Born in Trabzon in 1972, Dr. İzzettin Kahraman began his medical studies at Karadeniz Technical University Faculty of Medicine in 1989 and earned his Medical Doctor degree in 1995. Following two years as a general practitioner, he embarked on his specialization training in 1997. He completed his residency at Ankara Oncology Training and Research Hospital, becoming a General Surgery Specialist in 2002.
Dr. Kahraman worked as a General Surgery Specialist in public hospitals, including Trabzon Numune Hospital and Bakırköy Dr. Sadi Konuk Training and Research Hospital, for 13 years. From 2016 to 2018, he served as a Lecturer at University of Health Sciences. In 2019, he transitioned to the private sector, continuing his career in private hospitals.
Throughout his career, Dr. Kahraman has engaged in a wide range of training programs both in Turkey and abroad. In 2007, he earned a Surgical Endoscopy Certificate and furthered his expertise in laparoscopic hernia treatments in Hamburg, Germany, in 2008. He also completed a course on Nutrition Practices and Training at Ondokuz Mayis University and a specialized course in laparoscopic hernia repair in Istanbul in 2010.
In 2011, after completing the "Emergency Surgery" course in Istanbul organized by the European Society for Trauma and Emergency Surgery (ESTES), Dr. Kahraman received training in SILS (Single Incision Laparoscopic Surgery) Cholecystectomy at Gazi University in Ankara. Since then, he has specialized in advanced laparoscopic techniques, with a particular focus on endoscopy, gastric diseases, obesity, and metabolic surgery.
In 2021, Dr. Kahraman obtained certificates in Ozone Therapy and Mesotherapy from Medipol University.
Since 2023, he has been serving at Estexper Clinic, Istanbul.
2011 – 2015, (Internal Medicine Specialist) Istanbul University Istanbul School of Education and Career
Medicine Department of Internal Medicine
2015 – 2016, (Internal Medicine) Specialist Istanbul Haydarpasa Numune Training and Research Hospital
2016 – 2019, (Medical Oncology) Istanbul University Istanbul School of Medicine Department of Medical Oncology
2019 – 2021, (Medical Oncology Specialist) - Istanbul Haydarpasa Numune Training and Research Hospital
2021 – 2024, (Associate Professor) Marmara University School of Medicine Department of Medical Oncology
Memberships in Scientific Organizations
ASCO
ESMO
TTOD
AVOD
Publications
In the field of oncology, he has published over 30 peer-reviewed articles at both international and national levels.
Awards Received
EAACI The European Academy of Allergy and Clinical Immunology 2019 Best Poster Award
"The top 3rd verbal presentation, IGICC (11th International Gastrointestinal Cancers Conference – IGICC2021)"
Speeches Delivered at National Congresses, Conferences, and Symposia:
Courses, Meetings, and Certificates
ESMO certified Medical Oncologist since 2019
Born in Ankara in 1978, Dr. Umut R. Gündüz began his medical career at the Cerrahpaşa Faculty of Medicine.
Later, he became a General Surgery Specialist at Okmeydanı Training and Research Hospital.
From 2011 onwards, they worked as a General Surgery Specialist at Antalya Training and Research Hospital.
In 2018, they became a Clinical Education Instructor. Dr. Umut Rıza Gündüz primarily focused on metabolic, breast, endocrine & other general surgeries.
In 2021, they worked as both a manager and a physician in the General Surgery department at Özel Termessos Hospital.
Since 2023, Umut R. Gündüz has been continuing to accept patients at their own clinic, mainly specializing in metabolic surgery and performing general surgery operations.
Some of Dr.Umut R. Gunduz’ Trainings;
Experience
Hospitalpark Darıca Hospital
Çarşamba State Hospital (1987-2004)
Arapgir State Hospital
Incirli Hospital (1983-1985)
Education
Istanbul University Cerrahpaşa Faculty of Medicine
Istanbul University Cerrahpaşa Faculty of Medicine General Surgery Specialization
Vocational Trainings, Courses and Conferences Attended
National Surgery Congress
Laparoscopic Surgery Course and Congresses
Professional Memberships
Laparoscopic Surgery Association
National Association of Surgery
Turkish Medical Association
Specializations
Oncological Surgery
Obesity and Type 2 Diabetes Surgery
Anorectal Diseases Surgery and Treatment
Stomach Hernia Surgery
Colon and Rectum Surgery
Breast Diseases and Cancer Treatment
Thyroid and Parathyroid Diseases Treatment
Treatment of Stomach and Gallbladder Diseases
Specializations
Obesity Surgery
Metabolic Surgery
Oncological Surgery
Breast Diseases and Cancer Treatment
Anorectal Diseases Surgery and Treatment
Treatment of Inguinal and Abdominal Wall Hernias
Thyroid and Parathyroid Diseases Treatment
Treatment of Stomach and Gallbladder Diseases
20 top ranked Gastroectomy doctors in the world are represented on this page. The list includes only verified specialists known for their experience and high success rates.
