She has been working as an internal medicine specialist and medical oncology specialist at Anadolu Medical Center since 2021.
Dr. Tarık Akar is an experienced internist. He graduated from Cerrahpaşa School of Medicine, Istanbul University in 2000. He completed his specialty training in 2004. Dr. Akar has published 19 international and 6 local papers. He has also presented 25 papers at medical congresses. These achievements show his strong contribution to medical science.
Dr. Akar specializes in advanced endoscopic procedures. These include POEM for achalasia, ESD for early-stage gastrointestinal cancers, and ERCP for bile duct disorders. He also performs Z-POEM for Zenker’s Diverticulum and G-POEM for gastroparesis. He has received awards such as Best Verbal Presentation and Best Poster at the 7th International Gastrointestinal System Cancers Congress.
Dr. Mustafa Solak is a medical oncologist with expertise in breast, testicular, ovarian, lung, head-neck, and gastrointestinal cancers. He graduated from Hacettepe University School of Medicine. He completed his residency at Istanbul Sisli Etfal Teaching and Research Hospital. He then pursued a fellowship at Hacettepe University Cancer Institute.
Dr. Solak has managed many complex cancer cases. He has contributed to clinical advancements at respected centers, including the University of Texas MD Anderson Cancer Center. He has also worked at Hitit University Corum Training Hospital and Medical Park Hospital. His experience shows a strong commitment to cancer care and research.
Prof. Dr. Engin Tutar was born in Istanbul in 1964. He completed his primary and secondary education at Istanbul Erkek Lisesi between 1975 and 1982, and graduated from Istanbul University Istanbul Faculty of Medicine in 1988. In December of the same year, he started his specialization in the Department of Pediatrics at Dr. Lütfi Kırdar Kartal Training and Research Hospital, becoming a specialist in Pediatrics in February 1993. He completed his subspecialty training in Pediatric Gastroenterology, Hepatology, and Nutrition at Marmara University Faculty of Medicine, becoming a subspecialist in 2006. He served as the Assistant Chief Physician and Acting Chief Physician at the 2nd Pediatric Clinic of Dr. Lütfi Kırdar Kartal Training and Research Hospital between 2010 and 2012. In May 2012, he transferred to Marmara University Faculty of Medicine, where he became an Associate Professor in Pediatric Gastroenterology, Hepatology, and Nutrition in 2014, and a Professor in 2020. Alongside his international and national article authorships, he has given over 50 presentations at congresses/courses/association meetings. He retired in May 2024 while serving as the head of the Pediatric Gastroenterology, Hepatology, and Nutrition department at Marmara University Faculty of Medicine. As of June 2024, he is accepting patients at Hisar Hospital Intercontinental.
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Dr. Sertkaya graduated from Konya Meram Science High School in 2001 and entered Gazi University Medical Faculty the same year, graduating in 2008. He completed his urology specialization at Haydarpaşa Numune Training and Research Hospital in 2014, becoming a urology specialist.
Since becoming a specialist, he has focused on the sub-branch of Andrology, attending various training sessions and conferences and performing surgeries with some of the world's leading Andrology professors. In 2017, he passed the written and oral proficiency exams conducted by the European Association of Urology, earning the title of "FEBU."
In 2020, Dr. Sertkaya achieved the rank of Associate Professor of Urology. His journey in Urology and Andrology, which began in 2008, continues at the Andro Expertise Male Health and Aesthetics Center, which he founded in 2022. He sees patients in his own clinic and performs surgeries at affiliated hospitals.
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Education and Specialization
Professional Memberships
• Turkish Medical Association
• Mediterranean Health Foundation
• Akdeniz University Development and Health Foundation
• Transplantation Organizations Coordination Association
• National Surgical Association
Education and Specialization
Work Experience
Expertise
Doctor Brenda Pastrana is a mexican surgical Oncologist.
Medical background.
Centro Medico Nacional 20 de Noviembre Issste, Surgical Oncologist in 2020.
Title by Universidad Autónoma de México UNAM.
Surgical Residency Instituto Mexicano del Seguro Social. 2015.
Title by Universidad de Quintana Roo.
Board Certified by Conacem from 2020 to 2025 number 2171
Board Certified by Conacem from 2025 to 2030 number 2171
Member of SMEO. Sociedad Mexicana de Oncología.
University teacher at Universidad Anahuac of Medicine since 2020.
INTERNAL MEDICINE / GASTROENTEROLOGIST AND HEPATOLOGIST
Graduation (M.D. From)
Bachelor of Medicine, Faculty of Medicine, Chiang Mai University
Certificates
Diploma in Internal Medicine, Faculty of Medicine, Chulalongkorn Memorial Hospital, Thai Red Cross Society
Diploma of Internal Medicine in Gastroenterology and Hepatology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University
Current Positions
INTERNAL MEDICINE / GASTROENTEROLOGIST AND HEPATOLOGIST AT INTRARAT HOSPITAL
Education:
Specialized Education and Experience:
Academic Career:
Dr. Juraj Letkovsky has been a gastroenterologist at the Gastroenterology Department of the National Cancer Institute (NOÚ) since 2017. He graduated in medicine in 2012 and earned a PhD in internal medicine in 2016. He obtained specialization in gastroenterology in 2018.
His practice focuses on advanced endoscopic diagnosis and treatment of digestive tract tumors. He performs endosonography and ERCP for pancreatic and biliary diseases.
