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Assoc. Prof. Dr.

Mehmet Hakan Şahin

Neurosurgery (Brain and Nerve Surgery)

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2019 – 2024 Atatürk University Faculty of Medicine, Department of Neurosurgery, Assistant Professor.

2011 – 2017 Atatürk University Faculty of Medicine, Department of Neurosurgery

2004 – 2010 Atatürk University Faculty of Medicine

 

Courses and Conferences Attended

  1. International Basic Neurosurgery Course / Neuro-Oncology 15-19 March 2013, Antalya, Turkey
  2. International Basic Neurosurgery Course/ Spinal and Peripheral Nerve Surgery 14-18 March 2014, Antalya, Turkey
  3. International Basic Neurosurgery Course / Neurovascular Surgery 14-17 April 2015, Antalya, Turkey
  4. International Basic Neurosurgery Course/ Neurotrauma and Functional Neurosurgery 5-8 April 2016, Antalya, Turkey
  5. Full Term Attendance of International Basic Neurosurgery Course 8 March 2016, Antalya, Turkey
  6. 31st Scientific Congress of the Turkish Neurosurgery Association, March 29 – April 2, 2017, Antalya, Turkey
  7. 3rd Acıbadem Gamma Knife Symposium, March 31, 2017, Istanbul, Turkey
  8. 3rd Istanbul Pituitary Symposium, 23-24 Febuary 2018, Istanbul, Turkey
  9. Bahçeşehir University Hands-On Microneurosurgery, 4-6 October 2018, Istanbul, Turkey
  10. International Basic Neurosurgery / Tricks in microneurosurgery 05 May 2021, Istanbul, Turkey
  11. 34th Scientific Congress of the Turkish Neurosurgery Association, September 30 – October 3, 2021, İzmir, Turkey
  12. Turkish Academy of Neurosurgery Academic Writing Training Course 07-08 September 2022, Sivas, Turkey
  13. Turkish Academy of Neurosurgery Conference 08-11 September 2022, Sivas, Turkey
  14. Spinal Deformity Correction Maneuvers Course, September 2-3, 2022, Malatya, Turkey
  15. Spinal Deformity Correction Maneuvers Course, May 21, 2022, Eskişehir, Turkey
  16. Turkish Neurosurgery Association 35th Scientific Congress, November 24-27, 2022, Antalya, Turkey
  17. Turkish Neurosurgery Association 36th Scientific Congress, April 27-30, 2023, Antalya, Turkey
  18. 3rd International Rhoton Society Meeting 22-24 August 2023, Istanbul, Turkey
  19. Future of Microneurosurgery Meeting 25 August 2023, Istanbul, Turkey
  20. Semi-Sitting Position in Neurosurgery Meeting 26 August 2023, Istanbul, Turkey
  21. 37th Scientific Congress of the Turkish Neurosurgery Association, April 18-21, 2024, Antalya, Turkey
  22. Speaker at the “Supratotal Resection in Glioma Surgery” Panel at the 37th Scientific Congress of the Turkish Neurosurgical Association 19 April 2024
  23. Turkish Neurosurgical Society Prof. Dr. Hamit Ziya Gökalp Young Neurosurgeon Incentive Award – 2024 – Second Prize
  24. 1st Congress of Yaşargil Microneurosurgery Academy (June 4–7, 2024, Istanbul, Turkey) 1st Prize
  25. AANS Annual Meeting (25-28 April 2025, Boston, USA) Oral Presentation
  26. Arkansas Neuroscience Institute Neurosurgery Course (9-13 March 2025, Arkansas, USA)
  27. MGB Global Neurosurgery Symposium and 2nd Yasargil Microneurosurgery Congress (23-24 April 2025, Boston, USA)
  28. UW Ventricular Neuro-Endoscopy Course (14 September 2024, Wisconsin, USA)
  29. UW Spine Symposium and Surgical Skills Lab (4-5 April 2025, Wisconsin, USA)
  30. UW Skull Base Course (3-4 May 2025, Wisconsin, USA)
  31. Multidisciplinary Joint Meeting on Pain Treatment (December 5-7, 2025, Ankara, Türkiye)
  32. Multidisciplinary Pain Treatment Cadaver Course (December 7, 2025, Ankara, Türkiye)
  33. Turkish Neurosurgery Association 39th Scientific Congress, April 8-12, 2026, Antalya, Turkey

