A patient-centered, multidisciplinary approach to neurosurgery.
Assoc. Prof. Oğuz Baran directs the diagnosis, treatment and follow-up of brain tumors, cerebrovascular disease, epilepsy surgery, disorders of the spine and spinal cord, and peripheral nerve conditions in accordance with current scientific practice.
Koç University Hospital — Neurosurgery
The right treatment for the right patient.
A graduate of Hacettepe University Faculty of Medicine, Assoc. Prof. Oğuz Baran completed his residency in neurosurgery in 2018. He trained in surgical neuroanatomy at the University of Florida under Prof. Albert L. Rhoton, and in neuro-oncology, awake tumor surgery and functional brain mapping at the University of Montpellier under Prof. Hugues Duffau. In 2022 he completed his training in neuroendoscopic surgery at the Pituitary Research Center of Kocaeli University under Prof. Savaş Ceylan. He was awarded the title of Associate Professor in the same year and has practiced at Koç University Hospital since September 2020. In his approach to patients he gives precedence to accurate indication, safe surgery and individualized treatment options directed at preserving and improving quality of life.
Most frequently asked about
Diagnosis and treatment are individualized for each patient, assessed together with the clinical history, the findings of the neurological examination and the imaging studies.
Brain Tumors
Diagnosis and treatment of primary and metastatic brain tumors.
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Cerebral Aneurysm
Diagnosis, the decision to observe, and surgical or endovascular treatment.
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Epilepsy Surgery
Surgical treatment options for patients with drug-resistant epilepsy.
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Hydrocephalus
An overview of hydrocephalus, its forms, diagnosis and treatment.
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Lumbar Disc Herniation
Conservative and surgical treatment of lumbar disc herniation.
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Spinal Stenosis
Narrowing of the spinal canal: symptoms, diagnosis and treatment.
Further information →Informative articles for patients
What Is a Pituitary Adenoma? Does Every Pituitary Adenoma Require Surgery? How Is Endoscopic Surgery Performed?
What is a pituitary adenoma? Which pituitary tumors require surgery? Information on endoscopic pituitary surgery, drug treatment and follow-up options.
October 4, 2026 Brain SurgeryThe Hidden Cause of Forgetfulness and Walking Difficulty: Normal Pressure Hydrocephalus (NPH)
What is normal pressure hydrocephalus (NPH)? The symptoms, diagnosis and treatment of NPH, which can present with walking difficulty, forgetfulness and urinary problems.
September 25, 2026 Functional NeurosurgeryFacial Pain That Strikes Like Lightning: Trigeminal Neuralgia
Not every pain of the face, jaw or teeth is trigeminal neuralgia. The features that distinguish it, what vascular compression on MRI signifies, and when surgery comes into consideration.
September 13, 2026 Cerebrovascular DisordersDoes a Brain Aneurysm Give Warning Before It Bleeds?
Most aneurysms remain silent for years. Which headache calls for urgent assessment, and does every aneurysm that is found require treatment?
August 25, 2026 Spine SurgeryCan a Disc Herniation Recur After Surgery?
The rate of recurrence after surgery is approximately 13%. Who is at greater risk, and does returning pain always mean the herniation has recurred?
August 18, 2026 Brain SurgeryWhat Are the Symptoms of a Brain Tumor? I Have a Headache — Should I Be Worried?
Headache is very common and does not by itself indicate a brain tumor. Which headaches warrant closer assessment, and is an MRI needed for every headache?
August 11, 2026 Spine SurgeryIs Every Case of Back Pain a Slipped Disc?
Roughly 90% of back pain does not arise from a disc herniation. What does it mean when a herniation is seen on MRI, and which findings call for urgent assessment?
August 4, 2026 Epilepsy SurgeryEpilepsy Surgery: Who Is a Candidate, and How Successful Is It?
What should be done when seizures continue despite two appropriate drug treatments? Surgical assessment, selection of candidates and the published success rates in drug-resistant epilepsy.
July 28, 2026Patients' accounts of their treatment may be read, in their verified form, on the DoktorTakvimi profile.
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Koç University Hospital, Davutpaşa Caddesi No:4, Topkapı, 34010 Zeytinburnu / İstanbul
Location
Koç University Hospital, Davutpaşa Caddesi No:4, Topkapı, 34010 Zeytinburnu / İstanbul
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