Assoc. Prof. Didem Öncel Yakar is an experienced general surgeon with a strong focus on hepatobiliary and pancreatic surgery and trauma care. She earned her medical degree from Istanbul University, Istanbul Faculty of Medicine in 2004 and has built a career combining surgical practice, teaching, and clinical leadership. Since 2022 she has been affiliated with Acibadem Health Group, where she contributes to high-quality surgical care and multidisciplinary patient management. She is an active member of the Turkish Surgical Association, the Turkish Hepato-Pancreato-Biliary Surgery Association, and the National Society for Trauma and Emergency Surgery, reflecting her commitment to professional development and excellence in complex abdominal and emergency surgery. Colleagues and patients recognize her for clinical skill, evidence-based practice, and dedication to improving surgical outcomes.
Education
- 2004 Istanbul University Istanbul Faculty of Medicine General Surgery
- 1998 Istanbul University Faculty of Medicine
Experience
- 2022 Acibadem Health Group
- 2016 – 2020 Acibadem University / Faculty Member
- 2013 Acibadem Health Group
- 2008 – 2013 Memorial Ataşehir Hospital / Department of General Surgery and Organ Transplantation
- 2007 – 2008 VKV American Hospital / Department of General Surgery, Liver-Pancreas Surgery Unit
- 2006 – 2007 Istanbul University Istanbul Faculty of Medicine / Liver-Pancreas-Biliary Tract Surgery Unit
- 2005 – 2006 University of Southern California, Keck School of Medicine Division of Trauma and Surgical Critical Care / Research Fellow
- 2004 – 2005 VKV American Hospital / Department of General Surgery, Endocrine Surgery Unit
Memberships
- Turkish Surgical Association
- Turkish Hepato Pancreato Biliary Surgery Association
- National Society for Trauma and Emergency Surgery
Publications
- A diagnostic delay of 5 hours increases the risk of death after blunt hollow viscus injury.
J Trauma 2010 Jul;69(1):84-87 Malinoski DJ, Patel MS, Yakar DÖ, Green D, Qureshi F, Inaba K, Brown CV, Salim A. - Blunt cardiac rupture: a 5-year NTDB analysis.
J Trauma 2009 Oct;67(4):788-91 Teixeira PG, Inaba K, Öncel D, DuBose J, Chan L, Rhee P, Salim A, Browder T, Brown C, Demetriades D. - Blood transfusions in trauma: six-year analysis of the transfusion practices at a level I trauma center
Am Surg. 2008 Oct;74(10):953-7 Teixeira PG, Öncel D, Demetriades D, Inaba K, Shulman I, Green D, Plurad D, Rhee P. - Brain lobectomy for severe head injuries is not a hopeless procedure.
J Trauma. 2007 Nov;63(5):1010-3 Öncel D, Demetriades D, Gruen P, Salim A, Inaba K, Rhee P, Browder T, Nomoto S, Chan L. - Impact of the 80 hour workweek on patient care at a level I trauma center.
Arch Surg. 2007 Aug.142(8):708-12 Salim A, Teixeira PG, Chan L, Oncel D, Inaba K, Brown C, Rhee TV. - Blunt gastric injuries.
Am Surg. 2007 Sep;73(9):880-3 Öncel D, Malinoski D, Brown C, Demetriades D, Salim A. - Approach to esophageal variceal bleeding: Endoscopic applications.
Türk HPB 2006; 2(2):63-71 Öncel D, Özden İ, Tekant Y. - Bile duct injury during cholecystectomy requiring delayed liver transplantation: a case report and literature review.
Tohoku J Exp Med. 2006 Aug;209(4):355-9 Öncel D, Özden I, Bilge O, Tekant Y, Acarlı K, Alper A, Emre A, Arıoğul O. - No immunoreactivity specific to Helicobacter strains was detected in periampullary tumors by light microscopy
Türk HPB 2006;2(2):71-75 Özden İ, Güllüoğlu MG, Öncel D, Bilge O, Tekant Y, Acarlı K, Alper A, Arıoğlu O, Dizdaroğlu F, Emre A. - Subphrenic abscess resulting in resection of the lower basal segment of the right lung: a severe complication following laparoscopic appendectomy.
J Laparoendosc Adv Surg Tech. 2005 Feb;15(1):63-5 Birsel Y, Öncel D, Dilege Ş, Güloğlu R.
