AnasayfaOur DoctorsDoç. Dr. Onur Bayraktar

Onur Bayraktar
Associate Professor

GENERAL SURGERY SPECIALIST

After graduating from Istanbul University Cerrahpaşa Faculty of Medicine in 2003, Dr. Barış Bayraktar completed his specialty training at Istanbul University Cerrahpaşa Faculty of Medicine, Department of General Surgery in 2008.

He completed his post-specialty compulsory service at Siirt Kurtalan State Hospital in 2011-2012 and worked at TDV 29 Mayıs Hospital between 2012-2013. Between 2014-2018, he worked at Acıbadem University Faculty of Medicine, Department of General Surgery. In 2017, she passed the European Board of Coloproctology (EBSQ-C) exam in Berlin, Germany and received a coloproctology specialist certificate. He worked at Bilim University Istanbul Florence Nightingale Hospital between 2018 and 2021. He gained the title of “Associate Professor of General Surgery” on August 28, 2019 and has been working at Şişli Memorial Hospital since December 20, 2021.

Areas of Interest
İleri Laparoskopik Teknikler
  1. Advanced Laparoscopic Surgery
  2. Robotic Surgery
Digestive System Diseases
Small Intestine, Large Intestine and Rectum diseases (Laparoscopic or robotic)
  1. Cancer
  2. Hemorrhoids, anal fissure, abscess, fistula
  3. Inflammatory bowel diseases
  4. Stool disorders (fecal incontinence) and pelvic floor diseases
Obesity and metabolic surgery (Laparoscopic or robotic)
  1. sleeve gastrectomy
  2. Roux en Y gastrojejunostomy
  3. Minigastric bypass
  4. Duodenal Switch
Hernia surgery
  1. Abdominal wall
  2. Inguinal hernias
  3. Surgery site hernias
  4. Esophageal and stomach cancers
Esophageal and stomach cancers
  1. Stomach hernia and reflux disease
  2. Achalasia
Diseases of the liver, biliary tract and pancreas
  1. Liver Cancers
  2. Gallstones
  3. Gallbladder Cancer
  4. Pancreatic cancer

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Membership Associations
  1. Turkish Medical Association
  2. Turkish Surgery Association
  3. European Society of Coloproctology
  4. Turkish Colon and Rectal Surgery Association
Courses Attended

  1. Pelvic Floor Ultrasound Course, Bahçeşehir University Faculty of Medicine, November 2017, Istanbul

  2. Turkish Colon and Rectum Surgery Association 19th Laparoscopic Colorectal Surgery Course, November 2017, Istanbul.

  3. European Society of Coloproctology 12th Scientific and Annual Meeting, September 2017, Berlin.

  4. Applied Robotic Colorectal Surgery Course, May 2016, Acıbadem University, Istanbul

  5. Turkish Colon and Rectal Surgery Association 15. Laparoscopic Colorectal Surgery Course, October 2015, Istanbul.

  6. Laparoscopic Surgery Course in Abdominal Wall and Inguinal Hernias, November 2014, İzmir.

  7. Turkish Society of Surgery Stapler and Its Use training, December 2010, Istanbul

  8. Abdominal Wall and Cavity Anatomical Studies in Cadaver Applied Training Program, İ.Ü. Cerrahpasa Medical Faculty. General Surgery and Anatomy Department, June 2010, Istanbul.

  9. Laparoscopy Training Program, İ.Ü. Cerrahpasa Medical Faculty. General Surgery Department, April 2010, Istanbul.

  10. Basic Statistics e-Course, 2010, Istanbul.

Patient Stories

Esophageal Cancers

Esophageal (esophageal) cancer, which ranks 6th among all cancers; Reflux complaints (burning and pain in the chest) Difficulty swallowing (dysphagia) weight loss swelling in the neck Anorexia Bleeding while gagging Cough May come with complaints. The most important diagnostic method is endoscopic examination. Treatment depends on many factors, especially the location and stage of the […]

Laparoscopic Colon Tumor Surgery

Our patient, who had been operated on for lung cancer 2 years ago, applied to our clinic after a tumoral mass was detected in the large intestine (transverse middle of the colon) during the follow-up. Our general surgeons performed laparoscopy-assisted extended right hemicolectomy for the patient. Post-operative doctor follow-ups and nutrition are very important. We […]

Plummer-Vinson syndrome

Ms. Necla applied to us with the complaint of dysphagia, which has been going on for 10 years and has increased especially this year.Our patient, who came from Izmir, was asked to undergo gastroscopy in a different health center before, but could not pass due to stenosis.We diagnosed him with Plummer-Vinson syndrome after the examination, […]

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