Halaman 3 - Kolonoskopi Dokter Terbaik - TOP-119 dokter

Univ.-Prof. Dr. Wolfgang Johannes Köstler is a board-certified specialist for Internal Medicine, Hematology/Oncology, and Intensive Care Medicine who specializes in hematology & internal oncology, intensive care medicine. He is one of the top-rated breast cancer and sarcoma oncologist specialists and has extensive experience in the field and has received degrees from the Medical University of Vienna and the Weizmann Institute of Science. He has also had special training at Memorial Sloan-Kettering Cancer Center and Royal Prince Alfred Hospital.

Education:

• Degree: Faculty of Medicine, Trakya University, 2009
• Medical Specialty: Internal Medicine, Bakırköy Dr. Sadi Konuk Training and Research Hospital, 2010-2014
• Specialist Doctor: Internal Medicine, Kanuni Sultan Süleyman Training and Research Hospital, 2014-2019
• Specialist Doctor: Internal Medicine, Turkish Hospital Internal Medicine Clinic, Qatar, 2019-2020
• Specialist Doctor: Internal Medicine, Istanbul Medipol University Hospital Mega Hospital Internal Medicine Department, 2020-2024
• Associate Professor Doctor: Internal Medicine, Istanbul Medipol University Medipol Acıbadem Regional Hospital, 2024-Present.

Roles in Projects:

Sub investigator (Assistant Researcher) in the SOUL Study: Cardiovascular Outcome Research of Semaglutide in Type 2 Diabetic Patients, approved by the Turkish Medicines and Medical Devices Agency on May 22, 2019.

Sub investigator (Assistant Researcher) in the international study “SCALE™ Insulin”: Efficacy and Safety of Liraglutide 3.0 mg in Overweight or Obese Patients with Type 2 Diabetes Treated with Basal Insulin (Study Code: NN8022-4272), conducted by Novo Nordisk A.Ş.

Subinvestigator (Assistant Researcher) in the international study NN5401-4266 StepByStep Intensification conducted by Novo Nordisk.

Assistant Researcher in the study "A Research Study to Compare Semaglutide to Insulin Aspart, When Taken Together With Metformin and Insulin Glargine, in People With Type 2 Diabetes (SUSTAIN 11)" (2019-2020).

Assistant Researcher in the PIONEER 1 study: Randomized Clinical Trial of the Efficacy and Safety of Oral Semaglutide Monotherapy in Comparison With Placebo in Patients With Type 2 Diabetes.

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)

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

Dr. Ercan Ozden is a specialist in internal medicine and medical oncology. He earned his medical degree and completed his residency at Istanbul University, Cerrahpaşa Faculty of Medicine. He later received a subspecialty in medical oncology at Kocaeli University Faculty of Medicine from 2016 to 2020.

Dr. Ozden has worked in medical oncology at Şırnak State Hospital. He has also served as an internal medicine specialist at Bağcılar Private Safa Hospital and Küçükçekmece Batı Bahat Hospital. He has extensive clinical experience in both internal medicine and oncology.

Education

Doctor of Medicine (M.D.) degree from Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 2022

Certifications

Certification of Anti-aging and Regenerative Medicine from The American Board of Antiaging and Regenerative Medicine (ABAARM)

Certification of Nutritional Wellness from The American

Naturopathic Certification Board (ANCB)

Clinical Focus

General disease diagnosis and treatment, as well as wellness care

Languages spoken: Thai and English

Dr. Baha Zengel is a general surgeon with expertise in breast, gallbladder, thyroid diseases, and hernia repairs. He graduated from Ege University Faculty of Medicine in 1990. In 2004, he earned a doctorate in Basic Oncology from Dokuz Eylül University. He became an Associate Professor of General Surgery in 2014 through the Inter-University Board.

Dr. Zengel is skilled in advanced surgical procedures. His experience includes skin and breast-conserving mastectomy, oncoplastic breast surgery, laparoscopic cholecystectomy, sentinel lymph node biopsy, and ROLL/SNOLL techniques. He has held important positions at Izmir Bozyaka Training and Research Hospital, including Education Officer.

He is a member of several professional associations. He serves on the Board of Directors of the Aegean Region Surgery Association and is a founding board member of the Basic Oncology Association.

Dr. Omer Burcak Binicier is a gastroenterology specialist with strong medical training. He earned his medical degree at Ege University. He completed his internal medicine and gastroenterology specialization at Dokuz Eylül University Faculty of Medicine. Dr. Binicier has over ten years of clinical experience. He has held key positions at SBÜ Tepecik Training and Research Hospital and İzmir Bayraklı City Hospital. He also gained international experience at Korea University.

