Yazar "0000-0001-8120-7123" için Tıp Fakültesi / Faculty of Medicine listeleme
-
Comment on: Required Time for Pre-Oncological Dental Management-A Rapid Review of the Literature
Topkan, Erkan; Somay, Efsun; Yilmaz, Busra; Kucuk, Ahmet (2022) -
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
Topkan, Erkan; Ozdemir, Yurday; Guler, Ozan Cem; Kucuk, Ahmet; Besen, Ali Ayberk; Mertsoylu, Huseyin; Sezen, Duygu; Akdemir, Eyub Yasar; Sezer, Ahmet; Bolukbasi, Yasemin; Pehlivan, Berrin; Selek, Ugur (2020)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 ... -
Definitive concurrent chemoradiotherapy outcomes in Stage IIIB nonsmall cell lung cancer patients younger than 45 years: A retrospective analysis of 145 patients
Topkan, Erkan; Guler, Ozan Cem; Ozdemir, Yurday (2020)Purpose: To assess the survival outcomes and prognostic factors of young (<= 45 years) Stage IIIB nonsmall cell lung cancer (NSCLC) patients treated with definitive concurrent chemoradiotherapy (C-CRT). Materials and ... -
Effective Resolution of Lung Cancer Related Tracheal and/or Bronchial Obstruction with External Beam Radiotherapy
Topkan, Erkan; Yildirim, Berna Akkus; Ozdemir, Yurday; Guler, Ozan C.; Kose, Fatih (2015) -
Elective Nodal Irradiation Does Not Alter Isolated Nodal Failure and Survival Outcomes in Stage III NSCLC Patients Undergoing Chemoradiotherapy
Topkan, Erkan; Yildirim, Berna Akkus; Guler, Ozanc; Ozdemir, Yurday (2015) -
Epoetin receptor status may alter the outcomes in head and neck cancers treated with radiotherapy and darbepoetin-alpha
Topkan, Erkan; Yildirim, Berna Akkus (2019) -
Factors Associated with Brain Metastasis Development in Radically Treated Stage IIIB Non-Small Cell Lung Cancer Patients
Topkan, Erkan; Yildirim, Berna Akkus; Guler, Ozan C.; Ozdemir, Yurday (2015) -
High Pretreatment Platelet-to-Albumin Ratio Predicts Poor Survival Results in Locally Advanced Nasopharyngeal Cancers Treated with Chemoradiotherapy
Haksoyler, Veysel; Topkan, Erkan (2021)Purpose: In a lack of similar research, we assessed the prognostic utility of pretreatment platelet-to-albumin ratio (PAR) in locally advanced nasopharyngeal carcinoma (LANPC) patients managed with concurrent chemoradiotherapy ... -
Hybrid Arc Could Combine the Benefits of IMRT and VMAT to Deliver a Fast, Conformal, Homogeneous Treatment in Non-Small Cell Lung Cancer without Limitations of Low Dose Bath: A Planning Study
Topkan, Erkan; Saglam, Yüce; Bolukbasi, Yasemin; Alpan, Vildan; Kirsner, Steve; Ballo, Matthew; Chang, Joe Y.; Bingolbali, Ayhan; Selek, Ugur (2017)Intensity Modulated Radiotherapy (IMRT, step and shoot) is emerging as the standard of care in non-small cell lung cancer (NSCLC) patient treatments. Volumetric Arc Therapy (VMAT) delivered with two arcs offers fast and ... -
Impact of Presence and Degree of Pretreatment Weight Loss in Locally-Advanced Pancreatic Cancer Patients Treated with Definitive Concurrent Chemoradiotherapy
Yildirim, Berna Akkus; Ozdemir, Yurday; Colakoglu, Tamer; Topkan, Erkan (2016)Background: To assess the impact of the presence and degree of pretreatment weight loss (WL) on the survival of locally-advanced pancreas cancer (LAPC) patients treated with concurrent chemoradiotherapy (C-CRT). Methods: ... -
The Influence of Systemic Inflammation Response Index on Survival Outcomes of Limited-Stage Small-Cell Lung Cancer Patients Treated with Concurrent Chemoradiotherapy
