Born on January 13, 1985 in Ankara, Assoc. Prof. Dr. Özhan Çetindağ completed his primary and secondary school education in his hometown. After successfully graduating from Erciyes University Faculty of Medicine in 2010, he began his professional career as a general practitioner in Şereflikoçhisar. In 2011, he passed the Medical Specialist Examination (TUS) and started his specialization in General Surgery.

After completing his specialization at Izmir Tepecik Training and Research Hospital in 2016, he obtained the title of General Surgery Specialist. From 2016 to 2018, he successfully worked at Izmir Torbalı State Hospital and performed pioneering surgeries including rectal cancer surgery, laparoscopic reflux surgery and breast reduction surgery. His outstanding surgeries gained recognition in national and local media.

From 2018 to 2019, Assoc. Prof. Dr. Çetindağ applied his expertise as a general surgery specialist at Izmir Suat Seren Training and Research Hospital. In 2019, he ranked second in Turkey in the Specialist Examination (YDUS) and was given the opportunity to specialize in the Department of Surgical Oncology at Ankara University Faculty of Medicine. In the same year, he achieved second place in the Turkish Surgical Association Qualifying Examination and received a Certificate of Qualification.

Between 2020 and 2022, Dr. Çetindağ devoted himself to surgical oncology at Ankara University. In addition to his interest in cancer surgery and bariatric surgery, his specialties include breast surgery, thyroid surgery, anal fistula, gastric balloon and gastric botox applications. Assoc. Prof. Dr. Çetindağ always strives to pursue innovative approaches in surgery and contributes to the advancement of medical practice through his expertise.

Scientific Publications

Dr. Özhan Çetindağ has 21 scientific articles published in national and international scientific journals. Of these, 14 are international and 7 are national publications. He has also presented 6 scientific papers at national and international congresses and has authored 2 book chapters in academic books published in the field of general surgery.

