Page 48 - Treatment in Istanbul (Turkey)

Dr. Ibrahim Ziyal is a neurosurgeon at Memorial Göztepe Hospital in Istanbul (2025–present). He was Professor and Head of Neurosurgery at Marmara University (2012–2025). Earlier, he held faculty roles at Hacettepe University (2001–2012). He was the Founding Head of Neurosurgery at Abant İzzet Baysal University, Düzce (1999–2001). He also worked as a clinical researcher in brain tumors at George Washington University (1996–1998). He then focused on cerebrovascular diseases at the São Paulo Institute of Neurological Sciences (1998–1999).

Expertise: skull base tumors, pituitary surgery, and aneurysm/AVM/cavernoma surgery. Neurosurgery training: Şişli Etfal Hospital. MD: Trakya University. Memberships: Turkish Neurosurgical Society, Neuro-Oncology Association, AANS, CNS, WFNS, EANS.

Dr. Mustafa Sakar is a neurosurgery specialist at Memorial Göztepe Hospital in Istanbul (2025–present). He previously worked at Marmara University Pendik Training and Research Hospital (2013–2025) and Kahramanmaraş Elbistan State Hospital (2011–2012).

He earned his MD at Hacettepe University Faculty of Medicine in Ankara (1997–2003). He completed his neurosurgery residency there (2004–2010).

Professional memberships: Turkish Neurosurgical Society; Turkish Neurosurgical Society Pediatric Neurosurgery Education and Training Group; EANS; ISPN; Turkish Medical Association.

Training and congresses attended: Corner Tumor Surgery observership at the University of Tübingen, Germany; Fetal Spina Bifida Surgery observership at HCor, São Paulo, Brazil. He also attended scientific meetings of TNS, ESPN, ISPN, and CNS.

Dr. Eldaniz Mammadli is a Neurosurgery Specialist at Memorial Göztepe Hospital in Istanbul (2025–present). He completed a neurosurgery residency at Marmara University (2019–2025). He earned his MD from Atatürk University (2013–2019).

He is a member of EANS and the Congress of Neurological Surgeons (CNS). He completed observerships with Prof. Hugues Duffau in Montpellier (2023) and Prof. Michael Lawton at the Barrow Neurological Institute (2024).

He attended WSSFN 2022 and EANS Vascular 2024. He trained at the Yasargil Microneurosurgery Academy in 2024 and 2025. He joined the MGB Neurosurgery Spine Symposium in 2025. He also attended the Turkish Neurosurgical Society Congresses (2020–2023) and skull base and spine cadaver courses in Istanbul (2022–2023).

Dr. Haluk Cokugras is a pediatric specialist at Memorial Göztepe Hospital (2025–present). He previously served in the Department of Pediatrics at Istanbul University, Cerrahpaşa Faculty of Medicine (1983–2024).

He earned his MD from Istanbul University, Cerrahpaşa Faculty of Medicine (1975–1981). He later completed specialization in pediatrics (1988), pediatric allergy (1998–2001), and pediatric infectious diseases (2004).

Professional memberships: Turkish Pediatric Association; Pediatric Allergy, Immunology and Asthma Association; Pediatric Infectious Diseases Association; Balkan Pediatric Society; European Academy of Allergy and Clinical Immunology. He has attended Turkish Pediatrics, Pediatric Allergy, Pediatric Infectious Diseases, and Pediatric Pulmonology congresses.

Op. Dr. Yunus Çınar is a specialist in plastic, reconstructive, and aesthetic surgery. He completed his residency in 2023. He graduated from Istanbul University Cerrahpaşa Faculty of Medicine in 2016. He served as a resident in public hospitals in Konya and Ankara. He now practices aesthetic surgery with the team at Quartz Clinique.

He trained as an observer at Villa Bella Clinic in Italy under Prof. Giovanni Botti. He has taken part in many scientific congresses and courses on rhinoplasty, facial aesthetics, breast surgery, wound care, and burn management. He has also given oral presentations at national and international meetings.

