Associate Professor Gökhan Demirayak
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reviews
03/04/2022
11/04/2022
03/04/2022
31/03/2022
30/03/2022
29/03/2022
29/03/2022
04/05/2025
Associate Professor Gokhan Demirayak is a Turkish specialist in obstetrics, gynecology and gynecologic oncology. Since 2022 he has been practicing at Memorial Şişli Hospital in Istanbul, Turkey.
He completed his medical degree at the Faculty of Medicine of Kocaeli University (Kocaeli Üniversitesi Tıp Fakültesi) in 1999–2005. He completed his residency in obstetrics and gynecology at the Cerrahpaşa Faculty of Medicine of Istanbul University (İstanbul Üniversitesi Cerrahpaşa Tıp Fakültesi) in 2008–2012. He completed his subspecialty (yan dal) training in gynecologic oncology in 2019 at the Bakırköy Dr. Sadi Konuk Training and Research Hospital of the University of Health Sciences (SBÜ Bakırköy Dr. Sadi Konuk EAH). In 2016 he attended Memorial Sloan Kettering Cancer Center (New York, USA) as an observer. Since 2019 he has been pursuing a PhD in molecular oncology at the Hamidiye Health Sciences Institute of the University of Health Sciences (SBÜ Hamidiye Sağlık Bilimleri Enstitüsü).
Career path: 2005–2006 — general practitioner at the Çaykara/Ataköy district health center (Trabzon); 2012–2014 — specialist in obstetrics and gynecology at the Derince Training and Research Hospital (SBÜ Derince EAH, Kocaeli); 2014–2016 — specialist in obstetrics and gynecology at the Okmeydanı Training and Research Hospital (SBÜ Okmeydanı EAH, Istanbul); 2019–2022 — head of training and administration at the Gynecologic Oncology Clinic of Bakırköy Dr. Sadi Konuk Training and Research Hospital (SBÜ Bakırköy Dr. Sadi Konuk EAH); from 2022 — specialist in obstetrics, gynecology and gynecologic oncology at Memorial Şişli Hospital. He received the title of Associate Professor (Doçent) in 2020.
In clinical practice he uses modern minimally invasive techniques: robot-assisted Da Vinci surgery, laparoscopic surgery and vNOTES (scarless surgery). Main areas of expertise — surgical treatment of cervical, uterine (endometrial), ovarian and vulvar cancer, as well as fibroids, pelvic organ prolapse, endometriosis and HPV-related conditions.
He is actively engaged in scientific work: he has authored 27 international and 10 national publications, 3 chapters in international books and translations, and has delivered 32 oral presentations at national and international congresses. He is a member of 7 professional associations, including the European Society of Gynaecologic Oncology (ESGO).
Detailed information about his professional awards and achievements is available in the section below.
Consultations are provided in Turkish and English.
Achievements and awards of Doctor Gokhan Demirayak
About Doctor Gokhan Demirayak
- Cervical cancer surgery
- Uterine (endometrial) cancer surgery
- Ovarian cancer surgery
- Vulvar cancer surgery
- Surgery of gestational trophoblastic tumors
- Robot-assisted surgery on the Da Vinci system
- Laparoscopic (minimally invasive) surgery
- vNOTES — scarless surgery
- Laparoscopic hysterectomy
- Laparoscopic myomectomy
- Laparoscopic surgery for endometriosis
- Pelvic organ prolapse surgery
- Diagnosis and treatment of HPV infection and cervical dysplasia
- Colposcopy and cervical biopsy
- 1999–2005 — Faculty of Medicine, Kocaeli University (Kocaeli Üniversitesi Tıp Fakültesi), Kocaeli, Turkey — Doctor of Medicine (MD)
- 2008–2012 — Residency in Obstetrics and Gynecology, Cerrahpaşa Faculty of Medicine, Istanbul University (İstanbul Üniversitesi Cerrahpaşa Tıp Fakültesi), Istanbul, Turkey
- 2016–2019 — Subspecialty (yan dal) in Gynecologic Oncology, Bakırköy Dr. Sadi Konuk Training and Research Hospital, University of Health Sciences (SBÜ Bakırköy Dr. Sadi Konuk EAH), Istanbul, Turkey
- 2016 — Short-term observership program, Memorial Sloan Kettering Cancer Center, New York, USA
- 2019 — present — PhD in Molecular Oncology, Hamidiye Health Sciences Institute, University of Health Sciences (SBÜ Hamidiye Sağlık Bilimleri Enstitüsü), Istanbul, Turkey
- 2020 — awarded the title of Associate Professor (Doçent)
Doctor Gökhan Demirayak has more than 20 years of medical experience. His career path has taken him through a number of leading training and research hospitals in Turkey; he currently practices at Memorial Şişli Hospital in Istanbul.