International Publications

  • The Predictive Value, Sensitivity, Specificity, and Accuracy of PET CT in the Evaluation of Axillary Metastases in Breast Cancer – Çetindağ Ö, Avşar G, Hakseven M, Deryol R, Ertekin SÇ, Karasoy D, Eroğlu A, Bayar S. European Review for Medical and Pharmacological Sciences, 27(20), 10008–10015. Q3.
  • Prospective Study on Avoiding Seroma Formation by Flap Fixation After Modified Radical Mastectomy – Hakseven M, Avşar G, Çetindağ Ö, Deryol R, Benk MŞ, Sırgancı G, Çulcu S, Ünal AE, Bayar S. SAGE Publications. DOI: 10.1177/00031348231175497. Q4.
  • Assessment of Surgical and Quality-of-Life Outcomes Between Laparoscopic Versus Open Inguinal Hernia Repair in Geriatric Patients – Ertekin SÇ, Çetindağ Ö. Journal of Laparoendoscopic & Advanced Surgical Techniques, 33. DOI: 10.1089/lap.2023.0147. Q4.
  • Valor Pronóstico del Índice de Proliferación KI-67 en Cánceres de Mama Luminales – Dokcu Ş, Çaparlar MA, Çetindağ Ö, Hakseven M, Eroğlu A. Publicidad Permanyer, SLU, 91. DOI: 10.24875/CIRU.22000043. Q4.
  • Management of Aberrant Left Hepatic Artery During Laparoscopic Gastrectomy and Consequences – Hakseven M, Çetindağ Ö, Avşar G, Deryol R, Dokcu Ş, Çulcu S, Akbulut S, Bayar S, Ünal AE, Demirci S. Mary Ann Liebert Inc., 32. DOI: 10.1089/lap.2022.0005. Q4.
  • Pancreatic Body and Tail Cancer: Is Laparoscopic Surgery an Effective Method? – Gojayev A, Celasin H, Çetindağ Ö, Çulcu S, Ünal AE, Demirci S. Journal of Medicine and Surgical Research. DOI: 10.46327/msrjg.1.000000000000226.
  • Comparison of Short- and Long-Term Outcomes of Laparoscopic and Open Right Hemicolectomy for Colon Cancer – Gojayev A, Mercan Ü, Çetindağ Ö, Akbulut S, Ünal AE, Demirci S. Polish Journal of Surgery, 94. DOI: 10.5604/01.3001.0015.7344.
  • Comparison of Different Interval Times of Limberg Flap Reconstruction After Pilonidal Sinus Abscess – Halaçlar B, Çetindağ Ö. European Review for Medical and Pharmacological Sciences. DOI: 10.26355/eurrev_202212_30576.
  • Characteristics and Management of Consultations Requested From the Emergency Department and Other Outpatient Clinics in a Surgical Oncology Clinic – Dokcu Ş, Çaparlar MA, Çetindağ Ö, Hakseven M, Demirci S. Annals of Clinical and Analytical Medicine, 13. DOI: 10.4328/acam.21157.
  • The Effect and Clinical Significance of Using Nathanson Liver Retractor on Liver Function Tests in Laparoscopic Gastric Cancer Surgery – Gojayev A, Yüksel C, Mercan Ü, Çaparlar MA, Çetindağ Ö, Akbulut S, Ünal AE, Demirci S, Bayar S. Polish Journal of Surgery, 94. DOI: 10.5604/01.3001.0015.3544.
  • Predictive Significance of Neutrophil to Lymphocyte Ratio and Platelet to Lymphocyte Ratio in Patients Undergoing Stereotactic Breast Marking – Çaparlar MA, Çetindağ Ö, Eroğlu A. Annals of Clinical and Analytical Medicine, 12(12), 1411–1414. DOI: 10.4328/ACAM.20785.
  • Outcomes of Early Cholecystectomy (Within 7 Days of Admission) for Acute Cholecystitis According to Diagnosis and Severity Grading by Tokyo 2013 Guideline – Sert İ, İpekçi F, Engin Ö, Karaoğlan M, Çetindağ Ö. Turkish Journal of Surgery, 33. DOI: 10.5152/UCD.2016.3305.
  • Visceral Organ Resection During Femoral Hernia Surgery Is a Predictor of Morbidity – Çalık B, Karaman K, Atcı R, Çetindağ Ö, Uğurlu L, Aydın C, Akbulut G. International College of Surgeons, 100. DOI: 10.9738/INTSURG-D-14-00036.1. Q4.
  • Mesenteric Fibromyoma Mimicking a Colon Tumor: A Diagnostic Dilemma – Öztürk Ş, Çetindağ Ö, Ünver M, Uncel M, Kibar Öztürk B, Kebabçı E, Bayol Ü. Science Publishing Group, 2. DOI: 10.11648/j.js.20140206.12.

National Publications

  • A New Marker in Post-Pancreatectomy Fistulas: Hypophosphatemia – Çetindağ Ö, Ünal AE. Turkish Journal of Clinics and Laboratory, 14. DOI: 10.18663/tjcl.1346797.
  • Factors Affecting Stoma Diameter in Colorectal Surgery – Dokcu Ş, Balcı B, Çaparlar MA, Çetindağ Ö, Hakseven M. Ege Klinikleri Tıp Dergisi.
  • The Relationship Between Drain Removal Day and Breast Weight in Patients with Breast Cancer After Mastectomy: A Retrospective Study – Dokcu Ş, Çaparlar MA, Çetindağ Ö, Eroğlu A. Türkiye Klinikleri Tıp Bilimleri Dergisi, 42. DOI: 10.5336/medsci.2021-84896.
  • The Relationship Between Menopausal Status and Molecular Breast Cancer Subtypes – Dokcu Ş, Çaparlar MA, Çetindağ Ö, Hakseven M, Eroğlu A. Journal of Medical, 4. DOI: 10.38175/phnx.1059347.
  • The Relation Between Helicobacter Pylori and Symptomatic Cholelithiasis – Çetindağ Ö, Balcı B, Sert İ, Ekmekçi S. İzmir Tepecik Eğitim Hastanesi Dergisi, 28(3), 197–202. DOI: 10.5222/terh.2018.68094.
  • A Rare Cause of Acute Appendicitis: Infestation of Enterobius Vermicularis – Balcı B, Üstün M, Çetindağ Ö, Karadeniz T, Emiroğlu M, Aydın C. Galenos Publishing. DOI: 10.5222/terh.2018.069.
  • Intestinal Tuberculosis Can Be Easily Misdiagnosed as Crohn’s Disease – Öksüz P, Uncel M, Albayrak H, Çetindağ Ö, Kaya Ö, Özgüzer A, Diniz Ünlü AG. Galenos Publishing. DOI: 10.5222/terh.2017.243.