Dr. Koray Karabulut is a general surgery specialist at Memorial Göztepe Hospital (2025–). His focus is HPB surgery, liver transplantation, and robotic or minimally invasive surgery. He was the responsible specialist at the Fırat University Liver Transplant Center (2014–2018). He then worked as an organ transplantation specialist at Memorial Şişli (2018–2019). In 2024, he worked in robotic HPB surgery at Ageo Medical Center.

Training highlights include minimally invasive HPB at IRCAD (2015). He completed a research fellowship at the Cleveland Clinic on liver tumors and laparoscopic‑robotic surgery (2010–2011). He also completed liver transplant training at the İnönü University Institute (2011–2012). He earned his MD and finished his general surgery residency at Istanbul University. He became an associate professor in 2013. His academic work includes peer‑reviewed papers in J Gastrointest Surg, Surgery, and Surg Endosc. He has written surgical book chapters. He is a guideline author for the Turkish Surgical Society and served on editorial boards (2011–2016).

Dr. Ferhat Yakup Suceken is a Urology Specialist at Memorial Göztepe Hospital in Istanbul (2025–present). He previously held the same role at Ümraniye Training and Research Hospital (2017–2025), Tekirdağ Saray State Hospital (2015–2017), and Ceylanpınar State Hospital (2013–2015).

He completed his urology residency at the University of Health Sciences, Ümraniye Training and Research Hospital, Department of Urology (2007–2013). He earned his MD from Kocaeli University Faculty of Medicine (2001–2007).

Professional memberships include the Turkish Urological Association and the Urological Surgery Association.

Professional training: Laparoscopy Course on Pig Model; Robotic Surgery Course; Penile Prosthesis Surgery Course; PCNL Live Surgery Course; Flexible URS Course.

Dr. Fatih Yildiz is an Orthopedics and Traumatology Specialist at Memorial Göztepe Hospital, Istanbul (2025–present). He previously worked at Bezmialem Foundation University, Faculty of Medicine (2013–2025). He also worked at Kızıltepe State Hospital, Mardin (2012–2013). He completed his Orthopedics and Traumatology residency at Istanbul University, Istanbul Faculty of Medicine (2006–2012). He earned his MD from the same faculty (1999–2005).

Professional memberships: TOTBİD (Turkish Orthopedics and Traumatology Association), TOTDER (Turkish Society of Orthopedics and Traumatology), and TOTEK (Turkish Orthopedics and Traumatology Education Council).

Dr. Ali Ersen is a specialist in orthopedics and traumatology at Memorial Göztepe Hospital in Istanbul (2025–present). He held the same role at Istanbul University Faculty of Medicine (2012–2025). Before that, he completed compulsory service at Kızıltepe State Hospital (2011–2012).

He completed a residency in orthopedics and traumatology at Istanbul University Faculty of Medicine (2005–2011). He earned his MD from Trakya University Faculty of Medicine (1999–2005).

Professional memberships: European Society for Surgery of the Shoulder and Elbow (SECEC) and the Turkish Society of Shoulder and Elbow Surgery (T-ODCD).

Dr. Ali Cemal is a Professor of Otorhinolaryngology and an ENT specialist at Memorial Göztepe Hospital. He has held this role since 2025. He served on the Marmara University ENT faculty from 2014 to 2025. Earlier, he worked as a specialist at Ümraniye and Pendik Training and Research Hospitals. He was a Clinical Fellow at Ohio State University – The James Cancer Research Center from 2015 to 2016.

Education: MD and ENT residency at Marmara University. Accreditations/memberships: European and Turkish Boards of Otorhinolaryngology (since 2015). AAO-HNSF (since 2015). Turkish Society of Otorhinolaryngology and Head & Neck Surgery. Istanbul Medical Chamber. Istanbul ENT and Head-Neck Surgery Specialists Association. Robotic Surgery Association. Turkish Facial Plastic Surgery Association. Head and Neck Surgery Association. Training: Robotic surgery (2015) and microsurgery (2018).

Dr. Suleyman Guray is a gastroenterology specialist at Memorial Göztepe Hospital in Istanbul (2025–present). He previously worked at Medicana Izmir International Hospital (2025) and Izmir Katip Çelebi University Ataturk Training and Research Hospital (2018–2025).