2026 – Atlas University Hospital

2025 – 2026 Samsun Medicana International Hospital September

2024 – 2025 University of Wisconsin (UW Health)

2020 – 2020 Yeditepe University Faculty of Medicine Department of Neurosurgery

2019 – 2004 Atatürk University Faculty of Medicine

2017 – 2019 Iğdır State Hospital

2011 – 2017 Atatürk University Faculty of Medicine

2010 – 2011 Aşkale District State Hospital

  1. Neuro-Oncological Surgery

Brain tumors

Skull base tumors

Pontocerebellar corner tumors

Pituitary gland tumors

Metastatic brain tumors

Spine and spinal cord tumors

  1. Neurovascular Surgery

Aneurysms

Arteriovenous malformations (AVMs)

Cavernos

Cerebrovascular diseases (vascular diseases of the brain)

Brain hemorrhages

  1. Skull Base and Complex Cranial Surgery

Microvascular decompression

Trigeminal neuralgia

Chiari malformation

Arachnoid cyst surgery

  1. Epilepsy Surgery
  2. Spine Surgery

Cervical, thoracic, and lumbar disc surgery (endoscopic/microsurgery)

Degenerative spinal diseases

Spinal surgery (spondylolisthesis)

Cervical, thoracic, and lumbar spine fractures

Scoliosis

  1. Peripheral Nerve Surgery

Entrapment neuropathies

Carpal tunnel syndrome

Ulnar groove syndrome

Peripheral nerve tumors

  1. Pain Surgery

Trigeminal neuralgia

Microvascular decompression

Radiofrequency Ablation and Nucleoplasty

  1. Hydrocephalus Surgery

VP shunt surgeries

LP shunt surgeries

Hydrocephalus surgeries

  1. Pediatric Neurosurgery and Developmental Anomalies

Meningomyelocele

Tethered cord syndrome

  1. Neurotrauma

Head traumas

Subdural hematomas

Intracerebral hematomas

Turkish Neurosurgery Association (08.12.2017 Member No: 1620)

