Prof. Dr. Özgen Işık
General Surgery

About Özgen Işık
Prof. Özgen Işık is a dedicated and experienced surgeon specializing in colorectal, bariatric, and transplant-related surgery. Currently affiliated with Acibadem Health Group (2025), Dr. Işık combines advanced surgical skill with a commitment to evidence-based care and multidisciplinary teamwork. Education and Certification – Completed Turkish Surgical Competency Recertification (2024), reflecting up-to-date competence in modern surgical practice and patient safety standards. Professional Experience – Acibadem Health Group (2025): Active clinical and academic role within a leading healthcare network, contributing to patient care, surgical innovation, and professional development. Memberships and Professional Affiliations – Bariatric and Metabolic Surgery Association – Turkish Society of Colon Rectal Surgery – Coordination Association of Organ Transplant Organizations of Turkey – Turkish Surgical Association – European Society of Coloproctology (ESCP) – National Society for Trauma and Emergency Surgery – International Society of University Colorectal Surgeons (ISUCRS) Clinical Focus and Approach – Expertise in colorectal and bariatric procedures, with involvement in organ transplant coordination and trauma/emergency surgery. – Emphasizes patient-centered care, surgical safety, and ongoing professional education. – Active in national and international professional communities, fostering collaboration and sharing best practices. Languages and Interests – Engages in academic collaboration and continuous learning to advance surgical outcomes and training.
Subspecialties
- Colorectal cancer
- Metastatic colorectal cancer
- Appendicitis
- Intestinal endometriosis
- Bowel obstruction
- Obesity
- Colorectal surgery
- Bariatric surgery
- Metabolic surgery
- Colonoscopy
- Hartmann’s procedure
- Left-sided bowel anastomosis
- Emergency left colon surgery
- Organ transplant surgery
Education
- 2024 TURKISH SURGICAL COMPETENCY RECERTIFICATION
- 2024 BURSA ULUDAĞ UNIVERSITY / FACULTY OF MEDICINE / DEPARTMENT OF GENERAL SURGERY / PROFESSOR OF GENERAL SURGERY
- 2021 TURKISH COLON RECTAL SURGERY QUALIFICATION CERTIFICATION
- 2021 EUROPEAN SURGICAL COMPETENCE CERTIFICATION (COLOPROCTOLOGY)
- 2018 BURSA ULUDAĞ UNIVERISTY / FACULTY OF MEDICINE / DEPARTMENT OF GENERAL SURGERY / ASSOCIATE PROFESSOR OF GENERAL SURGERY
- 2015 DA VINCI ROBOTIC SURGERY TRAINING PROGRAM CERTIFICATION
- 2013 CLEVELAND CLINIC FOUNDATION/ DIGESTIVE SYSTEM DISEASES INSTITUTE/ COLORECTAL SURGERY DEPARTMENT/ RESEARCH ASSISTANT
- 2012 TURKISH SURGICAL COMPETENCY CERTIFICATION
- 2010 Uludag University Faculty of Medicine General Surgery
- 2004 Trakya University Faculty of Medicine
Experience
- 2025 Acibadem Health Group
- 2022 – 2025 Bursa Medicana Hospital General Surgery Clinic (part-time)
- 2016 – 2025 Bursa Uludag University Faculty of Medicine, Department of General Surgery
- 2014 – 2015 Acibadem Health Group
- 2011 – 2012 Idil State Hospital (State Service Obligation)
- 2010 – 2011 Chief of General Staff (Military Service)
Professional Memberships
- Bariatric and Metabolic Surgery Association
- Turkish Society of Colon Rectal Surgery
- Coordination Association of Organ Transplant Organizations of Turkey
- Turkish Surgical Association
- European Society of Coloproctology (ESCP)
- National Society for Trauma and Emergency Surgery
- International Society of University Colorectal Surgeons (ISUCRS)
Selected Publications
- Extended pharmacological thromboprophylaxis and clinically relevant venous thromboembolism after major abdominal and pelvic surgery: international, prospective, propensity score-weighted cohort study British Journal of Surgery, 112(3), Doi: 10.1093/bjs/znaf005 (Publication No: 9555606) IŞIK ÖZGEN
- Intestinal endometriosis amongst other extra-pelvic endometriosis foci presenting as acute/subacute bowel obstruction in women of reproductive age: a retrospective case series study. BMC Surgery, 25(1), Doi: 10.1186/s12893-024-02755-y (Publication No: 9555605) GÜRLÜLER ERCÜMENT,IŞIK ÖZGEN,UĞRAŞ NESRİN,ŞAHİN AYSUN,ŞEN MURAT,YILMAZLAR AHMET TUNCAY
- Candidate Biomarkers Associated With Circulating Tumor Cell Status in Metastatic Colorectal Cancer. Journal of Clinical Laboratory Analysis, 39(7), Doi: 10.1002/jcla.70013 (Publication No: 9555600) DOĞAN BERKCAN,PİRİM DİLEK,IŞIK ÖZGEN,EVRENSEL TÜRKKAN
- Association between multimorbidity and postoperative mortality in patients undergoing major surgery: a prospective study in 29 countries across Europe Anaesthesia, 79(9), 945-956., Doi: 10.1111/anae.16324 (Publication No: 9555568) IŞIK ÖZGEN
- Using the Cardiac-Electrophysiological Balance Index to Predict Arrhythmia Risk After Colonoscopy Medicina, 61(1), Doi: 10.3390/medicina61010013 (Publication No: 9555598) POLATKAN SEYİT ALİ VOLKAN,GÜNAY POLATKAN ŞEYDA,IŞIK ÖZGEN,SIĞIRLI DENİZ
- Microscopic Growth Pattern of Metastatic Colorectal Carcinomas, Morphological Findings of the Non-Neoplastic Liver, and Their Relationship With Prognosis and Survival. International Journal of Surgical Pathology, 32, 1256-1262., Doi: 10.1177/10668969241226702 (Publication No: 9555582) ÖZŞEN MİNE,UĞRAŞ NESRİN,YERCİ ÖMER,DELİGÖNÜL ADEM,TAŞAR PINAR,IŞIK ÖZGEN,YILMAZLAR AHMET TUNCAY
- A prognostic model for use before elective surgery to estimate the risk of postoperative pulmonary complications (GSU-Pulmonary Score): a development and validation study in three international cohorts The Lancet Digital Health, 6(7), 507-519., Doi: 10.1016/S2589-7500(24)00065-7 (Publication No: 9555551) IŞIK ÖZGEN
- Anastomotic leak after manual circular stapled left-sided bowel surgery: analysis of technology-, disease-, and patient-related factors BJS Open, 8(5), Doi: 10.1093/bjsopen/zrae089 (Publication No: 9555595) IŞIK ÖZGEN
- Nationwide prospective audit for the evaluation of appendicitis risk prediction models in adults: right iliac fossa treatment (RIFT)?Turkey BJS Open, 8(5), Doi: 10.1093/bjsopen/zrae120 (Publication No: 9555593) IŞIK ÖZGEN
- Utilization and outcomes of Hartmann’s procedure in emergency left colon surgery: evaluating postoperative complications and stoma reversal rates European review for medical and pharmacological sciences, 28(17), 4229-4237., Doi: 10.26355/eurrev_202409_36712 (Publication No: 9555576) GÜRLÜLER ERCÜMENT,AKTAŞ AHMET ALİ,IŞIK ÖZGEN,YILMAZLAR AHMET TUNCAY
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