Halaman 5 - Gastroenterologi Gastroenterologis Terbaik - TOP-197 dokter

Education & Expertise

1995 to 2001 | Ege University Faculty of Medicine – Medical Education

2001 to 2006 | Dokuz Eylül University Faculty of Medicine – Internal Medicine Specialization

2008 to 2011 | Göztepe Training and Research Hospital – Gastroenterology Subspecialty

2014 | Ümraniye Training and Research Hospital – Associate Professor of Gastroenterology

2021 | University of Health Sciences – Professor

Professional Experience

2007 | Nusaybin State Hospital – Internal Medicine Specialist (Civil Service Obligation)

2011 to 2014 | Ümraniye Training and Research Hospital – Gastroenterology Specialist

2014 to 2017 | Ümraniye Training and Research Hospital – Associate Professor of Gastroenterology

2017 to 2021 | Health Sciences University – Associate Professor of Gastroenterology

2015 to 2021 | Ümraniye Training and Research Hospital Gastroenterology Clinic – Clinic Chief

2021 to 2022 | University of Health Sciences – Professor of Internal Medicine and Gastroenterology

2015 to 2022 | Genomic Laboratory (GLAB) Coordinator, Istanbul Provincial Health Directorate

2014 to 2021 | Northern Clinics of Istanbul Journal (indexed in WoS and PubMed) – Founding Editor

2021 to Present | Turkish Liver Research Association – Board Member

2022 to Present | Hepatology Bulletin Journal – Editor

2019 to Present | Hepatology Forum Magazine – Editor

2016 to Present | World Journal of Hepatology – Editor

International Experience

1999 | Trainee Doctor, Regional Infectious Diseases Unit, Western General Hospital, Edinburgh, UK

2000 | Trainee Doctor, Cardiology Unit, North Manchester General Hospital, Manchester, UK

2005 | Assistant Doctor, Regional Infectious Diseases Unit, Western General Hospital, Edinburgh, UK

Professional Memberships

Turkish Gastroenterology Association

Turkish Liver Research Association

EASL – European Association for the Study of Liver

APASL – Asian Pacific Association for the Study of Liver

AAAS – American Association for the Advancement of Science

Awards & Recognitions

2013 | Liver Fibrosis Pathways in Chronic Hepatitis B: A Comparative Proteomic Study – Gilead Fellowship Award

2014 | Liver Fibrosis Pathways in Chronic Hepatitis B: A Comparative Proteomic Study – Viral Hepatitis Fight Association Project Support Award

2014 | The Relationship between Spontaneous Seroconversion and Toll-Like Receptor Gene Polymorphism in Hepatitis B Infection – Turkish Gastroenterology Association, Best Poster Second Prize

2015 | Research on Damage Pathways in Liver Tissue in Chronic Hepatitis B: A Comparative Proteomic Study – Turkish Gastroenterology Association, Best Oral Presentation Third Prize

2016 | Investigations of the EGF and Its Receptor EGFR Gene Variants in Ulcerative Colitis – XV Euroasian Congress of Gastroenterology and Surgery, Best Oral Presentation Third Prize

Education and Expertise

• 2023 BAKIRÇAY UNIVERSITY ÇİĞLİ TRAINING AND RESEARCH HOSPITAL (ASSOCIATE PROFESSOR)
• 2021 EGE UNIVERSITY FACULTY OF MEDICINE GASTROENTEROLOGY DEPARTMENT
• 2017 EGE UNIVERSITY INTERNAL MEDICINE DEPARTMENT
• 2010 EGE UNIVERSITY FACULTY OF MEDICINE

Diseases

• Liver Diseases
• Digestive System Diseases

Treatment Methods

• Endoscopy
• Endoscopic mucosal resection – EMR
• Endoscopic Obesity Treatment (Intragastric Botox, Intragastric Balloon)
• Endoscopic Polypectomy
• Endoscopic Retrograde Cholangio Pancreatography (ERCP)
• Liver Transplant
• Colonoscopy
• Peroral Cholangioscopy

