Özgen Ahmet Yıldırım

ORCID: 0000-0002-4139-067X
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About
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Research Areas
  • Pancreatic and Hepatic Oncology Research
  • Peptidase Inhibition and Analysis
  • Cancer survivorship and care
  • Family Support in Illness
  • Radiomics and Machine Learning in Medical Imaging
  • Cancer Diagnosis and Treatment
  • Palliative Care and End-of-Life Issues
  • Family Caregiving in Mental Illness
  • Lung Cancer Treatments and Mutations
  • Inflammatory Biomarkers in Disease Prognosis
  • Protease and Inhibitor Mechanisms
  • Gastric Cancer Management and Outcomes
  • Prostate Cancer Treatment and Research
  • Occupational and environmental lung diseases
  • Intraperitoneal and Appendiceal Malignancies
  • Neutropenia and Cancer Infections
  • Medical Imaging and Pathology Studies
  • Lung Cancer Research Studies
  • Drug-Induced Adverse Reactions
  • Gastrointestinal Tumor Research and Treatment
  • Neuroendocrine Tumor Research Advances
  • Metastasis and carcinoma case studies
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Urinary Tract Infections Management
  • MRI in cancer diagnosis

University of Health Science
2022-2023

Sağlık Bilimleri Üniversitesi
2022-2023

Ankara Onkoloji Eğitim ve Araştırma Hastanesi
2022-2023

Gazi University
2023

University of Health Sciences
2021-2022

Diyarbakır Gazi Yaşargil Eğitim ve Araştırma Hastanesi
2021-2022

Diyarbakır Askeri Hastanesi
2021

Objective In this study, we aimed to evaluate the diagnostic sensitivities of 68 Ga-FAPI-04 PET/CT and 18 F-FDG in primary tumor, nodal, peritoneal distant organ metastases recurrent gastric adenocarcinoma (GAc) with patient lesion-based comparison. Materials method Twenty-one patients histopathologically proven newly diagnosed or GAc who underwent imaging were included study. Both techniques evaluated visually according intensity organ-based uptake. SUVmax tumor-to-background ratio (TBR)...

10.1097/mnm.0000000000001489 article EN Nuclear Medicine Communications 2021-10-05

ABS TRACT Data on the management of Grade 3-4 visual disorders due to lorlatinib remain limited.We presented two cases Grade-4 vision loss lorlatinib.We interrupted and initiated a pulse steroid in these patients.In our first patient, function improvement was observed three days after treatment, with complete recovery at end month.However, second although returned extent limited from 3 m, no further noted.In both patients, continued reduced dose because favorable response improvement.In...

10.37047/jos.2022-92714 article EN cc-by-nc-nd Journal of Oncological Sciences 2023-01-01

In this study, we aimed to evaluate the concordance of biochemical treatment response with gallium-68-prostate specific membrane antigen (

10.1967/s002449912303 article EN Hellenic Journal of Nuclear Medicine 2021-04-19

To evaluate ICIs related dry eye and mouth in nivolumab therapy, 24 patients receiving (group 1), 30 remission without treatment for 6 months 2), healthy participants 3) were cross-sectionally examined. Schirmer's 1, 2, TSH blood tests, serological analysis, salivary flow scintigraphy minor-salivary gland biopsy performed. tests performed with anesthetic (1) (2). scores lower group 1 more frequent reduced tear production (p < 0.001). levels negatively correlated scores. Functional...

10.1080/07357907.2021.1971241 article EN Cancer Investigation 2021-08-20

With the development and widely use of HER2 targeted therapies, expressing metastatic breast cancer have no longer dismal prognosis as once expected. The combination therapies with chemotherapatic agents prolongs overall survival. Pertuzumab is a new monoclonal antibody molecule that binds to extracellular portion works by inhibiting homo- heterodimerization. aim this study document real life data toxicities seen in patients treated first line trastuzumab-pertuzumab therapy. A retrospective...

10.1016/j.jons.2017.12.002 article EN cc-by-nc-nd Journal of Oncological Sciences 2017-12-27

Aim: To predict the caregiver burden based on clinical characteristics of cancer patients and social economic circumstances caregiver, to evaluate influence this caregiver's quality life. Material Method: The effects findings 411 followed up treated in our clinic between January 2020 March 2021, Zarit questionnaire score filled by caregivers were analyzed. In addition, obtained was researched how influenced Short-form 36 life caregivers. Results: study, a statistically significant...