He earned his MD from Ege University (1996–2002). He completed his specialization in Internal Medicine at Bozyaka Training and Research Hospital (2004–2009). He is a member of the Turkish Society of Gastroenterology and the Gastrointestinal Endoscopy Society.

His advanced endoscopy training includes CHA Bundang Medical Center. He also attended the Manchester Advanced Endoscopy Symposium and the International Congress of Gastroenterology Research, Endoscopy, and Training Society.

Dr. Ulvi Gulmammadov is a Check-Up Physician at Memorial Göztepe Hospital (2025–present). He graduated from the Istanbul University Faculty of Medicine (2001–2008). He is a member of the Turkish Medical Association.

He works in preventive and hospital medicine. He spent 6 years in check-up and occupational practice at Acıbadem Atakent Hospital (2014–2020). He served as Medical Director at Focusmed Health Tourism for 5 years (2020–2025). He worked as a Ward Physician at Taksim German Hospital for 2 years (2012–2014). He also worked 4 years in Emergency Medicine at Emsey Medical Center and Bezmialem Vakıf Gureba Hospital (2008–2012). He has professional training in Occupational Medicine.

Dr. Ali Riza Cenk Celebi is a Professor of Ophthalmology at Acibadem University (2023–2025). He practices at Acibadem Maslak Hospital (2024–2025). He completed a glaucoma fellowship at Harvard/Mass Eye and Ear in 2016. His clinical work covers glaucoma (MIGS, seton procedures), cornea (limbal stem cell surgery), lacrimal surgery (scarless endoscopic DCR), medical retina (intravitreal injections), myopia control in children, and orbital surgery.

He earned his MD from Hacettepe University and ranked 3rd in his class. He began his ophthalmology residency after placing 11th in Turkey’s TUS exam. Certifications include ICO Basic and Clinical (2010), FEBO (2015), Turkish Board (2016), Advanced ICO/FICO (2017), and USMLE Step 4. His awards include Acibadem Academic Achievement (2015–2023), Best Presentation (2022), and TOD awards (2022–2023). He has published 58 international articles and 15 books. He holds an MSc in Biological Data Science (GPA 3.94/4.00, top of term) and completed training in AI in Healthcare in 2020.

Dr. Bugra Bilge Keseroglu specializes in robotic and laparoscopic urology. His robotic work includes radical prostatectomy (conventional and Retzius-sparing), radical cystectomy, sacrocolpopexy, and Burch colposuspension. His laparoscopic work includes radical prostatectomy with lymph node dissection, radical cystectomy, sacrocolpopexy, and Burch colposuspension. He also performs laparoscopic nephrectomy and partial nephrectomy, pyeloplasty, all endourological surgeries (stone surgery and endoscopic procedures), HOLEP, and female incontinence surgery.

Education: Uludağ University Faculty of Medicine, 1990–1996. Specialization: S.B. Ankara Training and Research Hospital, 1997–2002. Experience: Yozgat State Hospital, 2002–2006 and 2012–2016; Yozgat Private Hospital, 2006–2011; S.B. Ankara Training and Research Hospital, 2016–2019; Bilkent City Hospital, 2019–2024.

Dr. Halil Can is a Professor of Neurosurgery (2025; Associate Professor 2020). He completed neurosurgical training at Istanbul University–Istanbul Faculty of Medicine in 2007. His clinical focus includes endoscopic and microsurgical spine surgery for fractures, tumors, and degenerative disease; advanced pain procedures; endoscopic skull base and pituitary surgery; and neurovascular, neuro-oncologic, and peripheral nerve surgery.

He has 21 international peer-reviewed papers (SCI/SSCI). Topics include cadaveric morphometry of Kambin’s triangle and the transforaminal triangular working zone, lumbar arterial and anterior approach anatomy, and an in vitro test of a new lumbar fixation device.

His clinical studies include a single-team series of 81 posterior circulation aneurysms, with 13 flow-diversion cases. He also reported five spinal cavernous malformation cases. He conducted Phase I safety and feasibility stem-cell trials in pediatric hypoxic-ischemic encephalopathy and in chronic complete spinal cord injury.