Experience

• Diyarbakir 112 Emergency Health Services Chief Physician (2010-2011)
• Ege University Faculty of Medicine, Department of Internal Medicine (2012-2017)
• Ayvalik State Hospital (2017-2018)
• Ege University Faculty of Medicine, Department of Gastroenterology (2018-2021)
• Burdur State Hospital (2021-2022)
• Bakırçay University Çiğli Training and Research Hospital (2022-2024)

Professional Memberships

• 1.Turkish Gastroenterology Association (ERCP working group)
• 2. Turkish Liver Research Association
• 3. Turkish Medical Association

In 2007 he joined the Costa del Sol Hospital and left this position when he obtained an international scholarship that would take him back to San Francisco. In 2010 he moved to Japan to complete his training in the submucosal endoscopic dissection technique that he would later on introduce in Andalusia in 2011, thus becoming one of the pioneers in the performance of this technique in Spain. In 2011 he became the first medical professional in the world to use the 15-mm AXIOS stent in pancreatic fluid collection drainage. In 2018 he began to perform gastroenteroanastomosis with luminal apposition stent in patients with pancreatic cancer and bowel obstruction, thus becoming a pioneer in Andalusia to perform such technique.

He is a coauthor of the reference guides of the European Society of Gastrointestinal Endoscopy on the endoscopic treatment of chronic pancreatitis and non-variceal gastrointestinal haemorrhage.

Professional Experience

Over 24 years' experience

1999 - Degree in Medicine and Surgery. Malaga University, Spain.

2003 to 2006 - Medical Residency in the Digestive System at the Virgen Macarena Hospital in Seville, Spain.

2006 - International Scholar at the California Pacific Medical Center in San Francisco, USA.

2007 – Digestive System Specialist at the Costa del Sol Hospital, Marbella. Spain.

2008 - California Pacific Medical Center in San Francisco, USA.

2009 - Top Reviewer Award received from the Gastrointestinal Endoscopy Journal.

2011 – Pioneer in Spain in the introduction of the submucosal endoscopic dissection technique.

2011 – First professional in the world to use the AXIOS (15mm) stent for pancreatic fluid collection drainage.

2016 - Gold Medal of the Andalusian Society for Digestive Disease (SAPD, in its Spanish abbreviation).

2017 - Fellow of the American College of Gastroenterology (FACG).

2018 - Pioneer in Andalusia to perform gastroenteroanastomosis with luminal apposition stent to treat bowel obstruction.

2019 - Fellow of the American Society for Gastrointestinal Endoscopy (FASGE).

The Digestive System Unit of the Quirónsalud Marbella Hospital offers a patient service portfolio that includes all the clinical aspects of gastroenterology, hepatology, biliary duct and pancreatic disease, as well as the diagnostic and treatment techniques used in this speciality such as abdominal ultrasound, endoscopy and other functional tests.

Our specialists have solid professional backgrounds and the team is highly qualified for the diagnosis and treatment of complex diseases such as conditions related to acidity (gastric ulcers, helicobacter pylori, gastroesophageal reflux disease), enteropathies (Crohn's Disease, ulcerative colitis; coeliac disease...), viral hepatitis, hepatic cirrhosis, pancreatic disease...

The Digestive System Unit of the Quirónsalud Marbella Hospital is a pioneer in the implementation of a specific check-up programme for digestive disease with special attention to the diagnosis and treatment of colon precancerous lesions.

Diseases, treatments and techniques:

• Diagnostic and therapeutic endoscopic ultrasound

• Endoscopic resection techniques (mucosectomy/submucosal dissection)

• Submucosal or third-space endoscopy (POEM and variants)

• Bariatric endoscopy (Apollo Method)

Gastroenterologist

Crohn's disease

Ulcerative colitis

Other autoimmune diseases

Gastritis

Ulcers of the stomach and duodenum

Precancerous conditions of the gastrointestinal tract

Irritable bowel syndrome

Chronic diarrhea

Chronic constipation, etc.

