Acibadem Healthcare Group
Özgen Işık
Prof. M.D.

Özgen Işık

Medical Units and Clinical Services
  • Gastrointestinal Oncology Unit (Clinical Service)
  • General Surgery
  • Hemorrhoid and Anorectal Diseases
  • Robotic Rehabilitation
  • Treatment of Pelvic Pain

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.

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)

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)

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


Same Branch Doctors: Gastrointestinal Oncology Unit (Clinical Service)

Assist. Prof. M.D.

Zeynep Güral

Gastrointestinal Oncology Unit (Clinical Service)
Assoc. Prof. M.D.

Serap Yücel

Gastrointestinal Oncology Unit (Clinical Service)
M.D.

Mustafa Bozkurt

Gastrointestinal Oncology Unit (Clinical Service)
Assist. Prof. M.D.

Kemal Ünal

Gastrointestinal Oncology Unit (Clinical Service)
Assoc. Prof. M.D.

Işil Yıldız

Gastrointestinal Oncology Unit (Clinical Service)
Prof. M.D.

İbrahim Yıldız

Gastrointestinal Oncology Unit (Clinical Service)
Prof. M.D.

Hakan Yildiz

Gastrointestinal Oncology Unit (Clinical Service)
Prof. M.D.

Fulya Ağaoğlu

Gastrointestinal Oncology Unit (Clinical Service)
Prof. M.D.

Fatih Oğuz Önder

Gastrointestinal Oncology Unit (Clinical Service)
Prof. M.D.

Can Çalışkan

Gastrointestinal Oncology Unit (Clinical Service)
Assoc. Prof. M.D.

Bedriye Koyuncu Sökmen

Gastrointestinal Oncology Unit (Clinical Service)
Assoc. Prof. M.D.

Aylin Altan Kuş

Gastrointestinal Oncology Unit (Clinical Service)
Prof. M.D.

Ali Arican

Gastrointestinal Oncology Unit (Clinical Service)
M.D.

Ahmet Ali Aktaş

Gastrointestinal Oncology Unit (Clinical Service)
M.D.

Abdullah Boğa

Gastrointestinal Oncology Unit (Clinical Service)
Prof. M.D.

A. Sibel Erdamar Çetin

Gastrointestinal Oncology Unit (Clinical Service)

Same Branch Doctors: General Surgery

Same Branch Doctors: Hemorrhoid and Anorectal Diseases

M.D.

Tolga Hüner

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Tayfun Karahaşanoğlu

Hemorrhoid and Anorectal Diseases
Assoc. Prof. M.D.

Suna Yapalı

Hemorrhoid and Anorectal Diseases
M.D.

Raif Orhan

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Metin Ertem

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Melih Paksoy

Hemorrhoid and Anorectal Diseases
Prof. M.D.

İsmail Hamzaoğlu

Hemorrhoid and Anorectal Diseases
Assoc. Prof. M.D.

İsmail Ahmet Bilgin

Hemorrhoid and Anorectal Diseases
M.D.

Hüseyin Güney

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Hilal Ünal

Hemorrhoid and Anorectal Diseases
Assoc. Prof. M.D.

Hayrettin Dizen

Hemorrhoid and Anorectal Diseases
Assoc. Prof. M.D.

Hakan Yardımcı

Hemorrhoid and Anorectal Diseases
Assoc. Prof. M.D.

Deniz Atasoy

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Cihan Uras

Hemorrhoid and Anorectal Diseases
M.D.

Çiğdem Benlice

Hemorrhoid and Anorectal Diseases
M.D.

Cahide İnci Kurtul

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Bilgi Baca

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Aziz Sümer

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Arzu Tiftikçi

Hemorrhoid and Anorectal Diseases
Assoc. Prof. M.D.

Afag Aghayeva

Hemorrhoid and Anorectal Diseases
Prof. M.D.

Abdullah Zorluoğlu

Hemorrhoid and Anorectal Diseases
Assoc. Prof. M.D.

Abdülhak Hamit Karayağız

Hemorrhoid and Anorectal Diseases

Same Branch Doctors: Robotic Rehabilitation

Prof. M.D.

Tayfun Karahaşanoğlu

Robotic Rehabilitation
M.D.

Sarp Özcan

Robotic Rehabilitation
Prof. M.D.

Şahin Şenay

Robotic Rehabilitation
Prof. M.D.

Özgür Yağmur

Robotic Rehabilitation
M.D.

Okay Mehmet Ergenoğlu

Robotic Rehabilitation
Assoc. Prof. M.D.

Mustafa Çorum

Robotic Rehabilitation
Prof. M.D.

Mete Güngör

Robotic Rehabilitation
Prof. M.D.

Mehmet Ali Vardar

Robotic Rehabilitation
Prof. M.D.

M. Faruk Köse

Robotic Rehabilitation
Prof. M.D.

Lütfi Tunç

Robotic Rehabilitation
Prof. M.D.

İsmail Hamzaoğlu

Robotic Rehabilitation
Prof. M.D.

İlter Tüfek

Robotic Rehabilitation
Prof. M.D.

Hamdı Karakayalı

Robotic Rehabilitation
Prof. M.D.

Güralp Onur Ceyhan

Robotic Rehabilitation
General Surgeon

Fatih Kaya

Robotic Rehabilitation
Prof. M.D.

Ersin Erek

Robotic Rehabilitation
Prof. M.D.

Erkan Kaba

Robotic Rehabilitation
Prof. M.D.

Cihan Uras

Robotic Rehabilitation
Prof. M.D.

Cihan Aksoy

Robotic Rehabilitation
Prof. M.D.

Cem Alhan

Robotic Rehabilitation
Prof. M.D.

Can Öbek

Robotic Rehabilitation

Same Branch Doctors: Treatment of Pelvic Pain

Prof. M.D.

Zeynep Güven

Treatment of Pelvic Pain
M.D.

Tolga Hüner

Treatment of Pelvic Pain
Prof. M.D.

Süleyman Özyalçin

Treatment of Pelvic Pain
Assoc. Prof. M.D.

Selin Özaltın

Treatment of Pelvic Pain
M.D.

Raif Orhan

Treatment of Pelvic Pain
M.D.

Rafiga Gasimova

Treatment of Pelvic Pain
Assoc. Prof. M.D.

Özgüç Takmaz

Treatment of Pelvic Pain
M.D.

Nida Özer

Treatment of Pelvic Pain
Prof. M.D.

Nesliar Eser Kutsal

Treatment of Pelvic Pain
Assoc. Prof. M.D.

Murat Yassa

Treatment of Pelvic Pain
M.D.

Müge Koçak

Treatment of Pelvic Pain
M.D.

Mine İnan

Treatment of Pelvic Pain
Prof. M.D.

Mete Güngör

Treatment of Pelvic Pain
M.D.

Meliha Kovancı Bayraktaroğlu

Treatment of Pelvic Pain
Prof. M.D.

Mehmet Akif Sargin

Treatment of Pelvic Pain
Prof. M.D.

M. Faruk Köse

Treatment of Pelvic Pain
M.D.

Lala Aslanova

Treatment of Pelvic Pain
Prof. M.D.

Hüsnü Görgen

Treatment of Pelvic Pain
Assoc. Prof. M.D.

Hayrettin Dizen

Treatment of Pelvic Pain
Assoc. Prof. M.D.

Halenur Bozdağ

Treatment of Pelvic Pain
Prof. M.D.

Hale Göksever Çelik

Treatment of Pelvic Pain
M.D.

Hacer Yüksel

Treatment of Pelvic Pain
M.D.

Habibe Seyisoğlu

Treatment of Pelvic Pain
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