Dr. Yasar Cokkeser is an ENT specialist. He graduated from Istanbul University Faculty of Medicine (1983–1989). He completed his ENT residency at Ankara Numune Hospital (1989–1994). He held a Clinical Research Fellowship in Otology and Skull Base Surgery at Gruppo Otologico, Italy (1993–1994). He also completed observerships at GWU Neurosurgery, House Ear Institute, USC, Johns Hopkins, and the University of Pennsylvania.

He served at Inönü University as Assistant Professor (1994–1999) and Associate Professor (1999–2005). He was Chief of Clinic at Ümraniye Training and Research Hospital (2005–2007). His recent practice includes Medicana Ataköy (2024–2025).

He has more than 75 publications indexed in Index Medicus. His articles appear in Otolaryngol Head Neck Surg, Am J Otol, J Laryngol Otol, and Ann Otol Rhinol Laryngol. His work covers revision stapes surgery, skull base approaches, vestibular schwannoma, and DCR outcomes in 115 patients (130 eyes).

Dr. Ozge Utku Aydemir is a specialist in plastic, reconstructive, and aesthetic surgery. Dr. Aydemir completed residency training at Ankara Bilkent City Hospital (2019–2023). Dr. Aydemir then served as a specialist doctor at Ankara Ataturk Sanatorium Training and Research Hospital (2023–2025). Dr. Aydemir earned an MD from Gazi University (English Program).

EBOPRAS (European Board of Plastic, Reconstructive and Aesthetic Surgery) Part 1 certified on 25 Jan 2025. Interests include facial and breast aesthetics, body contouring, microsurgery and hand surgery, reconstructive surgery, injectables (fillers, Botox), and lasers.

Publications include a 2023 article in The Journal of Hand Surgery on outcomes of wide-awake flexor tendon repairs in 58 fingers and 9 thumbs. Dr. Aydemir also completed a thesis on amniotic membrane use in flexor tendon repair. Presentations include oral and poster sessions at TPRECD and an international congress. Member of TPRECD, Aesthetic Plastic Surgery Society, and Aesthetic Surgery Society.

Dr. Cagdas Erdogan is a gastroenterologist at Ankara Etlik City Hospital. He trained in Internal Medicine and Gastroenterology. He earned his MD from Dokuz Eylul University. He completed his Internal Medicine residency from 2014 to 2019. He then completed a Gastroenterology fellowship at Ankara City Hospital from 2019 to 2022. His clinical focus includes advanced endoscopy (ERCP, EUS, EMR, ESD, POEM, EGD, colonoscopy, double-balloon enteroscopy), inflammatory bowel disease, and hepatology.

He has about 40 publications. His work appears in The Turkish Journal of Gastroenterology, Scientific Reports, Endoscopy, and Digestive Diseases and Sciences. Notable studies address vedolizumab in IBD and prophylaxis for post-ERCP pancreatitis. He also reported a 13-year Crohn’s cohort comparing infliximab and adalimumab. Additional work covers outcomes with an adalimumab biosimilar and innovative endoscopic therapies (MCA via double-balloon enteroscopy, holmium laser for Bouveret syndrome, POEM for Zenker’s diverticulum, and ESD for esophageal papillomatosis).

Dr. Murat Cakar is an Assistant Professor of Pediatric Surgery. His focus includes neonatal thoracic and abdominal diseases, esophageal atresia replacement, diaphragmatic hernia, pediatric cancer surgery (Wilms tumor, neuroblastoma), and testicular surgical conditions.

He earned his MD from Cumhuriyet University (1998–2005). He completed pediatric surgery training (2006–2011). He worked as a pediatric surgeon (2011–2013). He has served as Head of Pediatric Surgery at Karabük University, İstinye University/Liv Hospital (since 2020), and Aydın University (since 2021).

His roles include Founding Manager of Karabük University Hospital, Head of Laboratory Operations, and Chair of Child Advocacy Centers. He has also served on Medicines and Medical Supplies Commissions. He is a member of the Turkish Association of Pediatric Surgeons and the Pediatric Urology Association.

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.