SPECIALIZATION:

Gastroenterologist

EDUCATION:

Azerbaijan State Medical University

COURSES:

Graduated from the Azerbaijan State Medical University. In different years, he participated in seminars held in Azerbaijan by German, Colombian, Swiss, Russian and Ukrainian specialists on "Basics of Homotoxicology", gastroenterology, isopathy, acupuncture and neurotherapy, and received the relevant certificates. At the Sisli Etfal Hospital Egitim Araştırma in Istanbul he attended the refresher courses on "Metabolic Disorders and Obesity", Ege University of Izmir on "Inflammatory Bowel Diseases" and at the same time he attended the Congress on Bioregulatory Drugs in Germany. He attended the courses held Individual Medical Association in Ankara, on the topic of "PRP-CGF and Serum Ozonation". Currently working as a gastroenterologist in the clinic of biological medicine. Has successful results in the treatment of a number of chronic diseases of the gastrointestinal tract.

EXPERIENCE:

21 years old

Dr. Cheon Won Seok is the Director of the Department of Gastroenterology at Naeun Hospital. His expertise includes gastrointestinal diseases; upper gastrointestinal endoscopy and colonoscopy; polypectomy; ESD (Endoscopic Submucosal Dissection); small-bowel capsule endoscopy; digestive disorders; gastric and esophageal cancer; Helicobacter pylori infection; liver diseases; and inflammatory bowel disease, including Crohn’s disease and ulcerative colitis.

He graduated from Kyung Hee University College of Medicine. He completed his internship at Kyung Hee Medical Center and his internal medicine residency at Hallym University Sacred Heart Hospital. He later served as a Clinical Instructor in Gastroenterology at Chung-Ang University Hospital. He is a full member of the Korean Association of Internal Medicine and a life member of the Korean Society of Gastrointestinal Endoscopy. He is also a board-certified subspecialist in gastrointestinal endoscopy and serves as a medical advisor to KBS, MBC, SBS, JTBC, and MBN.

Dr. Suleyman Guray is a gastroenterology specialist at Memorial Göztepe Hospital in Istanbul (2025–present). He previously worked at Medicana Izmir International Hospital (2025) and Izmir Katip Çelebi University Ataturk Training and Research Hospital (2018–2025).

He earned his MD from Ege University (1996–2002). He completed his specialization in Internal Medicine at Bozyaka Training and Research Hospital (2004–2009). He is a member of the Turkish Society of Gastroenterology and the Gastrointestinal Endoscopy Society.

His advanced endoscopy training includes CHA Bundang Medical Center. He also attended the Manchester Advanced Endoscopy Symposium and the International Congress of Gastroenterology Research, Endoscopy, and Training Society.

Dr. Fernando Azpiroz Vidaur is a highly experienced gastroenterologist with over 35 years of experience in gastrointestinal research, gut disorders, gut motility, visceral sensitivity, and intestinal gas dynamics. He has received medical degrees from the University of Valladolid and San Carlos University Hospital in Madrid, a fellowship from Mayo Clinic's Gastrointestinal Research Unit, and numerous awards for his clinical research. He is also the President of the European Society of Neurogastroenterology and Motility and a Councilor of the International Motility Group.

Prof. Jong Kyun Lee is a highly experienced gastroenterologist specializing in the management of pancreatic, bile duct and gallbladder cancers, pancreatitis, and gallstones. He has worked at Samsung Medical Center and holds degrees from the Seoul National University College of Medicine and the University of California. He is a member of several organizations, including The Korean Society of Gastrointestinal Endoscopy, The Korean Society of Gastroenterology, and The Korean Pancreatobiliary Association.

