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Assoc. Prof. Dr. Hayrettin Dizen General Surgery

Assoc. Prof. Dr. Hayrettin Dizen

✓ Medically verified profile
General Surgery

Assoc. Prof. Dr. Hayrettin Dizen

✓ Medically verified profile
24+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Eskisehir Hospital · Eskişehir
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Assoc. Prof. Dr. Hayrettin Dizen
Profile

About Assoc. Prof. Dr. Hayrettin Dizen

Quick answer

Assoc. Prof. Dr. Hayrettin Dizen is a General Surgery specialist at Acibadem Eskisehir Hospital in Eskişehir with over 24 years of experience.

His clinical focus includes morbid obesity and metabolic disease, bariatric and metabolic surgery, laparoscopic and endoscopic surgery, laparoscopic cholecystectomy, acute appendicitis, thyroid nodules, ultrasound-guided fine needle aspiration cytology, primary hyperparathyroidism, sentinel lymph node biopsy, obstructive jaundice, and gastrosplenic fistula. He consults in Turkish and English and offers online video consultations.

Assoc. Prof. Hayrettin Dizen is a dedicated general surgeon with a strong focus on bariatric, metabolic, endoscopic, and laparoscopic surgery. He completed his general surgery training at Ankara Numune Training and Research Hospital in 2007. Since 2021 he has been part of the surgical team at Acibadem Health Group, where he applies advanced minimally invasive techniques and multidisciplinary care to improve patient outcomes.

M.D. Dizen is an active member of professional societies including the Bariatric and Metabolic Surgery Association, the Endoscopic and Laparoscopic Surgery Association, and the Turkish Surgical Association. His practice emphasizes patient-centered treatment, evidence-based surgical approaches, and ongoing professional development in metabolic and minimally invasive surgery.

Clinical Focus

Areas of Expertise

Conditions treated and procedures performed by this specialist.

Morbid obesityMetabolic diseaseBariatric surgeryMetabolic surgeryLaparoscopic surgeryEndoscopic surgeryLaparoscopic cholecystectomyAcute appendicitisThyroid nodulesUltrasound-guided fine needle aspiration cytologyPrimary hyperparathyroidismSentinel lymph node biopsyObstructive jaundiceGastrosplenic fistula
Background

Education

  • 2007Ankara Numune Training and Research Hospital General Surgery
  • 2002Uludag University Faculty of Medicine
Career

Professional Experience

  • 2021Acibadem Health Group
  • 2019–2021ESKİŞEHİR OSMANGAZI UNIVERSTESİES / GENERAL SURGERY ABD / SURGICAL ONCOLOGY BD / AR. VIS. DR.
  • 2015–2019ESKİŞEHİR YUNUS EMRE STATE HOSPITAL /GENERAL SURGERY CLINIC / SPECIALIST DR.
  • 2013–2015ESKİŞEHİR YUNUS EMRE STATE HOSPITAL / CHIEF PHYSICIAN
  • 2010–2013ESKİŞEHİR YUNUS EMRE STATE HOSPITAL /GENERAL SURGERY CLINIC / SPECIALIST DR.
  • 2008–2010ANKARA NUMUNE EDUCATION AND RESEARCH HOSPITAL / 7TH GENERAL SURGERY CLINIC / SPECIALIST DR.
  • 2007–2008ANKARA NUMUNE EDUCATION AND RESEARCH HOSPITAL / 5TH GENERAL SURGERY CLINIC / SPECIALIST DR.
  • 2002–2007ANKARA NUMUNE EDUCATION AND RESEARCH HOSPITAL / 5TH GENERAL SURGERY CLINIC / ASSISTANT
Affiliations

Professional Memberships

  • Bariatric and Metabolic Surgery Association
  • Endoscopic and Laparoscopic Surgery Association
  • Turkish Surgical Association
Research