Kucuk, Ahmet; Ozkan, Emine Elif; Eskici Oztep, Sukran; Mertsoylu, Huseyin; Pehlivan, Berrin; Selek, Ugur; Topkan, Erkan (2020)Background. Recent studies have indicated that the systemic inflammation response index (SIRI) can efficiently predict survival outcomes in various tumor types. Thusly, in absence of comparable investigations in limited-stage ... -
Low Advanced Lung Cancer Inflammation Index Predicts Poor Prognosis in Locally Advanced Nasopharyngeal Carcinoma Patients Treated with Definitive Concurrent Chemoradiotherapy
Topkan, Erkan; Ozdemir, Yurday; Kucuk, Ahmet; Guler, Ozan Cem; Sezer, Ahmet; Besen, Ali Ayberk; Mertsoylu, Huseyin; Senyurek, Sukran; Kilic Durankus, Nulifer; Bolukbasi, Yasemin; Selek, Ugur; Pehlivan, Berrin (2020)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 ... -
Low Pre-Chemoradiotherapy Pan-Immune-Inflammation Value (PIV) Measures Predict Better Survival Outcomes in Locally Advanced Pancreatic Adenocarcinomas
Topkan, Erkan; Selek, Ugur; Kucuk, Ahmet; Pehlivan, Berrin (2022)Objective: This study sought to determine whether pretreatment pan-immune-inflammation value (PIV) could be used to predict prognosis in patients with locally advanced pancreatic adenocarcinoma (LA-PAC) following definitive ... -
Low Prognostic Nutritional Index Predicts Poor Clinical Outcomes in Patients with Stage IIIB Non-small-cell Lung Carcinoma Undergoing Chemoradiotherapy
Ozdemir, Yurday; Topkan, Erkan; Mertsoylu, Huseyin; Selek, Ugur (2020)Purpose: To investigate the prognostic utility of the prognostic nutritional index (PNI) in stage IIIB non-small-cell lung carcinoma (NSCLC) patients undergoing concurrent chemoradiotherapy (CRT). Methods: A total of ... -
Low Systemic Inflammation Response Index Predicts Good Prognosis in Locally Advanced Pancreatic Carcinoma Patients Treated with Concurrent Chemoradiotherapy
Topkan, Erkan; Mertsoylu, Huseyin; Kucuk, Ahmet; Besen, Ali Ayberk; Sezer, Ahmet; Sezen, Duygu; Bolukbasi, Yasemin; Selek, Ugur; Pehlivan, Berrin (2020)Background. We investigated the prognostic significance of pretreatment systemic inflammation response index (SIRI) in locally advanced pancreatic carcinoma (LAPC) patients treated with concurrent chemoradiotherapy (CRT). ... -
Lung Cancer Related Central Airway Obstruction: Who Benefits Better from Radiotherapy?
Ozdemir, Yurday; Yildirim, Berna A.; Topkan, Erkan (2018)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 ... -
Novel Clinically Weight-Optimized Dynamic Conformal Arcs (WO-DC A) for Liver SBRT: A Comparison with Volumetric Modulated Arc Therapy (VMAT)
Topkan, Erkan (2021)Purpose: To evaluate the feasibility of shortening the duration of liver stereotactic radiotherapy (SBRT) without jeopardizing dosimetry or conformity by utilizing weight-optimized dynamic conformal arcs (WO-DCA) as opposed ... -
Potential for Tumor Volume and Site in Prediction of the Outcomes in Recurrent or Second Primary Head and Neck Cancers
Yildirim, Berna Akkus; Topkan, Erkan (2018) -
Prechemoradiotherapy Systemic Inflammation Response Index Stratifies Stage IIIB/C Non-Small-Cell Lung Cancer Patients into Three Prognostic Groups: A Propensity Score-Matching Analysis
Topkan, Erkan; Selek, Ugur; Kucuk, Ahmet; Haksoyler, Veysel; Ozdemir, Yurday; Sezen, Duygu; Mertsoylu, Huseyin; Besen, Ali Ayberk; Bolukbasi, Yasemin; Ozyilkan, Ozgur; Pehlivan, Berrin (2021)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. ... -
Preliminary Simulation Study of Carotid Artery and Pharyngeal Constrictor Muscle Sparing-Radiotherapy in Glottic Carcinoma
Ozdemir, Yurday; Acibuci, Ibrahim; Selek, Ugur; Topkan, Erkan (2020)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 ...