International Peer-Reviewed Journal Publications

  1. Şahin MH, Güngör A, Demirtaş OK, Postuk HC, Fırat Z, Kadıoğlu HH, Türe U. Microsurgical and fiber tract anatomy of the interthalamic adhesion.  J Neurosurg . 2023. doi:10.3171/2023.3.JNS221669.
  2. Şahin MH, Akyüz ME, Karadağ MK, Yalçın A. Supramarginal gyrus and angular gyrus subcortical connections: A microanatomical and tractographic study for neurosurgeons.  Brain Sci . 2023;13(3):430.
  3. Şahin MH, Akyüz ME, Kadıoğlu HH. The effects of necrostatin-1 on cerebral vasospasm-induced subarachnoid hemorrhage.  Turk Neurosurg . 2022;32(6):923-929.
  4. Şahin MH, Akyüz ME, Karadağ MK, Zeynal M, Aydın MD. Predestinative role of acidic cerebrospinal fluid on the destiny of central channel in spinal cord following subarachnoid hemorrhage: An experimental study.  Cir Cir . 2023;91(5):627-632.
  5. Şahin MH, Temtek U. Enterococcus gallinarum group meningitis after transanal migration of the ventriculoperitoneal shunt: A pediatric case report.  Childs Nerve Syst . 2023;39:1093-1096.
  6. Şahin MH, Zeynal M. New surgical technique for non-missile trauma hemostasis as a result of sewing needle.  Childs Nerve Syst . 2023;39(3):781-785.
  7. Şahin MH, Zeynal M, Karaavcı NÇ, Karadağ MK. Intracranial epidural hematoma after use of a 3-pin head clamp in a pediatric case with posterior fossa tumor and hydrocephalus: A case report.  J Clin Investig Surg. . 2021;6(2):178-182.
  8. Şahin MH, Akyüz ME, Temtek U, Kara M, Tekgündüz KŞ. Intrauterine subdural hematoma associated with blunt maternal trauma: A case report.  Int Neurol J . 2021;17:67-70.
  9. Şahin MH. Changes in the urethral artery after experimental subarachnoid hemorrhage-induced injury of the pudendal ganglion and onuf’s nucleus junction.  Eurasian J Med . 2023;55(3):239-242.
  10. Akyuz ME, Sahin MH, Temtek U, Gok E, Keles A, Bozdag S, Erginoglu U, Kadıoglu HH, Ture U, Baskaya MK. The anatomical and radiologic relationship of the superior longitudinal system with the middle cerebral artery branches. Acta Neurochir (Wien). 2026 Jun 3.
  11. Yaman T, Yayik AM, Karadag MK, Sahin MH, Ahiskalioglu EO, Celik EC, Aydin ME, Ahiskalioglu A, Si̇msek N. Comparison of modified thoracolumbar interfascial plane and anterior quadratus lumborum blocks for postoperative analgesia and recovery after lumbar transpedicular fixation surgery: a prospective randomized clinical study. BMC Musculoskeletal Disord . 2026 May 9.
  12. Kendirlioglu BC, Sulaimanov U, Sahin MH, Korkmaz TS, Keles A, Erginoglu U, Aydogmus E, Greeneway GP, Zaazoue MA, Baskaya MK. Life-size 3D modeling for C1-C2 fixation planning: A preoperative tool for atlantoaxial stabilization techniques. Brain Spine . 2026 May 14;6:106090.
  13. Elveren M, Temtek U, Karaavcı NÇ, Akyüz ME, Zeynal M, Kara CF, Kapakin S, Yalçın A, Kadıoğlu HH, Şahin MH. Retrosigmoid transtentorial approach for accessing the mediobasal temporal region: A radiological and anatomical evaluation.  Neurosurg Rev. 2026;49:96.
  14. Tan SU, Sulaimanov U, Sensoy T, Şahin MH, Korkmaz TS, Sevgi ME, Yekeler B, Keleş A, Erginoğlu U, Başkaya MK. Techniques and outcomes for microsurgical treatment of large and giant cerebral aneurysms in the endovascular era.  Neurosurg Focus . 2025;59(6):E11.
  15. Zeynal M, Akyüz ME, Şahin MH, Alay H, Karadağ MK, Kadıoğlu HH, Kara CF, Elveren M. A rare disease: Single-center experience of cerebral alveolar echinococcosis in 12 operated patients.  Eur Rev Med Pharmacol Sci . 2023;27(1):426-430.
  16. Karadağ MK, Akyüz ME, Şahin MH. The role of ONSD in the assessment of headache associated with Chiari malformation type 1.  Front Neurol . 2023;14:1127279.
  17. Zeynal M, Şahin MH. Subthalamic nucleus degeneration as a dark cause of Parkinson’s disease after subarachnoid hemorrhage: A preliminary experimental study.  J Contemp Med . 2023;13(2):215-220.
  18. Zeynal M, Şahin MH, Kanat A, Karadağ MK, Şipal S, Ergene Ş, Aydın MD. The enigma of basilar artery dissections secondary to vasospasm following subarachnoid hemorrhage.  J Neurol Surg A Cent Eur Neurosurg . 2023. doi:10.1055/a-2104-1520.
  19. Zeynal M, Şahin MH. Predictive role of posterior communicating artery spasm on axonal degeneration in oculomotor nerve root following subarachnoid hemorrhage.  New Trends Med Sci . 2023;4(2):73-82.
  20. Barlak N, Kuşdemir G, Gümüş R, Gündoğdu B, Şahin MH, Tatar A, Ittmann M, Karataş OF. Overexpression of POFUT1 promotes malignant phenotype and mediates perineural invasion in head and neck squamous cell carcinoma.  Cancer Biomark . 2023. doi:10.1002/cbin.12085.
  21. Yolaş C, Kanat A, Zeynal M, Şahin MH, Karadağ MK, Keleş ON, Akça N, Dil E, Aydın MD, Gündoğdu ÖL. Reduced sperm numbers occur by olfactory bulbectomy-related Onuf’s nucleus degeneration.  Neuroendocrinology . 2023;113(10):1051-1058.
  22. Akyüz ME, Karadağ MK, Şahin MH. Effect of modified clivoaxial angle on surgical decision making and treatment outcomes in patients with Chiari malformation type 1.  Front Surg . 2023;10:1143086.
  23. Aydın MD, Kanat A, Şahin B, Şahin MH, Ergene Ş, Demirtaş R. New experimental finding of autonomic ganglia changes in cardiac injury following subarachnoid hemorrhage.  Int J Neurosci . 2022. doi:10.1080/00207454.2022.2086128.
  24. Olğun A, Şahin MH, Zeynal M, Karadağ MK, Demirtaş R, Çağlar Ö, Aydın MD. Hazardous effects of lumbar dorsal root ganglion ischemia on abdominal skin following spinal subarachnoid hemorrhage.  New Trends Med Sci . 2022;3(2):105-110.
  25. Akyüz ME, Şahin MH, Kadıoğlu HH. Evaluation of the effect of asiatic acid on cerebral vasospasm: An experimental study.  Anal Quant Cytopathol Histopathol . 2021;43(6):633-640.
  26. Koçak MN, Malçok ÜA, Şahin MH, Karaavcı NÇ, Çelik M, Demirtaş R, Aydın MD. Burned spinal cord in acidotic cerebrospinal fluid during subarachnoid hemorrhage: Experimental study.  Cir Cir . 2021;89(5):583-587.
  27. Aydın MD, Kanat A, Karaavcı ÇN, Şahin MH, Özmen S. Water-filled vesicles of choroid plexus tumors.  J Craniofac Surg . 2019;30(7):2171-2173.
  28. Aydın MD, Karaavcı NÇ, Akyüz ME, Şahin MH, Zeynal M, Kanat A, Altınörs MN. A new technique in surgical management of giant cerebral hydatid cysts.  J Craniofac Surg . 2018;29(3):778-782.
  29. Şengül G, Karaavcı NÇ, Şahin MH, Zeynal M, Sade R. Extradural hydatid cyst of the posterior cranial fossa.  J Neurol Sci (Turkish) . 2015;32(1):284-287.