Scientific Presentations

National Presentations

  • Rare Metastases of Follicular Thyroid Cancer During the COVID-19 Pandemic: Two Case Reports – Çetindağ Özhan, Erözkan Kamil. 6th National Surgical Oncology Congress. Abstract presentation.

International Presentations

  • Comparison of Crystallized Phenol and Surgical Approaches in the Treatment of Pilonidal Sinus – Çetindağ Özhan. International Topkapı Congress II. Abstract presentation.
  • Effectiveness of Sinus Laser Treatment in Sacrococcygeal Pilonidal Sinus Disease – Çetindağ Özhan. 8th International Congress of Sciences and Innovation. Abstract presentation.
  • The Role of Endoscopic Intragastric Botulinum Toxin-A and Gastric Balloon in Obesity Treatment – Çetindağ Özhan. 6th International Ankara Multidisciplinary Studies Congress. Abstract presentation.
  • Evaluation of the Veress Needle as a Liver Retraction Technique in Laparoscopic Sleeve Gastrectomy – Çetindağ Özhan, Ertekin Süleyman Çağlar. 8th International Congress of Obesity and Metabolic Surgery & 3rd National Congress of Metabolic and Bariatric Surgery Dietetics. Abstract presentation.
  • A Difficult Case Management: Surgical Treatment of Radiotherapy Secondary Angiosarcoma in the Breast – Çetindağ Özhan, Hakseven Musluh, Çaparlar Mehmet Ali, Eroğlu Aydan, Sak Serpil. 2nd International Congress of Multidisciplinary Studies in Medical Sciences. Abstract presentation.

Book Chapters

  • Detection of an Ectopic Parathyroid Gland Within Ectopic Intrathyroidal Thymic Tissue During Thyroidectomy for Thyroid Cancer – General Surgery Through Clinical Cases. Akademisyen Publishing. Editors: Hakan Sözel, Ekmel Tezel. ISBN: 978-625-399-403-7.
  • A Rare Condition: Perforated Stump Appendicitis – General Surgery Through Clinical Cases. Akademisyen Publishing. Editors: Hakan Sözel, Ekmel Tezel. ISBN: 978-625-399-403-7.

Teaching and Educational Activities

  • Ulcerative Colitis – Medical Specialty Training
  • Wound Infections – Medical Specialty Training
  • Benign Gastric Diseases – Medical Specialty Training
  • Esophageal Diverticula – Medical Specialty Training
  • Pancreatic Cystic Neoplasms – Medical Specialty Training
  • Crohn’s Disease – Medical Specialty Training
  • Colon Cancer – Medical Specialty Training

Certificates and Professional Training

  • Turkish Surgical Board Certification – Turkish Surgical Association, 21 December 2019.
  • Turkish Surgical Association Endoscopy Certificate – Ankara University Faculty of Medicine, Department of General Surgery / Division of Surgical Oncology, 29 June 2021.
  • 8th International Sciences and Innovation Congress Certificate – International Science and Art Research Center, Ankara, 14–15 October 2023.
  • Bariatric Surgery Course – Organized by the Turkish Obesity Surgery Association, Fırat University Department of General Surgery, 1 February 2018.