Best neurosurgeons: TOP 237 doctors

Medical Interests: 

• Brain, cerebellum, spine, and spinal cord tumor surgeries in adults and children 

• Pediatric Neurosurgery Surgeries (Hydrocephalus, Tethered Cord, Diastematomyelia, Encephalocele, Meningocele-Meningomyelocele, Dermal Sinus Tract Excision, Craniosynostosis) 

• Spine Surgery (Lumbar and Cervical Disc Herniation, Spondylolisthesis, Spinal Stenosis, Stabilization for Spinal Fractures, Vertebroplasty-Kyphoplasty Surgeries, Kyphosis Surgery) 

• Deep Brain Stimulation Surgery for Parkinson's Disease, Essential Tremor, and Dystonia 

• Vagal Nerve Stimulation Surgery (Epilepsy Surgery) • Spinal Cord Stimulation Surgery (Spinal Cord Pain Stimulator) 

• Surgeries for Trigeminal Neuralgia and Hemifacial Spasm 

• Baclofen Pump Implantation Surgery (for Severe Spasticity) 

• Surgeries for Aneurysms, AVMs, and Cavernomas 

Medical Specialization Thesis Title and Advisor :  Histopathologic Comparison of Intracerebral Microballoon Dissection Method and Classical Corticotomy in Rat Brain . Ondokuz Mayıs Üniversitesi Tıp Fakültesi Beyin ve Sinir Cerrahisi AD 2006, 

Thesis Advisor:  Assoc. Prof. Dr. Alparslan Senel PhD Thesis Title and Advisor: Deep brain stimulation of the subthalamic nucleus: clinical and scientific aspects. Maastricht University Department of Neuroscience 2016, Thesis Supervisor: Prof. Dr. Yasin Temel  

Asst. Assoc. Dr. OMU Faculty of Medicine, Department of Neurosurgery Guest Lecturer Maastricht University Neuroscience and Neurosurgery Clinics, NETHERLANDS 2009 2011 

Assoc. Dr. OMU Faculty of Medicine, Department of Neurosurgery 2015 

Prof. Dr. OMU Faculty of Medicine, Department of Neurosurgery 2022

Guest Lecturer Atlas University Faculty of Medicine, Istanbul 2021-2024 

Rector of Atlas University 2024 -

Directed specialty theses: 

1.Comparative results of plastic cap and bone cement used for permanent electrode fixation in deep brain stimulation surgeries. Ondokuz Mayıs University Faculty of Medicine, Department of Neurosurgery 2019, Thesis Student: Dr. Önder Taşkın 

2.The effect of deep brain stimulation surgery on the volumes of brain nuclei in Parkinson's patients. Ondokuz Mayıs University Faculty of Medicine, Department of Neurosurgery 2024, Thesis Student: Dr. Muhammet Dirlik 

Administrative Duties :  

Rector of Atlas University (2024, currently)

-Founding Member - Founding Board Member of the International Deep Brain Stimulation Association (20202023), (2023, currently) 

-Functional group committee member of the European Association of Neurosurgery (EANS) (2020, currently) 

-President-Founding Member of the National Deep Brain Stimulation Association (2105-2018), (2018-2021), (2021, Ondokuz Mayıs University Neuromodulation Center Responsible (2018, currently) 

-Turkish Academy of Neurosurgery Board Member (2022, currently)

 -Turkish Neurosurgical Association Stereotactic, Functional, Pain and Epilepsy Surgery Teaching and Education Group Chairman (2019, 2022), 2nd. Chairman (2017-2019), Secretary (2013- 2015 / 2015 - 2017) 

- Board Member of Neuromodulation Research and Education Association (Secretary, 2020, 2022), (Secretary, 2018-2020) 

-Ondokuz Mayıs University Continuing Education Center Board Membership (2012-2015/ 2015-2018) 

-Ondokuz Mayıs University Black Sea Advanced Technology Application and Research Center (KİTAM) Board Membership (2016-2017)