Gastroenterology

Pendik Medipol University Hospital

Education

1999 Karadeniz Technical University, Gastroenterology

1997 Atatürk University, Internal Diseases Professorship

1992 Atatürk University, Internal Diseases Associated Professorship

1985 Atatürk University, Internal Diseases Specialist

1981 Atatürk University Faculty of Medicine

Publications

1- Nihat Okçu Gülçin Polat, Arif Yılmaz, Mehmet Koruk, The demographic features of gastric cancers in Erzurum(Eurasian J Med 2000; 32: 63-65)

2- An Evaluation of Upper Gastrointestinal Bleeding Cases. Clinical Sciences-Doctor.2000, - E.akarsu,N.Okçu,et Ark.Northeast Anatolia 6:4:435-438

3-N.Okçu, A.yılmaz. İ.kiki,MDonuk, C.gündoğdu, H.uzunismail. Our Diagnostic Upper Gastrointestinal Endoscopy Results. Atatürk University Medical Journal 1997,29 (2):486

4-N. Okçu, M.gündoğdu, MD onuk, İ.kiki, l.cerrahoğlu, k.yılmaz, I. çapoğlu. The Role of Misoprostol in Preventing Gastroduodenal Lesions in Patients Using Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). Atatürk University Medical Journal 1997,29 (2):453-455.

5-N.Okçu, A. Öz, MD Onuk, E.Akarsu, B. Tekin, Hz Tonbul, H.Kaya. Plasma Fibronectin Levels in Chronic Active Hepatitis and Decoction of Liver Parenchymal Insufficiency and Their Relationship with Liver Functional Status. Turkish J. Gastroenterol 1995;27(4): 422-426.

6-N.Okçu, Tahir Buran, MD Onuk, A. Yılmaz, E.Akarsu, G. Akçay. Prevalence of Helicobacter Pylori in Patients with Duodenal Ulcer in Erzurum and Surrounding Area. Turkish J. Gastroenterol 1995;27(4): 447-450.

7-N.Okçu, bs awake, e. akarsu, e. bakan, z. tonbul. Importance of Carbohydrate Antigens (CA-19-9, CA-125), Carcinoembryonic Antigen (CEA) and Alkaline Phosphatase in Gastric and Colorectal Cancers. Turkish J. Gastroenterol 1995;6:467-471.

8-N. Okçu, MD Onuk, E. Akarsu, H. Doğan, C. Gündoğdu. Major Risk Factors in Patients with Hepatocellular Carcinoma in Our Region. Gastroenterology 1994;5(2):154-157

9-N.Okçu, md. Onuk, e. akarsu, h. doğan, c.gündoğdu, tahir buran. Frequency of gastric carcinoma in Erzurum region, endoscopic and histological features. Gastroenterology 1994;5(2):263-267.

10-N. Okçu, MD Onuk, Tahir Buran, E. Akarsu, MA Çiftçioğlu. Frequency of Helicobacter Pylori in Nonspecific Gastritis Cases in Erzurum Province. Gastroenterology 1994;5(2):211-213.

11-N.Okçu, MD Onuk, Ö. Ünal, E. Akarsu, L. İncesu, K. Akgöz. Diagnostic Value of Ultrasound-Guided Fine Needle Aspiration Biopsy in Intra-Abdominal Mass Lesions. Gastroenterology 1993;4(1):166-68.

12-NOkçu, md. onuk, m. polat, a. yılmaz, m. gündoğdu, m. paç. Budd-Chiari Syndrome (2 Cases). Turkish J Gastroenterhepatol 1993; 4(1):77-80.

13-N.Okçu, H. Koçak, MD Onuk, M. Gündoğdu, E. Bakan, A. Yılmaz, A. Başoğlu, A. Ateş, F.A. Paç. The Effect of Atrial Pressure Changes and Cardiac Nerves on Plasma Atrial Natriuretic Peptide (ANP) Levels. Vascular Surgery 1993; 27(2): 128-132

15-N.Okçu, MD Onuk, A.Yılmaz, M. Gündoğdu, T. Buran. Effects of Omeprozole and Ranitidine on Peptic Ulcer Healing. Doğa-Tr.J. of Medical Sciences 1992;16:657-658.