He serves on the Young Gastroenterologists, Endoscopy, and Oncology sections of the Slovak Gastroenterology Society. He is a co-author of an ongoing multicenter study on colonoscopy quality in Slovakia. He holds certificates in diagnostic and interventional esophagogastroduodenoscopy (2022) and endoscopic retrograde cholangiopancreatography (2023).
Dr. Andrej Orságh is a gastroenterologist, certified in 2015. He has worked at the Gastroenterology Department of the National Cancer Institute (NOÚ) since 2016. Since 2019 he has been the institute’s specialist consultant for colorectal cancer screening. He leads the colorectal cancer screening working group of the Slovak Gastroenterological Society. He is vice-chair of its Endoscopy Section and chair of its Oncology Section.
He graduated from Comenius University in 2009. He trained at the Gastroenterology Clinic of the University Hospital in Bratislava and at the Slovak Medical University. He shares his expertise at professional conferences and in publications. He also teaches basic and advanced endoscopic techniques in NOÚ courses.
Dr. Boris Pekárek is a gastroenterologist. He graduated from the Faculty of Medicine, Comenius University in Bratislava in 2002. He worked at the Internal Medicine Clinic in Trnava from 2002 to April 2010. He obtained his specialization in gastroenterology in 2008.
Since April 2010, he has worked at the Gastroenterology Department of the National Cancer Institute. He has led the department since 2017. He completed several specialized training courses abroad. He focuses on endoscopic diagnosis and treatment of early tumors of the esophagus, stomach, colon, and rectum.
He served as chair of the Oncology Section of the Slovak Gastroenterological Society from 2018 to 2024. He is the current chair of its Endoscopy Section and a member of the Society’s committee. He publishes, lectures at conferences, and trains basic and advanced endoscopic techniques in Slovakia and abroad.
Dr. Daniela Osuská is a gastroenterologist. She graduated from the First Faculty of Medicine, Charles University, in 2010. From 2010 to 2019 she worked as a secondary physician at the Internal Medicine Clinic of Nitra University Hospital. There she began performing endoscopies. Since 2019 she has worked at the Gastroenterology Department of the National Cancer Institute. She earned her gastroenterology specialization in 2021.
She serves on the supervisory board of the Oncology Section of the Slovak Gastroenterological Society and the Section of Young Gastroenterologists. She publishes and presents her work in Slovakia and abroad. She also trains physicians in endoscopic techniques.
Dr. Bilal Ergul, MD, is a pioneering force in the field of gastroenterology.
His innovative treatment protocols have transformed the lives of many patients, including a remarkable case where he successfully treated a patient with a Peroral Endoscopic Myotomy (POEM) surgery.
Dr. Bilal Ergul, often says, ‘Healing is more than treating a condition; it’s about restoring hope and improving lives.’ This philosophy is evident in every aspect of his work, making his and his team truly inspirational figure in the medical community."
He has authored around 100 publications in different academic topics
Dr. Holovyna Svitlana is a gastroenterologist and nutritionist with more than 23 years of experience. She is a member of the Association of Dietitians and Gastroenterologists of Ukraine. She also belongs to the European Association for the Study of the Liver (EASL) and the Association of Preventive and Anti-Age Medicine.
Dr. Holovyna diagnoses and treats gastrointestinal disorders, metabolic diseases, and nutrition-related issues. She uses an integrated and evidence-based approach. Her focus is on restoring digestive health, managing chronic conditions, and improving patient well-being with personalized diet and treatment plans.
Dr. Seymur Aslanov is a specialist in internal medicine and gastroenterology. He received advanced training at Ege University Faculty of Medicine Hospital. Dr. Aslanov diagnoses and treats many gastrointestinal diseases. His expertise includes inflammatory bowel diseases, digestive system cancers, liver and pancreatic diseases, and gastrointestinal bleeding.
He is skilled in advanced endoscopic procedures. These include ERCP, colonoscopy, endoscopic polypectomy, and stenting for gastrointestinal stenosis. Dr. Aslanov has worked as a research assistant and subspecialist at Ege University. He has also served as an internal medicine specialist at Izmir Medical Point.
He is a member of the Izmir Medical Chamber.
ACADEMIC CAREER SUMMARY
Degree: Bachelor's
Field: Medicine
University: Atatürk University
Year: 2001
Degree: Master's
Field: Medicine
University: Atatürk University
Year: 2001
Specialization/Doctorate: Internal Medicine/Gastroenterology
University: İnönü University
Year: 2012
Associate Professorship: Gastroenterology
University: İnönü University
Year: 2018
Foreign Language: English, 67.5, 2007
H-index (WoS/Google): 8/10
Impact Factor: 8.1577
Key Research Work:
“Does apocynin increase liver regeneration in the partial hepatectomy model?” Yılmaz Bilgiç, Burhan Hakan Kanat, Onural ÖZHAN, Azibe YILDIZ, Zeynep AKSUNGUR, Mehmet Erman ERDEMLİ, Nigar VARDI, Yusuf TÜRKÖZ, Sami AKBULUT, Adem KÖSE, Hakan PARLAKPINAR. Turkish Journal of Medical Sciences, 2023 (53), 1-12 Q3.
Declared Project Title, Year:
K.3.6. “Investigation of the Effects of Vinpocetine in Sepsis Created by Cecal Ligation and Puncture in Rats” (Principal Investigator), 2023
International Experience:
Advanced Endoscopy Training, Anam Hospital, South Korea (3 months, 2016)
Advanced ERCP Course, Olympus Training Center, Hamburg (2017)
ADMINISTRATIVE POSITIONS