Prof. Dr. Alaettin Çelik graduated from Adapazarı Ilyaslar Primary School in 1960, from Haydarpaşa High School in 1966 and from Istanbul University Faculty of Medicine in 1972. In the same year, he became an assistant in the 2nd Surgery Department of the Faculty of Examination, and between November 1975 and February 1976, he did his military service for 4 months in the Gelibolu Military Hospital as a Reserve Officer. In 1977, he became a General Surgery Specialist in the Department of Surgical Surgery.
To establish the pediatric surgery department at the faculty and to expertise his speciality, he worked as a registrar at the London University “The Hospital for Sick Children” between 01.12.1978 – 01.12.1980. After returning to the faculty, he continued his pediatric surgery studies. He became an associate professor in 1982.
In the same year, he was appointed as the founding chairman of Pediatric Surgery Department of Istanbul Faculty of Medicine on 06.09.1982. He established the department of Pediatric Surgery with a capacity of 30 inpatients, an ICU, a polyclinic, and an operating room for students, assistants and specialists. In 1988 he became a professor. In addition to the Department of Pediatric Surgery, he was the Vice President of the Department of Surgical Medical Sciences between 1990 and 1995. Between 1995 and 1998, he served as the Head of the Department of Surgical Medical Sciences at the Istanbul Faculty of Medicine.
He is a specialist in General Surgery, Pediatric Surgery and Pediatric Urology. He has numerous cited and published clinical and experimental research articles, case reports, expert theses, free papers in domestic and international congresses (2014), Pediatric Surgery Book of Pediatric Surgery (2014), Newborn Surgery (2008), Pediatric Surgery Book (2013).
He is a member of various professional medicine associations. He is also a member of the Turkish Ministry of Health Pediatric Surgery Society. He established, developed and trained a large number of students, assistants, experts and faculty members at the Istanbul Faculty of Medicine, Department of Pediatric Surgery. He left the Department of Pediatric Surgery in 2013. He retired from the age limit on 16.03.2016. The contracted working period in the same faculty ended on 22.10.2016. The Council of Children's Tumors conducts weekly meetings and he is still working as Pediatric Surgery Specialist in Istanbul Florence Nightingale Hospital
Education and Experience
Dr. Ramazan Gökhan Atış, born in Istanbul in 1978, graduated from Cağaloğlu Anatolian High School in 1996. He completed his medical education at Çapa Faculty of Medicine in 2002. Between 2002 and 2008, he received his specialization training at the Istanbul Şişli Etfal Training and Research Hospital Department of Urology, and obtained the title of Urology Specialist in February 2008. After working at Edremit Military Hospital between 2008 and 2009, he started working as a Urology specialist at Istanbul Göztepe Training and Research Hospital in 2009. In 2011, he underwent a 3-month Laparoscopy-Robotic Urology training at Heidelberg University Heillbronn Clinic. Between 2009 and 2014, he conducted numerous scientific research studies, especially in the field of endourology, and obtained the title of Associate Professor in September 2014. In 2017, he was elected as a board member of the Endourology Society and has been serving in this position since then. Since 2018, he has been actively involved in the Endourology working group of the European Association of Urology, Young Academic Urologists (EAU-YAU) Committee for a period of 2 years. In January 2021, he was appointed as a Professor at the Istanbul Medeniyet University Department of Urology.After that started working at Şişli Memorial Hospital in 2022. Prof. Dr. Ramazan Gökhan Atış, has more than 100 articles published in national and international journals.
Administrative Duties
Memberships in Scientific Organizations
Medicine Pr. - Specialization Dokuz Eylül University Faculty of Medicine 1991 - 1998
Department of General Surgery - Pamukkale University Faculty of Medicine 2001 - 2007
Specialist Doctor Erciş State Hospital Van 2007 - 2009
Specialist Doctor Gölhisar State Hospital 2009 - 2009
Clinical Fellow Şişli Florence Nıghtıngale Hospital 2011 - 2012
Assistant Professor Pamukkale University / Faculty of Medicine / Department of Surgical Medical Sciences / Department of General Surgery) 2009 - 2013
Assistant Professor Akdeniz University/Faculty of Medicine/Department of Surgical Medical Sciences/Division of General Surgery)- Prof. Dr. Tuncer Karpuzoğlu Organ Transplant Center 2013
Turkey Organ Transplant Organizations Coordination Association, Member, 2011
National Surgical Association, Member, 2005
Medical Specialization: General Surgery, Istanbul University Istanbul Faculty of Medicine, 2008-2013
Faculty of Medicine: Marmara University Faculty of Medicine (English), 2000-2007
Associate Professor Doctor: General Surgery, Istanbul University Istanbul Faculty of Medicine, 2024-Present
Associate Professor: General Surgery, Biruni University Hospital, 2024-Present
General Surgery Specialist: Istanbul University Istanbul Faculty of Medicine, 2016-2024
General Surgery Specialist: Biruni University Faculty of Medicine, 2023-2024
General Surgery Specialist: Kırkağaç State Hospital, Manisa, 2014-2016
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Istanbul University Istanbul Faculty of Medicine, Department of General Surgery, May 2007
Istanbul University Istanbul Faculty of Medicine, July 2001
2007-2008 Şırnak Military Hospital
2008-2009 Bağcılar Training and Research Hospital
2010-2011 Istanbul Faculty of Medicine Organ Transplantation
2011-2012 Başkent University Organ Transplantation
2013-2017 Erciyes Universityniversity Organ Transplant
2017-2019 Bilim University FNH Organ Transplant
2019-2020 Yeditepe University Organ Transplant
2020-2023 Biruni University Medicana Hospital Organ Transplant
Istanbul Medical Chamber
Turkish Surgical Association
Turkish Hepatopancreatobiliary Surgery Association
ILTS