Other Publications (National Peer-Reviewed Journals and Book Chapters)

  1. Şahin MH , Gündoğdu S, Erkan F. Intracranial Meningiomas: Diagnosis, Treatment Methods and Management of Complications. In: Türkiye Klinikleri Neurosurgery. 1st ed. Ankara: Türkiye Klinikleri; 2025. p.134-141.
  2. Olğun A, Karadağ MK, Zeynal M,  Şahin MH , Demirtaş R, Turan Ç, Aydın MD. Denervation injury of scalp hair due to trigeminal ganglion ischemia: the first experimental study.  Journal of Health Sciences and Medicine . 2022;5(4):996-1001.
  3. Olğun A, Demirtaş R, Duman A, Karadağ MK,  Şahin MH , Özmen S, Aydın MD. A Magic Relationship Between Trigeminal Network and Carotico-vertebrobasilar Vasculature During Craniofaciocervical Recirculation Following Bilaterally Common Carotid Artery Ligation: Preliminary Study.  Medical Journal of Western Black Sea . 2022;6(1):9-15.
  4. Aydın MD, Karadağ MK,  Şahin MH , Zeynal M, Ahıskalıoğlu A, Keleş ON, Özmen S. Neuro Physical Mechanism of Parkinson Disease Linked with Weak Electromagnetic Field of Subthalamic Nucleus Induced by Decreased Charging Effect of Neurenteric Coil: Preliminary Experimental Study.  Atatürk University Faculty of Medicine Journal of Surgical Medical Sciences . 2022;1(3).
  5. Kanat A,  Şahin MH , Aydın MD, Keleş ON. Exploration of Caudate Nucleus Degeneration following Subarachnoid Hemorrhage: An Experimental Study.  Atatürk University Faculty of Medicine Journal of Surgical Medical Sciences . 2022;1(3).
  6. Karaavcı NÇ, Zeynal M,  Şahin MH , Kadıoğlu HH. Clinical Presentation of Supratentorial Low-Grade Astrocytomas.  Türkiye Klinikleri Neurosurgery – Special Topics . 2017;6(6).
  7. Şahin MH , Karaavcı NÇ, Zeynal M, Kadıoğlu HH. Genetic Alterations in Adult Supratentorial Low-Grade Astrocytomas.  Türkiye Klinikleri Neurosurgery – Special Topics . 2017;6(3).
  8. Zeynal M, Karaavcı NÇ,  Şahin MH , Kadıoğlu HH. Cognitive and Other Higher Neurological Functions in Supratentorial Low-Grade Astrocytomas of Adults.  Türkiye Klinikleri Neurosurgery – Special Topics . 2017;6(3).
  9. Şengül G,  Şahin MH , Karaavcı NÇ, Oğul H. Brain lipomas: 5 case reports and a review of the literature.  Turkish Journal of Neurosurgery . 2015;25(1):79-82.
  10. Şengül G,  Şahin MH , Karaavcı NÇ, Alper F. Clay Shoveler’s fracture following a fall from height.  Journal of Turkish Spinal Surgery . 2015;26(1):57-60.
  11. Şengül G,  Şahin MH . Cerebellar mutism.  Journal of Neurobehavioral Sciences . 2014;1(1):1-2.