The ranking is composed according to the Bookimed patient reviews and considers the rating of hospitals where doctors practice.
Top 5 Gastroectomy doctors on Bookimed.com:
The specialist’s CV contains details about the doctor’s expertise and work experience, education, scientific research, and languages spoken. Compare information on several specialists, read carefully about their experience, success rates, and methods they apply. Make sure the chosen doctor has relevant experience in the treatment of a medical issue you are looking for. Read reviews of patients who had a consultation with the chosen specialist.
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Specializations
Liver and Gallbladder Diseases Surgery
Treatment and Surgery of Stomach and Small Intestine Diseases
Colon and Rectum Surgery
Treatment and Surgery of Anorectal Diseases (Hemorrhoids etc.)
Surgical Treatment of Abdominal Wall Hernias
Inguinal Hernia Surgery
Thyroid Diseases and Surgery
Breast Diseases and Cancer Treatment
Specializations
Obesity Surgery
Metabolic Surgery (Type 2 Diabetes Surgery)
Laparoscopic Cholecystectomy
Laparoscopic Reflux Surgery
Laparoscopic Appendectomy
Thyroid and Breast Surgery
Colon and Rectum Surgery
Stomach Surgery
Hemorrhoid Surgeries
Dr. Cüneyt Çiftdoğan was born in Ankara in 1971. After completing primary school in Gaziantep, he settled in Izmir and completed his secondary and high school education in Izmir. In the last years of his high school education, with his passion for white coats, he took the university exam and was accepted to Ege University Faculty of Medicine.
Cüneyt Çiftdoğan, who started his medical education at Ege University in 1988, graduated as a medical doctor in 1994 after an intensive and successful medical education. Cüneyt Çiftdoğan, who passed the Medical Specialization Examination (TUS) in 1997 and started his specialization training in the Department of General Surgery at Celal Bayar University Faculty of Medicine, took part in many successful operations until 2002 and had serious experience in the branch of general surgery. After his specialist training, Op. Dr. He was entitled to receive the title.
Dr. Cüneyt Çiftdoğan has been working as a General Surgery Specialist since 2002. He has equipped his professional skills and abilities with technological developments by working in many public and private hospitals.
Professional Interests
Metabolic and Obesity Surgery
Gastric Botox
Reflux Surgery
Goiter Surgery
Breast Diseases
Intestinal Tumor Surgery
Laparoscopic Gallbladder Surgery
Laparoscopic and Open Hernia Surgery
Liver Cystic Diseases
Colon Cancer Surgery
Rectum Cancer Surgery
Perinal Fistula
Fissure and Hemorrhoidal Diseases
Pilonidal Sinus Surgeries
Soft Tissue Tumors
Diagnostic Endoscopy and Colonoscopy
Memberships to Scientific Organizations
Izmir Medical Chamber
Turkish Surgical Association
Aegean Region Surgical Association
Aegean Region Breast Diseases Association
Educational Status
Institutions He Works For
Skills And Expertise
He was born in Istanbul in 1982. He graduated from Kocaeli University, Faculty of Medicine. In 2012, he worked as an emergency medical assistant at Taksim First Aid EAH.
Between 2013-2018, he specialized in general surgery at Haseki EAH. Then, between 2018-2020, he completed his compulsory service at Bitlis Tatvan State Hospital.
Since 2020, with Dr. Hasan Lice, they have worked with the Sava team for bariatric surgeries. He is married and has two kids.
He is also the deputy chief physician of the hospital.
He was born in 1967 in Istanbul. He completed primary, secondary, and high school in Istanbul.
He graduated from Capa Medical Faculty in 1993.He worked as an assistant at Taksim Training and Research Hospital between 1994-1998. Between 1998 and 2012,
he served on diagnosis and therapeutic solutions in General Surgery, Cancer Surgery, Laparoscopy Surgery, and Endoscopy in the 2nd Surgery Clinic at Haseki Training and Research Hospital. He is married and has 2 children. He speaks Turkish and English.
