Prof. Dr. Barış Bayraktar

Clinical Interests

• Hepatobiliary, bariatric, colorectal, endocrine and breast surgery; traumatology.

Education and Specialization

• Istanbul University Cerrahpaşa Faculty of Medicine — medical education and General Surgery specialization; Kocaeli Health and Technology University — Professor, 2022.

Professional Experience

• Medical Park Gebze
• Istanbul University Cerrahpaşa Faculty of Medicine
• Istanbul Medeniyet University Göztepe Training and Research Hospital
• Medical Park Fatih
• Private Yalova Hospital
• Konak Hospital

Professional Memberships

• Turkish Surgical Association
• Clinical Enteral and Parenteral Nutrition Society
• Emergency Surgery and Trauma Association
• Colorectal Surgery Society

National Articles

1. Çağrı Bilgiç, Erman Sobutay, Salih Boluk, Sümeyra Emine Bölük, Barış Bayraktar. Diagnostic and Therapeutic Impact of Spyglass DS-Assisted Single-Operator Digital Cholangioscopy During ERCP. Journal of Cukurova Anesthesia and Surgical Sciences. 2026;9(3):885–897. DOI: 10.36516/jocass.1978608.
2. Çağrı Bilgiç, Erman Sobutay, Salih Boluk, Sümeyra Emine Bölük, Barış Bayraktar. Long-term outcomes of laser therapy for perianal fistulising Crohn’s disease: A single-center retrospective cohort study. Developments and Experiments in Health and Medicine. 2026;40(3):390–398. DOI: 10.18614/dehm.1929817.
3. Barış Bayraktar, Salih Boluk, Sümeyra Emine Bölük. Sigmoid colon duplication seen as a rare cause of ileus in adult: case report. Anatolian Current Medical Journal. 2022;4(3):323–325. DOI: 10.38053/acmj.1122620.

