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Department of metabolic and bariatric (weight loss) surgery

Dr. Murat Ustun
general surgery, bariatric surgery

About the department

The department of metabolic and bariatric (weight loss) surgery at Istanbul Bariatric Center provides a wide range of surgical procedures for obese patients, including post-bariatric plastic and reconstructive surgery. The surgeons were among the first to apply advanced bariatric surgery techniques in the country, such as laparoscopic sleeve gastrectomy and gastric bypass. The department is a leader in its field due to the experience of the medical team and the low complication rate. Modern endoscopic techniques, body mass index measurements, and laboratory diagnostics of lipid and blood sugar levels are used for diagnosis. Treatment is administered on an interdisciplinary basis in collaboration with gastroenterologists, nutritionists, surgeons, psychologists and physiotherapists. The main goal of the medical team is to improve the patient's appearance and avoid developing diseases associated with obesity.

Specialists resort to surgical treatment only if diet, drugs, exercise, and behavioural therapy are ineffective. For the surgical treatment, doctors spare minimally invasive techniques, including laparoscopic methods, single-site surgery, robotic surgery and endoscopic procedures. In addition, surgeons offer post-bariatric aesthetic surgery, which is performed to correct sagging skin. Abdominoplasty is achieved not only for obese patients but also for women after pregnancy, after open surgeries and injuries, and for patients with loose, sagging skin.

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Treatment and diagnostic focus of the department


  • Obesity
  • Metabolic syndrome
  • Arterial hypertension
  • Violation of fat metabolism
  • Hormonal disorders
  • Genetic predisposition
  • Atherosclerosis
  • Diabetes mellitus
  • Psychological eating disorders


  • Anamnesis 
  • Physical examination 
  • Body mass index (measures the weight status of the body)
  • Ultrasound examination 
  • Computed tomography (CT scan) 
  • Magnetic resonance imaging (MRI) 
  • Endoscopic procedures (gastroscopy) 
  • Lipid profile (to find abnormalities in lipids, such as cholesterol and triglycerides)
  • Hormone panel (to evaluate for hormonal imbalances)
  • Laboratory and biochemical tests 


  • Pharmacotherapy 
  • Diet therapy 
  • Behavioural therapy 
  • Physical exercises 
  • Endoscopic gastric balloon
  • Endoscopic stomach reduction (Apollo)
  • Gastric sleeve surgery
  • Gastric bypass surgery
  • Mini gastric bypass surgery
  • Diabetes surgery
  • Duodenal switch
  • Revisional surgery
  • Abdominoplasty
  • Other treatment services
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Doctor profile


  • 1986 - 1992 Medical Doctor Training at Ege University Medical Faculty 
  • 1992 - 1996 General Surgery Specialization Training at Ankara Education and Research Hospital
  • 1996 General Surgery Specialist at SSK Ankara Education and Research Hospital
  • Completed HÜFAM-approved Hospital Management and Total Quality Management certificate training


  • 1996 - 1999 Worked especially in the field of renal transplantation and laparoscopic surgery
  • 1999 - 2001 Established the first laparoscopic surgery unit of the regional hospital, SSK Zonguldak Regional Hospital
  • since 2001 Private health sector in Istanbul
  • 2004 Worked with Dr. Vincent Frering on laparoscopic bariatric surgery in Polyclinique du Beaujolais in France
  • 2010 - 2011 Served as Coordinator of the formation of Turkey’s first Obesity and Metabolic Surgery Center

Awards, memberships, publications

  • Turkish Medical Association
  • Turkish Surgical Association
  • Turkish Surgical Endoscopy Association
  • Endoscopic Laparoscopic Surgery Association
  • Turkish Obesity Surgery Association
  • IFSO (International Federation of Surgery for Obesity)
  • International Bariatric Club
  • High Tech Surgeons
  • Turkish Anglo-Saxon Doctors Association
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