Dr. Binicier diagnoses and treats a wide range of gastrointestinal diseases. His expertise includes early colon and stomach cancers, inflammatory bowel diseases, liver and pancreatic disorders, and digestive system cancers. He uses advanced endoscopic techniques such as EMR, ESD, ERCP, and endoscopic ultrasound. He is also skilled in minimally invasive obesity treatments. His clinical skills are built on years of hands-on work in top medical centers.

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at İstinye University, Liv Hospital Topkapı (2025–present). He previously served as Associate Professor and Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital (2023–2025). He was also a Medical Oncologist there (2018–2021).

He has been a member of ASCO and the Turkish Society of Medical Oncology since 2018. He is the author or co-author of 19 peer-reviewed international papers on colon, breast, gastric, pancreatic, lung, thyroid, sarcoma, and colorectal cancers.

Notable works include a multicentre study on stage IIB colon cancer survival (Journal of Chemotherapy). He also studied the De Ritis ratio for lung metastasis in testicular cancer (Current Urology). His prognostic studies used PET/CT, MSI, lymph node ratio, and metabolic tumor volume.

Dr. Irfan Cicin is a Professor of Medical Oncology at the Trakya University Faculty of Medicine (2015–present). He has over 20 years of medical oncology experience and has held academic roles since 2010.

Education: MD, Istanbul University – Cerrahpaşa (1991–1997). Residency in Internal Medicine, Trakya University (1997–2002). Fellowship in Medical Oncology, Trakya University (2002–2004).

Practice: Medical Oncologist, Trakya University (2005–2008). Medical Oncologist, Elazığ Training and Research Hospital (2008–2010). Associate Professor of Medical Oncology, Trakya University (2010–2015). He previously served as a physician in the Turkish Air Force at Etimesgut Military Hospital (2004–2005).

Dr. Zuhal Cakmak Peksen is a Family Medicine Specialist since 2017. She earned her MD from Çukurova University in 2010. She completed specialty training at Yüzüncü Yıl University between 2013 and 2017. She is currently studying for a bachelor’s degree in Health Management at Anadolu University (2024–present).

She has 15 years of clinical practice (2010–2025) across 8 institutions. Her experience includes research in Family Medicine (2013–2017) and work at several Family Health Centers. Since 2020, she has served at TOKİ Avrupa Family Health Center in Gaziosmanpaşa, Istanbul.

Prof. Selin Kapan has been a Professor of General Surgery since 2017. She is currently with Istanbul Aydın University, Faculty of Medicine, Department of General Surgery (2022–present). She previously worked at Bakırköy Dr. Sadi Konuk Training and Research Hospital as a Specialist and Associate Professor. She also served as Educational and Administrative Supervisor at Kanuni Sultan Süleyman Training and Research Hospital. In addition, she was Medical Coordinator and General Surgeon at Istanbul Surgery Hospital.

She has authored or co-authored more than 50 peer-reviewed papers. Her research covers hernia repair, perianal fistula, pilonidal disease, hepatic hydatid disease, laparoscopic surgery, and gastrointestinal surgery. Her work has been published in journals such as Digestive Surgery, Hernia, Techniques in Coloproctology, and the Journal of Gastrointestinal Surgery. She is a member of the Turkish Surgical Association, the National Trauma and Emergency Surgery Association, the Hernia Society, the Turkish HPB Surgery Association, the Stem Cell and Cellular Therapies Association, and the Gastroesophageal Reflux Association.

Oncologist-mammologist

Treatment of mastopathy, which causes pain and swelling of the mammary gland

Treatment of large breast cysts without surgical aspiration

Treatment of duct ectasia (dilation) and galactorrhea

Obtaining a smear from the secretion of the mammary gland

Treatment of adenosis and other precancerous diseases of the mammary gland

Biopsy of pathological formations on the skin of the mammary gland

Hormonal treatment for breast cancer

Treatment of precancerous diseases of other organs

Cancer Treatment

Symptomatic treatment of cancer patients

Mistletoe therapy and cancer treatment with high doses of vitamin C.

Elimination of complications and side effects of chemotherapy and radiation therapy

Pain Treatment for Cancer Patients (Natural Pain Relief and Life Extension)

Participant of many conferences and seminars with the participation of German doctors in Azerbaijan, as well as in Germany and Turkey.

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

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)

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