Online Consultation with Neurosurgeon Doctors Abroad — Page 4

Dr. Mehmet Tonge is a stereotactic and functional neurosurgeon at Medipol Acibadem District Hospital. He specializes in deep brain stimulation and MR-guided focused ultrasound for movement disorders. Dr. Tonge completed his deep brain stimulation fellowship at Maastricht University in the Netherlands. He treats complex conditions including Parkinson’s disease, spasticity, and chronic pain.

• Authored over 30 international publications and 12 medical book chapters.
• Completed the four-year training cycle of the European Association of Neurosurgical Societies.
• Expert in Gamma Knife radiosurgery and electrode placement for movement disorders.
• Works at a JCI-accredited hospital equipped with the da Vinci robotic system.

Dr. Marcelo Amato is a neurosurgeon and spine surgeon in São Paulo. He focuses on endoscopic and minimally invasive spine surgery. He earned his MD in 2004 and completed neurosurgery residency in 2009 at FMRP‑USP. He holds a PhD in Neurosurgery/Clinical Surgery. He is a specialist in Neurosurgery and Spine Surgery recognized by the Brazilian Neurosurgery and Spine societies and the Brazilian Medical Association. CRM‑SP 116,579; RQE 29,417.

He has worked in endoscopic spine surgery since 2013. His work includes clinical care, teaching, and research. He teaches courses. He is a collaborator at the University Hospital (FMRP‑USP) and is director of Amato Hospital Day. His website reports over 2,100 spine surgeries and over 1,600 pediatric neurosurgeries up to 2021, and over 97% satisfaction in endoscopic cases (Macnab). At the São Paulo Air Force Hospital (2010–2018), he helped rebuild the neurosurgery service and performed more than 250 high‑complexity procedures.

With an extensive career spanning over four decades, the doctor is a distinguished specialist in pediatrics and neonatal neurology. Following residency at Gazi University, the doctor served as an assistant professor and played a pivotal role in establishing the Pediatric Neurology Department. International experience includes clinical work at the Royal Free Hospital and Great Ormond Street Hospital in London.

The doctor is recognized for pioneering hypothermia treatment in Turkey and advancing neonatal neurocritical care. Further contributions include establishing high-risk infant monitoring clinics and founding the Turkish Childhood MS Working Group. The doctor continues to provide significant academic and clinical expertise in neurodevelopmental fields.

Dr. Halit Anil Eray is a neurosurgeon. He specializes in stereotactic and functional neurosurgery and neuromodulation. He is an Associate Clinical Research Scholar in Neurosurgery at the University of Florida (2025–2026) under Prof. Kelly D. Foote. His work there includes movement disorder and Tourette DBS clinics, operating room cases, and research. He is also a Consultant Neurosurgeon at Ardahan State Hospital since December 2024. His training includes a residency at Ankara University and a 2022 DBS/SCS fellowship at International Medicana Hospital.

His focus includes DBS workflows, target planning, advanced neuroimaging, movement disorders, and neuropsychiatric surgery. He has 15 peer-reviewed papers and 13 indexed abstracts. In 2026, he was first author on studies on transaxis odontoidectomy morphometrics and sinonasal teratocarcinoma. He has presented at WSSFN, ESSFN, and EANS. He was an invited speaker at the 39th Turkish Neurosurgical Society Congress in 2026.

Dr. Cevdet Gokcek is a neurosurgeon at Medipol University Pendik Hospital in Istanbul. He specializes in brain, spine, and pediatric nerve conditions. He has treated thousands of patients for complex disorders. Dr. Gokcek is a member of the Turkish Neurosurgical Society. He previously completed a microsurgery course at Hacettepe University.

• Achieved a 95% success rate for severe brain and spine surgeries.
• Performs transnasal pituitary tumor removals and endoscopic skull base procedures.
• Authored 17 articles published in national and international medical journals.
• Completed a neuro-endoscopy workshop at Ghent University in Belgium.

The doctor has conducted significant research on the cumulative effective dose of radiation from chest CT scans in COVID-19 patients. This work highlights the importance of adhering to guidelines to minimize unnecessary exposure, reflecting a commitment to patient safety and evidence-based practice.

Dr. Ahmet Oktem is a neonatologist at Medipol Acibadem District Hospital in Istanbul. He specializes in the intensive care of premature infants and neonatal infections. Dr. Oktem focuses on treating respiratory issues and metabolic disorders like hypoglycemia. He holds a doctorate from Ankara University and completed specialization at Hacettepe University.

• Manages complex cases of congenital anomalies and birth-related infections.
• Expert in prenatal screening and postnatal interventions for newborns.
• Treats pediatric conditions including hydrocephalus and spina bifida.
• Practices at a JCI-accredited facility using robotic surgical systems.

Dr. Murat Duzgun is a neurosurgeon at Can Hospitals Turkey in İzmir. He specializes in spine surgery and endoscopic brain tumor removal. Dr. Duzgun uses neuronavigation for high-precision brain surgery. He performs fully closed procedures for herniated discs and spinal fractures.

• Performs kyphoplasty and vertebroplasty for spinal fracture treatment.
• Treats scoliosis, ankylosing spondylitis, and nerve compression.
• Expert in minimally invasive pain interventions like radiofrequency and laser.
• Treats pediatric neurosurgery cases including hydrocephalus and congenital anomalies.