16-N. Okçu, Mr. Yiğitoğlu, B. Adam, E. Bakan. The Effect of Digixin on Plasma Atrial Natriuretic Peptic Level in Patients with Congestive Heart Failure. S.Ü. Medical Faculty Journal 1991;7(2):243-247..

17-N.Okçu, A. Yılmaz. The Effect of Histamine H2 -Receptor Antagonists in Upper Gastrointestinal System Bleeding. Endoscopy Journal 1991;2(4):17-23.

18-N.Okçu, E. Bakan, B. Adam, A. Yılmaz, Mr. Yiğitoğlu. Sex Hormones and Sex Hormone Binding Globulin Levels in Patients with Chronic Hepatitis and Liver Cirrhosis (Letter to the Editor). Nature-Tr. J. Of Medical Sciences 1991;15:1-2.

19-N.Okcu Ömer Yılmaz.Helıcobacter pylori and related gastrointestinal system diseases. Turkish Clinics JMed Sci. 2013;33(3):806-13

20-Nihat Okçu, Ömer Yılmaz, Hakan Dursun, Gülçin Polat. The relationship between dyspeptic symptoms, nutritional habits, endoscopic and histological findings (Eurasian J Med 2006; 38: 13-17)

21-Mehmet Bilici,1Nihat Okcu,1Kerim Cayir,1Ibrahim Pirim,2Salim B. Tekin,1andCemal Gundogdu3 - Distribution of HLA Tissue Groups in Patients with Gastric Cancer Eurasian J Med. 2010 Apr; 42(1): 9.11.

22-Nihat Okcu,Abdulhalim Bak,Mehmet Sari,Mehmet Arslan,Sait Kapicioglu:The fibroblast proliferation, relationship of hepatocyte growth factor (HGF) and interferon-A2A Gastroenterology April 2000Volume 118,Issue 4, Part 2, PageA1404

23-Kubra Kaynar,Sait Kapicioglu,Mehmet Sari,Nihat Okcu,Abdulhalim Baki. The effect of fish oil on stress ulcer prophylaxis GastroenterologyVolume 118, Issue 4, Part 2, PageA1255

Professor Kyu Taek Lee is a top gastroenterologist from South Korea, specializing in the management of pancreatic, bile duct and gallbladder cancers. He is a Gastroenterology specialist at Samsung Medical Center and has degrees from Hanyang University College of Medicine, Stanford University School of Medicine, and Kyoto Second Red Cross Hospital. He is also a member of The Korean Society of Gastrointestinal Endoscopy and The Korean Society of Gastroenterology.

Professor Gerhard Prager is a highly experienced bariatric surgery specialist with over 3,000 operations for obesity treatment. He is the head of the Obesity Outpatient Clinic in Vienna General Hospital and head of the Metabolic Surgery Center in Confraternitaet Private Hospital. He is a member of several organizations such as the IFSO-European Chapter, the Austrian Obesity Association, the International Federation for the Surgery of Obesity and Metabolic Disorders, the Austrian Society of Surgery, the Austrian Society of Bariatric Surgery, and the American Society for Metabolic & Bariatric Surgery.

Viral hepatitis A, B, C, D

Cirrhosis

Autoimmune liver diseases

Fatty liver

Diseases of the stomach and intestines

Diseases of the pancreas

Services in the field of biological medicine:

Treatment of various drug-induced liver poisonings, viral hepatitis (hepatitis B, hepatitis C), hepatosis, hepatosterosis, autoimmune hepatitis.

EDUCATION: Azerbaijan Medical University

EXPERIENCE:

2009-2010 General practitioner in a private clinic.

Clinic of biological medicine since 2011.

TRAINING AND MEMBERSHIP:

In 2013-2014, internship on viral hepatitis at the Department of Microbiology and Infection, as well as at the Department of Gastroenterology, Faculty of Medicine, Ege University, Turkey.