 

 Oral Presentations

  1. Bozdağ S, Orgün D, Keleş A, Şahin MH, Akyüz ME, Başkaya MK.
    Living far from specialized centers: Is there a disadvantage in aneurysmal subarachnoid hemorrhage outcomes?
    Brain Spine. 2025;5(Suppl 2).
  2. Akyüz ME, Şahin MH, Kara CF, Elveren M, Zeynal M, Kadıoğlu HH.
    Ventricular tap–parenchymal damage relationship: anatomical and radiological study.
    3rd International Rhoton Society Meeting. 2023.
  3. Şahin MH, Akyüz ME, Elveren M, Kara CF, Karadağ MK, Kadıoğlu HH.
    Retrosigmoid supracerebellar infratentorial approach to mediobasal temporal region anatomy: a cadaver study.
    3rd International Rhoton Society Meeting. 2023.
  4. Karadağ MK, Şahin MH.
    Comparison of transforaminal injection and combined radiofrequency ablation in patients with lumbar disc herniation.
    15th Turkish Spine Congress. 2023.
  5. Olğun A, Şahin MH, Zeynal M, Keleş ON, Aydın MD.
    Peripheral nerve roots degeneration induced by acidic cerebrospinal fluid.
    International Congress of Recent Advances in Medicine. 2022.
  6. Şahin MH, Güngör A, Demirtaş OK, Postuk HC, Fırat Z, Kadıoğlu HH, Türe U.
    Microsurgical and fiber tract anatomy of the interthalamic adhesion.
    1st Congress of Yaşargil Microneurosurgery Academy. 2024.
  7. Chyndolotov T, Temtek U, Şahin MH, Akyüz ME, Kadıoğlu HH.
    Frontothalamic peduncle white matter anatomy: demonstration by fiber dissection.
    1st Congress of Yaşargil Microneurosurgery Academy. 2024.

Book Chapters

  1. Şahin MH. Subarachnoid Hemorrhage and Aneurysms. In: Kadıoğlu HH, ed.  Textbook of Neurosurgery . 1st ed. Erzurum: Atatürk University Publications; 2019. ISBN: 978-625-7086-17-2.
  2. Şahin MH. Intraparankimal Kanama (Intracerebral Hemorrhage). In: Kadıoğlu HH, ed.  Nörosirürji Ders Kitabı (Textbook of Neurosurgery) . 1st ed. Erzurum: Atatürk Üniversitesi Yayınları; 2020. ISBN: 978-625-7086-17-2.
  3. Şahin MH. Vascular Malformations. In: Kadıoğlu HH, ed.  Textbook of Neurosurgery . 1st ed. Erzurum: Atatürk University Publications; 2020. ISBN: 978-625-7086-17-2.
  4. Şahin MH. Spinal Hemorrhages. In: Kadıoğlu HH, ed.  Textbook of Neurosurgery . 1st ed. Erzurum: Atatürk University Publications; 2020. ISBN: 978-625-7086-17-2.
  5. Şahin MH. Fungal and Fungal-Like Infections. In: Kadıoğlu HH, ed.  Infectious Diseases of the Central Nervous System . 1st ed. Erzurum: Atatürk University Publications; 2023. ISBN: 978-625-6983-12-0.

Awards received:

2024 – Turkish Neurosurgery Association “Prof. Dr. Hamit Ziya Gökalp Young Neurosurgeon Incentive Award” Second Place

2024 – First Prize at the “1st Congress of Yaşargil Microneurosurgery Academy” International Competition (June 4-7, 2024)

2023 – Turkish Neurosurgery Qualification Certificate.

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Last Updated:16/06/2026 – baris.kurtulus@atlas.edu.tr

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