Gallbladder and bile duct surgery
Breast disease treatment and surgery
Anal region disease treatment and surgery (hemorrhoids, anal fissure, perianal abscess and fistula surgery)
Obesity treatment (Gastric balloon, botox and surgical treatment)
Thyroid diseases and surgical treatment
Hernia surgery (open and laparoscopic) (groin, umbilical, wound hernias)
Colon, rectum, stomach diseases and surgical treatment
Endoscopic diagnosis and treatment interventions (gastroscopy, colonoscopy, ercp, peg)
2009- Atlas University Medicine Hospital
2004-2009 Tosya State Hospital
1994-2004 Taksim Education and Research Hospital
1999-2004 Taksim Education and Research Hospital General Surgery Clinic
1992-1998 Istanbul University Istanbul Faculty of Medicine
Courses and Conferences
Bakırkoy Dr. Sadi Konuk Education and Research Hospital General Surgery Clinic Endoscopy Unit Videoendoscopy Application Certificate (March 2006)
Education
-Undergraduate Education (6 years) İstanbul University
-Cerrahpaşa Faculty of Medicine 2000 - 2006
-Specialization in Medicine İstanbul University Cerrahpaşa Faculty of Medicine 2007
Medical Field of Interests
-Gastric sleeve
-Gastric bypass
-Gastric balloon
-Swallowable Gastric balloon Metabolic surgery
-Revision Surgery
Experience
-20 Years of Surgical Experience 3000+ Obesity and Metabolic Surgery
PUBLISHMENTS
3 Articles Published in National Refereed Journals
18 Papers Presented at International Scientific Meetings and Published in the Proceedings Book
Some of the most relevant points in Dr. Rosales' CV are:
- Dr. Gabriel Rosales obtained his medical degree from the Universidad de Monterrey in Monterrey, Mexico, accredited by the Southern Association of Colleges and Schools (SACS).
- He completed his residency in general surgery and advanced laparoscopy at the Hospital Christus Muguerza Alta Especialidad hospital endorsed by the Joint Commission International (JCI).
- He completed his advanced training in laparoscopic skills at the Hospital Christus Muguerza Alta Especialidad.
- Member of the International Federation for the Surgery of Obesity and Metabolic Diseases (IFSO)
- Member of the American Society of Endoscopist Surgeons (ASMBS)
- Active Member of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) .
- Member of the Mexican Association of Endoscopic Surgery.
- Belongs to the International Council of Medicine and Surgery based on the United States (International Board of Medicine and Surgery (IBMS).
- Certified by the Mexican Council of General Surgery.
- Has completed multiple training courses in Mexico and the United States.
- Member of the surgical staff of the most recognized Hospitals in northern Mexico.
- As an experienced surgeon in obesity surgery in Monterrey, Piedras Negras and Laredo, he is recognized by his patients and colleagues.
EXPERIENCE AND STUDIES/MEETINGS
He focused his career in the field when he realized that bariatric surgery procedures offer patients such a life-changing experience.
Throughout his career he has participated in more than 8000 gastric sleeve and Lap band procedures.
- Completed his general surgery and advanced laparoscopic residency at Christus Muguerza High Speciality Hospital a Joint Commission International accredited hospital.
- Multiple training courses in Mexico and USA.
- As an experienced weight loss surgeon in Piedras Negras, Nuevo Laredo and Monterrey, Mexico, he is highly regarded by his patients and peers a like.
These professional affiliations allow Dr. Rosales to remain on the leading-edge of developments in weight loss surgery, so that he can provide innovative, effective treatment to all of his patients. Fluent in English and Spanish, Dr. Rosales welcomes patients from throughout Mexico, the United States, and Canada.Dr. Rosales takes pride in his work, and nothing gives him more satisfaction than the health, happiness, and joy that his patients are able to achieve following weight loss surgery.
Dr. Gabriel Rosales earned his medical degree at the Universidad de Monterrey in Monterrey, Mexico, a Southern Association of Colleges and Schools accredited university. (SACS from the U.S.)
He completed his residency in General Surgery at Christus Muguerza High Specialty Hospital.
Dr. Ayman is a Medical Doctor and Surgeon specializing in General and Bariatric Surgery, with extensive training and experience in minimally invasive surgery and obesity management.
Doctor earned his Master's Degree in Medicine and Surgery from the University of Brescia in 2005. He then completed his specialization in General Surgery at the same university in 2016, with a thesis titled "Fast track in minimally invasive colon surgery. He has complete autonomy in the clinical management of complex patients and extensive experience in performing a variety of surgical procedures, including major surgeries. His expertise includes gastric and colorectal surgery, bariatric surgery, abdominal wall surgery, videolaparoscopic (VLC) and laparotomic (VLA) procedures, and proctology. He is particularly skilled in performing medium and major surgeries in emergency settings.
Currently, he practices at Maria Cecilia Hospital in Bologna, where he evaluates the degree of obesity and associated conditions. Based on these assessments, he determines the most suitable surgical intervention, such as sleeve gastrectomy, gastric bypass, and mini laparoscopic bypass.
He has advanced training in colorectal and abdominal wall surgery from top institutions in Italy and Belgium.
He is an active member of the Italian Society of Obesity Surgery and Metabolic Disorders (S.I.C.OB.) and the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO), contributing to the advancement of bariatric surgery on an international level.
Dr. Ayman is distinguished by his dedication to patient care and his advanced skills in minimally invasive and bariatric surgery.