Ankara Hacettepe Hospital

Education

Ondokuz Mayıs University Faculty of Medicine (1991)

KTÜ Faculty of Medicine Farabi Hospital (Specialization.1998)

Istanbul University Çapa Faculty of Medicine (Laparoscopic Surgery Training, 2002)

Istanbul University Çapa Faculty of Medicine (Laparoscopic Antireflux Surgery Training, 2006)

Istanbul University Cerrahpaşa Faculty of Medicine (General Surgery Clinic Advance Laparoscopic Surgery, Laparoscopic Bariatric Surgery, Morbid Obesity and Oncological Cancer Surgery Training, 2010i)

Specializations

Cancer Surgery

Pancreatic Surgery

Bile Duct Surgery

Bariatric Metabolic Surgery

Oncological Surgery

Breast Surgery

Gastric cancer

Colon cancer

Thyroid Cancer

Obesity Surgery

Diabetes Surgeries

Education

Studied at the Medical School of the University of Giessen, Germany (1996 - 2003)

Specialization in Pathology (2009)

Specialization in Gastroenterology (2012)

Professional Experience

Resident in Special Pathology at Klinikum Offenbach, Germany (Jul 2003 - Aug 2009)

Resident in Gastroenterology at Klinikum Offenbach, Germany (Aug 2009 - Dec 2012)

Commissioner of the Gastroenterology Clinic at Klinikum Offenbach, Germany Apr 2010 - Aug 2014 (Director: Prof. Dancygier Apr 2010-Mar 2014, Prof. Ell Apr 2014 - Aug 2014)

Senior Attending Physician (Deputy Director) at the Department of Gastroenterology, Kreiskliniken Darmstadt-Dieburg Hospital, Germany Sep 2014 - Dec 2020 (Director Dr. Dotzel)

Director of the Gastroenterology Department at the German Oncology Centre in Limassol, Cyprus (Jan 2021 to date)

Education and Expertise

• 1979 - DR - ANKARA UNIVERSITY FACULTY OF MEDICINE
• 1984 - SPECIALIST DR. - EGE UNIVERSITY FACULTY OF MEDICINE INTERNAL DISEASES
• 1992 - SUB-BRANCH SPECIALIST DR. - EGE UNIVERSITY FACULTY OF MEDICINE GASTROENTEROLOGY CLINIC
• 1994 - ASSOC. PROFESSOR - EGE UNIVERSITY
• 2000 - PROFESSOR DR. - EGE UNIVERSITY

Diseases

• Inflammatory Bowel Diseases (Ulcerative Colitis, Crohn's Disease)
• Large Intestine Diseases
• Liver Diseases
• Liver Inflammation
• Liver Cancer
• Fatty Liver
• Stomach Diseases
• Pancreatitis
• Pancreas Cancer
• Digestive System Diseases
• Digestive system cancer
• Cirrhosis
• Diseases of the Esophagus

Treatment Methods

• Balloon Stent Applications in Achalasia
• Spark Plug Applications
• ERCP
• Endoscopic Treatments for Digestive System Canal Strictures
• Endoscopic Treatment of Digestive System Polyps
• Stent 

EDUCATION AND ADVANCED TRAINING COURSES

• 1989 - received higher medical education at the Hebrew University;
• 1995 - completed residency in internal medicine and gastroenterology at the Hadassah University Hospital.
• 2001 - 2002 - Internship with Professor Scott Friedman in the Department of Liver Diseases at Sinai School of Medicine in New York.

Today, Professor Rifaat Safadi is an outstanding specialist in the field of liver disease treatment, a member of the committee for the development of the somatic cell transplant center and the head of the liver disease unit at Hadassah Medical Center. The professor is a member of several international associations for the study of the liver and is the author of numerous articles in his specialty. Professor Safadi is a member of the editorial board of the scientific medical journal Clinical Science.

Rifaat Safadi is a laureate of many scientific awards. In particular, he has been repeatedly awarded the Hadassah Prize for studying the process of immune modulation of liver fibrosis using mRNA. For achievements in the same field, the professor received the Sharon Donsky and the Israeli Association of Gastroenterology and Hepatology awards.