10.32322/jhsm.1025215 article EN cc-by-nc-nd Journal of Health Sciences and Medicine 2022-01-17

We aimed to investigate the roles of inflammatory parameters, including neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte (PLR), lymphocyte/monocyte (LMR), and C-reactive protein/albumin (CAR), in predicting disease recurrence patients with stage IIA (T3N0M0) high microsatellite instability microsatellite-stable colon cancer who had no risk factors associated relapse.We evaluated 155 followed 3 hospitals Turkey between February 2009 March 2020. These relapse. None received adjuvant...

10.1080/00325481.2021.1934493 article EN Postgraduate Medicine 2021-05-25

Objective We evaluated the effect of branch cancer specialist (medical oncologist versus surgical oncologist) who initially examines a patient on treatment delay. The objective was to evaluate whether oncology and medical clinics, which have different operating styles, impact timeliness treatment. Additionally, we investigated prognostic clinical treatment-related factors in patients with esophageal treated at our center. Methods This retrospective single-center study. resection type (R0 or...

10.7759/cureus.22286 article EN Cureus 2022-02-16

ÖZETGİRİŞ ve AMAÇ: Sitoredüktif cerrahi (SRC) hipertermik intraperitoneal kemoterapi (HIPEC) peritoneal mezotelyoma (PM) için önerilen tedavi yaklaşımıdır.Burada PM multimodal

10.5505/aot.2020.71931 article TR Acta Oncologica Turcica 2020-01-01

Introduction The geriatric patient population diagnosed with extensive stage small cell lung cancer (SCLC) is underrepresented in clinical studies. We aimed to evaluate the clinicopathological characteristics, first-line treatment patterns and outcomes of patients aged 65 years or older SCLC. Material methods In this multicenter, retrospective cohort study, older, extensive-stage SCLC, between January 2009 December 2021 were included. Patients who under age at time diagnosis did not develop...

10.7759/cureus.35710 article EN Cureus 2023-03-02

Aim: Pancreatic adenocarcinoma (PA) is the seventh most common cause of cancer-related mortality. Our primary endpoint study was to determine relationship between albumin/globulin ratio (AGR) and progression-free overall survival (PFS OS) in second-line treatment after FOLFIRINOX. secondary assess side effects dose intensity with type AGR. Material Method: PA patients who followed-up January 2014 2021 were evaluated retrospectively. Age, gender, ECOG score AGR recorded at beginning...

10.32322/jhsm.1011658 article EN cc-by-nc-nd Journal of Health Sciences and Medicine 2022-01-17

Background/Aim: Cancer and tuberculosis are common in the world, intersection of these two diseases affects oncology practice inevitably. Fortunately, co-occurrence cancer is rare there no guidelines for management therapy patients. The information on patients obtained from small-scaled studies. This study aimed to question efficacy safety treatment receiving chemotherapy. Methods: Twenty-two who were treated with chemotherapy due followed up concurrent Diyarbakır Gazi Yaşargil Training...

10.28982/josam.1015461 article EN Journal of Surgery and Medicine 2022-03-01

Abstract Purpose: To investigate the caregiver burden and quality of life (QoL) patients with metastatic prostate cancer. The relationship between questionnaire results medical, socioeconomic, disease treatment related factors were evaluated. Methods: One hundred twenty one cancer caregivers enrolled in this cross-sectional study. Short Form 36 (SF-36) questionnaires Zarit interviews (ZCBI) conducted their seperately. Patients’ comorbidities, presence bone visceral metastases, events,...

10.21203/rs.3.rs-359207/v1 preprint EN cc-by Research Square (Research Square) 2021-04-08

Objective: To investigate the caregiver burden and quality of life (QoL) patients with metastatic prostate cancer and, to evaluate relationship between questionnaire results medical, socioeconomic, disease treatment related factors patients.&#x0D; Methods: One hundred twenty one patients, caregivers were enrolled in this cross-sectional study. Patients who had at least bone, lymph node or visceral metastasis undergone androgen deprivation chemotherapy treatments for 3 months included. Short...

10.5798/dicletip.1037634 article EN Dicle Medical Journal / Dicle Tip Dergisi 2021-12-01
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