- 2005–2006 — Çaykara/Ataköy district health center (Çaykara/Ataköy Sağlık Ocağı), Trabzon, Turkey — General practitioner
- 2012–2014 — Derince Training and Research Hospital, University of Health Sciences (SBÜ Derince EAH), Kocaeli, Turkey — Specialist in obstetrics and gynecology
- 2014–2016 — Okmeydanı Training and Research Hospital, University of Health Sciences (SBÜ Okmeydanı EAH), Istanbul, Turkey — Specialist in obstetrics and gynecology
- 2019–2022 — Bakırköy Dr. Sadi Konuk Training and Research Hospital, University of Health Sciences (SBÜ Bakırköy Dr. Sadi Konuk EAH), Istanbul, Turkey — Head of training and administration of the Gynecologic Oncology Clinic
- 2022 — present — Memorial Şişli Hospital (Memorial Şişli Hastanesi), Istanbul, Turkey — Specialist in obstetrics, gynecology and gynecologic oncology. Works within the Endometriosis Center, the Robotic Surgery Center and the Gynecologic Oncology unit
Certificates:
- Certificate in Gynecologic Oncology Surgery (Jinekolojik Onkoloji Cerrahisi). Confirms the qualification to perform surgery for gynecologic oncological diseases. Issued by the Ministry of Health of the Republic of Turkey (Türkiye Cumhuriyeti Sağlık Bakanlığı) — 2019.
- Certificate in Robot-Assisted Surgery (Robotik Cerrahi Eğitimi). Confirms training in working with the Da Vinci surgical system — 2016.
- Certificate of the Turkish Surgical Society (Türk Cerrahi Derneği) for the course on stapler training and use (Stapler eğitimi ve kullanımı) — 28.04.2018.
- Certificate of the vascular surgery course of the Turkish Surgical Society and Istanbul University Faculty of Medicine (vasküler cerrahi kursu) — 03.06.2017.
- Certificate of the Turkish Surgical Society course on management of difficult wounds and modern practical surgical approaches (Cerrahide zor yara yönetimi ve uygulamalı güncel yaklaşımlar kursu) — 10.03.2018.
Doctor Gökhan Demirayak is actively involved in scientific and academic work in the field of gynecologic oncology. According to official data, he has authored 27 international and 10 national scientific publications, 3 chapters in international book editions and translations, as well as 32 oral presentations at national and international congresses.
Main research interests: robot-assisted hysterectomy and oncogynecologic surgery, treatment of cervical, uterine, ovarian and vulvar cancer; molecular oncology; rare vulvar tumors (in particular, low-grade fibromyxoid sarcoma); the prognostic significance of the uterocervical angle in pregnancy loss; HPV-related diseases and cervical dysplasia.
Professional courses and training:
- Course on robot-assisted surgery on the Da Vinci system — 2016
- Course of the Turkish Surgical Society on Vascular Surgery, jointly with Istanbul University Faculty of Medicine — 03.06.2017
- Course of the Turkish Surgical Society “Staplers in Surgery: Training and Use” — 28.04.2018
- Course of the Turkish Surgical Society “Management of Difficult Wounds and Modern Practical Approaches in Surgery” — 10.03.2018
- Turkish Society of Gynecologic Oncology (Türk Jinekolojik Onkoloji Derneği, TRSGO)
- Turkish Society of Gynecology and Obstetrics (Türk Jinekoloji ve Obstetri Derneği, TJOD)
- Turkish Society of Gynecologic Endoscopy (Türk Jinekolojik Endoskopi Derneği, TRSGE)
- Turkish Society of Urogynecology (Türk Ürojinekoloji Derneği)
- Turkish Society of Endometriosis and Adenomyosis (Türk Endometriozis ve Adenomyozis Derneği)
- European Society of Gynaecologic Oncology (ESGO)
- European Network of Young Gynaecologic Oncologists (ENYGO)
Memorial Şişli Hospital is the flagship and the oldest hospital of the Memorial Health Group (operating since 2000), and was the first hospital in Turkey and the 21st in the world to receive international JCI accreditation — the gold standard of medical care quality. The hospital occupies 53,000 m² of indoor space and has 252 beds, 13 operating rooms and 4 intensive care units. The oncology profile includes a separate large Center for Oncology and Radiotherapy and a Center for Robot-Assisted Da Vinci Surgery, as well as a specialized Breast Health Center. For patients seeking gynecologic oncology care, this means the opportunity to receive diagnostics, robot-assisted Da Vinci surgery, radiotherapy, chemotherapy and post-operative follow-up within a single JCI-accredited hospital with international service standards.
