Prof. Dr. Gökhan Akdemir

Professor Gökhan Akdemir is a Professor of Neurosurgery at İstinye University Medical Park Gaziosmanpaşa Hospital in Istanbul. His clinical interests include brain tumors, cerebrovascular diseases, trigeminal neuralgia, herniated discs, spinal injuries, and hydrocephalus. He has served as Head of Neurosurgery at Turkish universities and has published research in international peer-reviewed journals.

Education and Specialization

• 1988: Faculty of Medicine, Çukurova University.
• 1996: Specialization in Neurosurgery, Numune Training and Research Hospital.
• 2010: Institute of Health Sciences, Hacettepe University.

Dr. Gökhan Akdemir’s Professional Experience

• 2023: İstinye University Medical Park Gaziosmanpaşa Hospital.
• 2022–2023: Bakırköy Hospital, Acıbadem Healthcare Group.
• 2020–2022: Türkiye Hospital.
• 2019–2020: University of California, San Francisco (UCSF), San Francisco, California, USA.
• 2018–2019: International Hospital, Acıbadem Healthcare Group.
• 2015–2018: Şişli Hospital, Memorial Healthcare Group.
• 2014–2015: University of California, San Francisco (UCSF), San Francisco, California, USA.
• 2013–2013: University of California, San Francisco (UCSF), San Francisco, California, USA.
• 2011–2015: Professor and Head of the Department of Neurosurgery, Faculty of Medicine, Selçuk University.
• 2006–2011: Head of the Department of Neurosurgery, Faculty of Medicine, Mustafa Kemal University.
• 2002–2006: Department of Neurosurgery, Numune Training and Research Hospital.
• 2001–2002: Head of the Department of Neurosurgery, Sadi Konuk Training and Research Hospital.
• 1999–2001: Deputy Head of the Department of Neurosurgery, Numune Training and Research Hospital.
• 1998–1999: Neurosurgeon with the rank of Lieutenant, Diyarbakır Military Hospital.
• 1996–1998: Deputy Head of the Department of Neurosurgery, Numune Training and Research Hospital.

Courses and Certifications

• 2012: Microsurgery, Yeditepe University, Istanbul — Professor Gazi Yaşargil.
• 2002: Skull Base Surgery and Microsurgical Anatomy, University of Florida, Gainesville, Florida, USA — Professor Albert L. Rhoton Jr.
• 1997: Skull Base and Peripheral Nerve Surgery, Nordstadt Hospital, Hannover, Germany — Professor Madjid Samii.
• 1995: Neurovascular and Stereotactic Surgery, University of Illinois Chicago, Chicago, Illinois, USA — Professor James I. Ausman and Professor Manuel Dujovny.
• 1994: Faculty of Medicine, Hacettepe University, Ankara.

Professional Memberships

• 2015: European Skull Base Society.
• 2015: Turkish Skull Base Society.
• 2013: Founding Member of the Turkish Neuro-Oncology Society.
• 2009: Congress of Neurological Surgeons (CNS), USA.
• 1998: Turkish Neurological Society.
• 1997: Turkish Neuroscience Society.
• 1996: Turkish Neurosurgical Society.
• 1988: Turkish Medical Association.