Verified Publication References

1. Güngör G, Demiral G, Şenol M, Bayraktar B, Çelik Y, Bölük S. Cyanoacrylate application on colonic anastomosis: is it safe or not? Prz Gastroenterol. 2016;11(3):206-210. doi: 10.5114/pg.2016.57737. Epub 2016 Feb 8. PMID: 27713784.
2. Canbak T, Bayraktar B, Acar A, Yigitbasi R. Evaluation of the gastrointestinal stromal tumors for clinical features, histopathological findings and prognostic criteria: A case-control study. North Clin Istanb. 2019 Jul 10;7(2):161-166. doi: 10.14744/nci.2019.56244. eCollection 2020. PMID: 32259038.
3. Bilgiç Ç, Bölük S, Sobutay E, Bayraktar B. Clinical outcomes of arterial detection ligation technique for grade II/III versus grade IV hemorrhoidal disease. Medicine (Baltimore). 2026 Mar 27;105(13):e48004. doi: 10.1097/MD.0000000000048004. PMID: 41894272.
4. Bayraktar B, Ozemir IA, Kefeli U, Demiral G, Sagiroğlu J, Bayraktar O, Adali G, Ozcelik A, Tortum OB. Colorectal stenting for palliation and as a bridge to surgery: A 5-year follow-up study. World J Gastroenterol. 2015 Aug 21;21(31):9373-9. doi: 10.3748/wjg.v21.i31.9373. PMID: 26309363.
5. Bayraktar O, Bayraktar B. The Feasibility of Conventional Forward-viewing Endoscope for Endoscopic Retrograde Cholangiopancreatography in Patients With Altered Gastrointestinal Anatomy. Surg Laparosc Endosc Percutan Tech. 2019 Jun;29(3):216-219. doi: 10.1097/SLE.0000000000000636. PMID: 30720694.
6. Özemir İA, Orhun K, Bilgiç Ç, Eren T, Bayraktar B, Zemheri E, Ekinci Ö, Alimoğlu O. [Torsion of a preperitoneal pedunculated lipoma of anterior abdominal wall mimicking acute appendicitis]. Ulus Travma Acil Cerrahi Derg. 2016 Sep;22(5):502-504. doi: 10.5505/tjtes.2016.63500. PMID: 27849330.
7. Ozemir IA, Aslan S, Eren T, Bayraktar B, Bilgic C, Isbilen B, Yalman H, Yigitbasi R, Alimoglu O; -. The Diagnostic and Prognostic Significance of Serum Neutrophil Gelatinase-Associated Lipocalin Levels in Patients with Colorectal Cancer. Chirurgia (Bucur). 2016 Sept-Oct;111(5):414-421. doi: 10.21614/chirurgia.111.5.414. PMID: 27819647.
8. Arslan NC, Bilgin IA, Gulcu B, Bayraktar B, Eray IC, Bisgin T, Yildirim Y, Aghayeva A, Aydin I, Bilgic C, Boluk S, Kurtul CI, Ramoglu N, Yildirim A, Bayraktar IE, Bayraktar O. Does laser treatment affect outcome in pilonidal sinus disease? Long-term multicenter retrospective analysis of pit-picking alone vs. pit-picking with laser. Tech Coloproctol. 2026 May 13;30(1):103. doi: 10.1007/s10151-026-03314-8. PMID: 42128975.
9. Demiral G, Senol M, Bayraktar B, Ozturk H, Celik Y, Boluk S. Diagnostic Value of Hook Wire Localization Technique for Non-Palpable Breast Lesions. J Clin Med Res. 2016 May;8(5):389-95. doi: 10.14740/jocmr2498w. Epub 2016 Mar 20. PMID: 27081425.
10. Bayraktar O, Bayraktar B, Atasoy D, Erenler I, Ozdemir IA, Boluk S, Bayraktar OU, Bayraktar A, Tortum OB, Yigitbasi R. Covered self-expandable metallic stents could be used successfully in the palliation of malignant cervical esophageal strictures: preliminary report. Surg Laparosc Endosc Percutan Tech. 2013 Apr;23(2):e41-4. doi: 10.1097/SLE.0b013e318275b35f. PMID: 23579526.
11. Eren T, Boluk S, Bayraktar B, Ozemir IA, Yildirim Boluk S, Tombalak E, Alimoglu O. Surgical indicators for the operative treatment of acute mechanical intestinal obstruction due to adhesions. Ann Surg Treat Res. 2015 Jun;88(6):325-33. doi: 10.4174/astr.2015.88.6.325. Epub 2015 May 14. PMID: 26029678.
12. Ozemir IA, Bayraktar B, Bayraktar O, Tosun S, Bilgic C, Demiral G, Ozturk E, Yigitbasi R, Alimoglu O. Single-site multiport combined splenectomy and cholecystectomy with conventional laparoscopic instruments: Case series and review of literature. Int J Surg Case Rep. 2016;19:41-6. doi: 10.1016/j.ijscr.2015.12.018. Epub 2015 Dec 17. PMID: 26708949.
13. Özemir İA, Bayraktar B, Anılır E, Orhun K, Eren T, Sağıroğlu J, Ceyran AB, Yiğitbaşı R, Alimoğlu O. The association of papillary thyroid cancer with microcalcification in thyroidnodules with indeterminate cytology based on fine-needle aspiration biopsy. Turk J Med Sci. 2016 Dec 20;46(6):1719-1723. doi: 10.3906/sag-1509-84. PMID: 28081315.
14. Ceyran AB, Senol S, Bayraktar B, Ozkanlı S, Cinel ZL, Aydın A. Langerhans cell histiocytosis of the thyroid with multiple cervical lymph node involvement accompanying metastatic thyroid papillary carcinoma. Case Rep Pathol. 2014;2014:184237. doi: 10.1155/2014/184237. Epub 2014 Oct 2. PMID: 25349760.
15. Eren T, Bayraktar B, Celik Y, Boluk S, Adali G. Acute malignant intestinal obstruction accompanied by synchronous multifocal intestinal cancer in Peutz-Jeghers syndrome: report of a case. Surg Today. 2012 Nov;42(11):1125-9. doi: 10.1007/s00595-012-0165-1. Epub 2012 Mar 21. PMID: 22434556.
16. Bayraktar B, Özemir İA, Sağıroğlu J, Demiral G, Çelik Y, Aslan S, Tombalak E, Yılmaz A, Yiğitbaşı R. A retrospective analysis of early and late term complications in patients who underwent application of retention sutures for gastrointestinal tract malignancies. Ulus Cerrahi Derg. 2014 Oct 20;31(1):15-9. doi: 10.5152/UCD.2014.2352. eCollection 2015. PMID: 25931939.
17. Adali G, Yorulmaz E, Ozkanli S, Ulasoglu C, Bayraktar B, Orhun A, Colak Y, Tuncer I. Serum concentrations of insulin-like growth factor-binding protein 5 in Crohn's disease. World J Gastroenterol. 2013 Dec 21;19(47):9049-56. doi: 10.3748/wjg.v19.i47.9049. PMID: 24379630.
18. Bayraktar B, Bayraktar O, Ozemir IA, Kizilkilic E, Ozturk E, Yigitbasi R. Comparison of two minimal invasive techniques of splenectomy: Standard laparoscopy versus transumbilical multiport single-site laparoscopy with conventional instruments. J Minim Access Surg. 2015 Apr-Jun;11(2):143-8. doi: 10.4103/0972-9941.137756. PMID: 25883456.
19. Ozemir IA, Bilgic C, Bayraktar B, Aslan S, Zemheri E, Yalman H, Yigitbasi R. Amyloid goiter related with Crohn's disease: A rare association: Amyloid goiter secondary to Crohn's disease. Int J Surg Case Rep. 2014;5(8):480-3. doi: 10.1016/j.ijscr.2014.06.004. Epub 2014 Jun 10. PMID: 24981166.