sonrası yanıt değerlendirmesinde pozitron emisyon tomografisinin (PET-BT) rolü araştırılmıştır.Gereç ve Yöntem: Geriye dönük olarak 16 veya 18 Gy SRC uygulanmış ha…
View article: P1.17-02 Low Prognostic Nutritional Index Predicts Poor Survival in Stage IIIB Non-Small Cell Lung Cancer Patients Treated with Chemoradiotherapy
P1.17-02 Low Prognostic Nutritional Index Predicts Poor Survival in Stage IIIB Non-Small Cell Lung Cancer Patients Treated with Chemoradiotherapy Open
View article: Lung Cancer Related Central Airway Obstruction: Who Benefits Better from Radiotherapy?
Lung Cancer Related Central Airway Obstruction: Who Benefits Better from Radiotherapy? Open
We aimed to assess the efficacy of external beam radiotherapy (EBRT) in central airway obstruction (CAO) and associated factors for metastatic lung cancer (MLC) patients.Records of 72 MLC patients presenting with CAO were retrospectively a…
View article: Adjuvant uzatılmış temozolamid tedavisinin glioblastoma multiforme hastalarının sağkalımına etkisi
Adjuvant uzatılmış temozolamid tedavisinin glioblastoma multiforme hastalarının sağkalımına etkisi Open
Amaç: Retrospektif bu çalışmanın amacı cerrahi/biyopsi ile glioblastoma multiforme tanısı almış, kemoradyoterapi uygulanmış hastalarda uzatılmış temozolamid kullanımının genel ve progresyonsuz sağkalım etkisini araştırmak olarak belirlendi…
View article: Prognostic and predictive role of FOXP3 positive tumor infiltrating lymphocytes (TILs) in curatively resected non small cell lung cancer other than stage IA
Prognostic and predictive role of FOXP3 positive tumor infiltrating lymphocytes (TILs) in curatively resected non small cell lung cancer other than stage IA Open
Lung cancer is the leading cause of cancer-related mortality and responsible for 1.6 million deaths per year through world-wide. Surgical resection with negative margin combined with the adjuvant therapy [except for stage IA and IB (<4 cm)…
View article: Management of bone metastases with radiation therapy
Management of bone metastases with radiation therapy Open
Bone metastases (BM) are experienced nearly by one of two of all cancer patients either at presentation or during the disease course. As a fundamental rule, because treatment of BM usually aims to palliate, the cardinal objectives of treat…
View article: Radioterapia în managementul metastazelor cerebrale
Radioterapia în managementul metastazelor cerebrale Open
Nearly half of all cancer patients unavoidably experience brain metastases (BM) somewhere during their disease course. Current treatment approaches include neurosurgery, whole-brain radiotherapy (WBRT), stereotactic radiosurgery (SRS), che…
View article: Radiotherapy in management of brain metastases
Radiotherapy in management of brain metastases Open
Nearly half of all cancer patients unavoidably experience brain metastases (BM) somewhere during their disease course. Current treatment approaches include neurosurgery, whole-brain radiotherapy (WBRT), stereotactic radiosurgery (SRS), che…
View article: Rolul radioterapiei în managementul metastazelor osoase
Rolul radioterapiei în managementul metastazelor osoase Open
Bone metastases (BM) are experienced nearly by one of two of all cancer patients either at presentation or during the disease course. As a fundamental rule, because treatment of BM usually aims to palliate, the cardinal objectives of treat…
View article: Effects of vaginal cylinder position on dose distribution in patients with endometrial carcinoma in treatment of vaginal cuff brachytherapy
Effects of vaginal cylinder position on dose distribution in patients with endometrial carcinoma in treatment of vaginal cuff brachytherapy Open
Vaginal cuff brachytherapy in the P and A positions is significantly superior to that in the N position in terms of rectum dosimetry. The bladder dose in the N position is considerably lower than that in the other positions.