Research and Scientific Publications

1. Application of fluorescent dextrans to the brain surface under constant pressure reveals AQP4-independent solute uptake.
   Authors: Alex J. Smith, Gokhan Akdemir, Meetu Wadhwa, Dan Song, Alan S. Verkman.
   J Gen Physiol. 2021 Aug 2;153(8). doi: 10.1085/jgp.202112898.
2. Neurosurgical and neuro-immunological management of IgG4-related hypertrophic sclerosing pachymeningitis: A literature survey and discussion of a unique index case.
   Authors: Elmaci I, Altinoz MA, Akdemir G, Sari R, Baskan O, Ozpinar A, Hacker E, Sav A.
   Clin Neurol Neurosurg. 2021 Jan;200:106342. doi: 10.1016/j.clineuro.2020.106342.
3. B-cell aplasia and hypogammaglobulinemia associated with levetiracetam.
   Authors: Ozdemir H, Sumer S, Karabagli H, Akdemir G, Caliskaner AZ, Artac H.
   Ann Saudi Med. 2018 Jan-Feb;38(1):65-68. doi: 10.5144/0256-4947.2018.09.01.
4. Temporal changes in aquaporin-4 and aquaporin-1 expression following global cerebral ischemia-induced edema in rats.
   Authors: Akdemir G, Kaymaz F, Gursoy-Özdemir Y, Akalan N, Akdemir ES.
   Surg Neurol Int. 2016 Jan 6;7:4. doi: 10.4103/2152-7806.173316.
5. Neuroprotective effect of aquaporin-4 deficiency in a mouse model of severe global cerebral ischemia induced by transient four-vessel occlusion.
   Authors: Akdemir G, Ratelade J, Asavapanumas N, Verkman AS.
   Neurosci Lett. 2014 Jun 27;574:70-5. doi: 10.1016/j.neulet.2014.03.073.
   Published online on April 6, 2014.
6. Accuracy of fluoroscopy-assisted pedicle screw placement: Analysis of 1,218 screws in 198 patients.
   Authors: Koktekir E, Ceylan D, Tatarli N, Karabagli H, Recber F, Akdemir G.
   Spine J. 2014 Aug 1;14(8):1702-8. doi: 10.1016/j.spinee.2014.03.044.
   Published online on April 4, 2014.
7. Resolution of papilledema following endoscopic third ventriculostomy versus cerebrospinal fluid shunting in patients with hydrocephalus: A comparative study.
   Authors: Koktekir E, Koktekir BE, Karabagli H, Gedik S, Akdemir G.
   J Neurosurg. 2014 Jun;120(6):1465-70. doi: 10.3171/2014.2.JNS132002.
   Published online on March 28, 2014.
8. Fluorodeoxyglucose positron emission tomography/computed tomography findings in a patient with cerebellar mutism after posterior fossa surgery.
   Authors: Gedik GK, Sari O, Köktekir E, Akdemir G.
   Asian J Surg. 2014 Mar 17. pii: S1015-9584(14)00021-9. doi: 10.1016/j.asjsur.2014.01.004.
   Published online ahead of print.
9. Frontal sinus metastasis from lung adenocarcinoma mimicking Pott’s puffy tumor.
   Authors: Koktekir E, Koktekir BE, Recber F, Akdemir G.
   J Craniofac Surg. 2013 Nov;24(6):e538-9. doi: 10.1097SCS.0b013e318285d98a.
10. Marked improvement in survival and neuroprotection in aquaporin-4 knockout mice following global cerebral ischemia.
    Authors: Katada R, Akdemir G, Asavapanumas N, Ratelade J, Zhang H, Verkman AS.
    FASEB J. 2014 Feb;28(2):705-14. doi: 10.1096/fj.13-231274.
    Online publication date as provided in the source: 2013 No1.
11. Obstructive hydrocephalus caused by a giant basilar artery aneurysm.
    Authors: Kaptan H, Koktekir E, Recber F, Akdemir G.
    Neurosciences (Riyadh). 2013 Apr;18(2):173-5.
12. Symptomatic pneumorrhachis.
    Authors: Koktekir E, Tatarli N, Ceylan D, Koktekir BE, Akdemir G.
    J Neural Surg A Cent Eur Neurosurg. 2014 Mar;75(2):140-5. doi: 10.1055/s-0032-1333123.
    Published online on February 20, 2013. Review article.
13. A thyrotropin-secreting pituitary adenoma associated with a clinically silent growth hormone-secreting tumor.
    Authors: Berker D, Isik S, Aydin Y, Tutuncu Y, Akdemir G, Ozcan HN, Guler S.
    Turk Neurosurg. 2011;21(3):403-7. doi: 10.5137/1019-5149.JTN.2642-09.2.
14. Intraforaminal ligaments of the thoracic and lumbar spine.
    Author: Akdemir G.
    J Neurosurg Spine. 2010 Sep;13(3):351-5. doi: 10.3171/2010.3.SPINE09799.
15. Lateral orbitotomy approach to orbital tumors: A report of ten cases.
    Authors: Okay O, Daglioglu E, Akdemir G, Dalgic A, Uckun O, Atasoy S, Belen D.