Selected Publications

  • Could a Sentinel Lymph Node Biopsy Be Performed with Isolated Methylene Blue Injection in a Patient with a History of Skin-Sparing Mastectomy and Prosthetic Reconstruction? Arch Curr Med Res 2020; 1(1):34-37 Ümit Özdemir, İhsan Burak Karakaya, Ahmet Karayiğit, Dursun Burak Özdemir, Hayrettin Dizen
  • Parathyroid hormone in washout fluid seems to be superior to cytology for localization of the lesion in MIBI-negative patients with primary hyperparathyroidism Turk J Med Sci. 2017;47(6):1703-1707. Published 2017 Dec 19. doi:10.3906/sag-1612-124 Cansu GB, Taskiran B, Dizen H, Peker Cengiz B.
  • Russell Body Gastritis: an Unusually Presentation of the Chronic Gastritis Iranian Journal of Pathology 11.5 (2016): 452. PEKER, Betül CENGIZ, Fatma Secil KIRDOK, and Hayrettin DIZEN
  • RECEIVER OPERATING CHARACTERISTIC ANALYSIS AND DISCRIMINATIVE EFFECT OF NEUTROPHIL-TO-LYMPHOCYTE RATIO IN PATIENTS WITH SUSPECTED APPENDICITIS ACTA MEDICA MEDITERRANEA, 32(3), 799-804. (2016) Ozturk, S., Unver, M., Yoldas, O., Dizen, H., Erol, V., Bozbiyik, O., … & Akbulut, G.
  • The effects of obstructive jaundice on the brain: An experimental study Asian journal of surgery 39.3 (2016): 155-163. Dilektasli, Evren, et al.
  • Ultrasound Guided Fine Needle Aspiration Cytology in Thyroid Nodules: Cytohistologic Correlation Medical Journal of Mugla Sitki Kocman University 2015;2(3):7-11 Çetin İmamoğlu, Fatma Gül İmamoğlu, Hayrettin Dizen, Asuman Argon, Zehra Hilal Adıbelli, Betül Peker Cengiz, Cihan Düzgöl, Mehmet Çalan, Erdem Arslan,
  • Tuleramia? Because of A Case with Rabbit Nail? Journal of Internal Medicine 2014. Pınar Yıldız, Mustafa Yıldız, Hayrettin Dizen
  • Is the number of trocars important in laparoscopic cholecystectomy? Eur J Endosc Laparosc Surg 1 (2014): 24-29. Moran, Münevver, et al.
  • Spontaneous gastrosplenic fistula resulting from primary gastric lymphoma: case report and review of the literature Balkan Medical Journal 2011.2 (2011): 205-208. Moran, Münevver, et al.
  • Effect Of The Season On The Diagnosis Of Acute Appendicitis Middle East Medicine 2010 mart 2:1 Özalp N, İbili İ, Ocak S, Tez M, Dizen H, Koç M.
Good to Know

Frequently Asked Questions

What is Dr. Hayrettin Dizen's specialty?
Dr. Hayrettin Dizen is a specialist in General Surgery at Acibadem. For a personalised assessment, the Acibadem international patient team can review your medical history and reports and explain the suitable next steps.
Which hospital does Dr. Hayrettin Dizen practise at?
Dr. Hayrettin Dizen sees patients at Acibadem Eskisehir Hospital in Eskişehir. The international patient team can confirm current availability and help you plan a consultation or visit.
What languages can I use when consulting Dr. Hayrettin Dizen?
Consultations with Dr. Hayrettin Dizen are supported in Turkish and English. In addition, Acibadem provides multilingual coordination and interpreter support so international patients can communicate clearly throughout their care.
How can I book an appointment with Dr. Hayrettin Dizen?
You can request an appointment with Dr. Hayrettin Dizen using the appointment form on this page, or by contacting the Acibadem international patient team by phone or WhatsApp. After you share your details, the team checks availability and confirms your appointment, usually within 24 hours.
Is an online video consultation available with Dr. Hayrettin Dizen?
Yes. Dr. Hayrettin Dizen offers online video consultations, so you can discuss your condition and reports with the specialist before making any travel arrangements. The international patient team can help you schedule a secure video visit.
How many years of experience does Dr. Hayrettin Dizen have?
Dr. Hayrettin Dizen has around 24 years of professional experience in General Surgery. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Hayrettin Dizen?
Yes. Acibadem supports international patients end to end — from the first consultation and treatment planning through appointment scheduling, interpretation during the stay and follow-up after returning home. Sharing your case for an initial assessment is free of charge.
How do I get a second opinion involving Dr. Hayrettin Dizen?
You can request an independent review of your diagnosis and proposed treatment. Share your medical reports through the consultation or "Ask a Doctor" form on this site, and the team will arrange a specialist review and explain the available options.
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