    Turk Neurosurg. 2010 Apr;20(2):167-72. doi: 10.5137/1019-5149.JTN.2620-09.2.
16. Electrophysiological and clinical assessment of the response to surgery in carpal tunnel syndrome.
    Authors: Yilmaz N, Akdemir G, Gezici AR, Basmaci M, Ergungor MF, Asalanturk Y, Beskonakli E, Ucar D.
    Int J Neurosci. 2010 Apr;120(4):261-4. doi: 10.3109/00207451003615748.
17. Macrocephaly and bilateral temporal arachnoid cysts unrelated to glutaric aciduria type I in a child.
    Authors: Serarslan Y, Melek IM, Sangün O, Akçora B, Akdemir G.
    Turk Neurosurg. 2008 Apr;18(2):172-6.
18. Delayed herniation of the optic chiasm following transsphenoidal resection of a pituitary adenoma: A case report.
    Authors: Ergungor F, Daglioglu E, Akdemir G, Okay O, Dalgic A, Hatipoglu G.
    Neurol Neurochir Pol. 2008 Jan-Feb;42(1):60-3.
19. Coexistence of Chiari I malformation, syringomyelia, and situs inversus totalis.
    Authors: Serarslan Y, Melek IM, Duman T, Eraslan T, Akdemir G, Yalçin F.
    Med Sci Monit. 2007 Sep;13(9):CS110-113.
20. Hydatid cysts of the internal auditory canal and jugular foramen.
    Authors: Akdemir G, Dağlioğlu E, Seçer M, Ergüngör MF.
    J Clin Neurosci. 2007 Apr;14(4):394-6.
    Published online on January 30, 2007.
21. Therapeutic efficacy of intraventricular cyclosporine A and methylprednisolone in a rat model of global cerebral ischemia.
    Authors: Akdemir G, Ergüngör MF, Sezer M, Albayrak L, Dağlioğlu E, Kilinç K.
    Neurol Res. 2005 Dec;27(8):827-34.
22. Manifestations of global cerebral ischemia in a woman following a suicide attempt by hanging.
    Authors: Akdemir G, Ergüngör F.
    Ulus Travma Acil Cerrahi Derg. 2005 Jul;11(3):250-3.
    Publication language: Turkish.
23. Transethmoidal approach to the optic canal: Microsurgical and radiological anatomy.
    Authors: Akdemir G, Tekdemir I, Altin L.
    Surg Neurol. 2004 Sep;62(3):268-74.
    Discussion: p. 274.
24. A dermoid lesion of the cavernous sinus: A case report and review of the literature.
    Authors: Akdemir G, Dağlioğlu E, Ergüngör MF.
    Neurosurg Rev. 2004 Oct;27(4):294-8.
    Published online on April 2, 2004. Review article.
25. Neuroprotective effects of propofol following global cerebral ischemia in rats.
    Authors: Ergün R, Akdemir G, Sen S, Taşçi A, Ergüngör F.
    Neurosurg Rev. 2002 Mar;25(1-2):95-8.
26. Surgical management of syringomyelia associated with Chiari malformation.
    Authors: Ergün R, Akdemir G, Gezici AR, Tezel K, Beskonakli E, Ergüngör F, Taskin Y.
    Eur Spine J. 2000 Dec;9(6):553-7.
27. A neurenteric cyst at the craniocervical junction without associated abnormalities.
    Authors: Ergün R, Akdemir G, Gezici AR, Kara C, Ergüngör F.
    Pediatr Neurosurg. 2000 Feb;32(2):95-9.
28. Craniocerebral erosion: Delayed diagnosis and treatment.
    Authors: Ergün R, Okten AI, Akdemir G, Beskonakli E, Gürsoy F, Taskin Y.
    Neurosurg Rev. 1998;21(4):249-53.
29. The prognostic value of serum neuron-specific enolase levels following head injury.
    Authors: Ergün R, Bostanci U, Akdemir G, Beşkonakli E, Kaptanoğlu E, Gürsoy F, Taşkin Y.
    Neurol Res. 1998 Jul;20(5):418-20.
30. Intraventricular administration of atrial natriuretic peptide for the treatment of acute intracranial hypertension.
    Authors: Akdemir G, Luer MS, Dujovny M, Misra M.
    Neurol Res. 1997 Oct;19(5):515-20.
    Erratum published in: Neurol Res. 1997 Dec;19(6):587.
31. The importance of magnetic resonance imaging in preventing failed back surgery: A case report.
    Authors: Ergün R, Okten AI, Akdemir G, Beskonakli E.
    Acta Radiol. 1997 May;38(3):464-5.
32. Cervical laminar exostosis in a patient with hereditary multiple osteochondromatosis: Anterior stabilization and fusion to prevent instability.
    Authors: Ergün R, Okten AI, Beşkonakli E, Akdemir G, Taşkin Y.
    Eur Spine J. 1997;6(4):267-9.
33. Outcomes of urological manifestations in surgically treated patients with tethered spinal cord.
    Authors: Başar H, Aydoğanli L, Yüksel M, Başar M, Akdemir G, Kaptanoğlu E.
    Int Urol Nephrol. 1997;29(2):167-71.