 -Turkish Neurosurgical Association Professional Personnel Rights Board Membership (2013-Present) 

Other duties: -Deep brain stimulation training, consultancy and supervision (2014-present) 

Universities, hospitals and institutions consulted 

1. Hacettepe University Faculty of Medicine 

2. Akdeniz University Faculty of Medicine 

3. Uludağ University Faculty of Medicine 

4. Atlas University Faculty of Medicine Medicine Medicine Hospital 

5. Baku National Oncology Hospital, Azerbaijan

 6. Erciyes University Faculty of Medicine

 7. Fırat University Faculty of Medicine

 8. Health Sciences University Tepecik Training and Research Hospital, Izmir

 9. Health Sciences University City Hospital, Ankara 

10. Adana Başkent University Hospital 

11. Medtronic Inc 

12. Boston Scientific 

13. Dokuz Eylül University Faculty of Medicine 

Bilimsel Kuruluşlara Üyelikler :  

1. Türk Nöroşirürji Derneği 

2. Türk Nöroşirürji Derneği Stereotaktik, Fonksiyonel, Ağrı ve Epilepsi Cerrahisi     Öğretim ve Eğitim Grubu 

3. Uluslararası Derin Beyin Stimülasyonu Derneği 

4. National Deep Brain Stimulation Society 

5. Turkish Neurosurgical Society Neurooncological Surgery Teaching and Training Group 

6. European Society for Stereotactic and Functional Neurosurgery (ESSFN) 

7. International Parkinson and Movement Disorder Society (MDS)

8. Mediterranean Neuroscience Society (MNS) 

9. World Society for Stereotactic and Functional Neurosurgery (WSSFN) 

10. International Neuromodulation Society (INS)

11. Neuromodulation Research and Education Association 

Undergraduate and graduate level courses given in the last 2 years 

- Neuromodulation (D-5) 

- Stereotactic surgical methods in neurological diseases (D-5) 

- Surgical treatment of movement disorders - Bedside practice (D-5) 

- Head traumas (D-5) 

- Head traumas (D-3) 

- Medicine and Poetry (D-1) * For D-5, 9 internship groups are taught in one academic year. 

Summary of academic activity (January 2024) 

A. International articles: 46 

B. International proceedings: 44 

C1. National book editorship: 2 

C2. International book chapter: 2 

C3. National book chapter: 13 

D. National articles: 12 

E. National proceedings: 45 

F. Organized meetings: 18 (7 international, 11 national) 

G. Invited talks: 71 (13 international, 58 national) 

h index: 12 (Web of science), 12 (Scopus), 16 (Scholar) 

Number of citations: 332 (Web of science), 342 (Scopus), 595 (Scholar) 

A. Articles published in international refereed journals : 

1. Eser P, Kocabicak E, Bekar A, Temel Y. Insights into neuroinflammatory mechanisms of deep brain stimulation in Parkinson's disease. Exp Neurol. 2024 Jan 8:114684. 

2. Eser P, Kocabicak E, Bekar A, Temel Y. Interplay between neuroinflammatory pathways and Parkinson's disease.Exp Neurol. 2024 Feb;372:114644.  

3. Yasar OC, Ozturk S, Kemal O, Kocabicak E. Effects of Subthalamic Nucleus Deep Brain Stimulation Surgery on the Formant Frequencies of Turkish Vowels and Vowels. Turk Neurosurg. 2022;32(5):764-772. 

4. Taşkın O, Kocabıcak E, Öztürk S, Yıldız O, Temel Y. Electrode Fixation with Bone Cement or Stimloc® in Deep Brain Stimulation Surgery: A Comparative Study. Turk Neurosurg. 2022;32(3):449-458. 

5. Nassehi B, Assadnejad T, Yildiz O, Aygun D, Kocabicak E. Subthalamic Nucleus Deep Brain Stimulation in a Patient with Parkinson's Disease with Severe Axial Symptoms and Suboptimal Levodopa Response. Turk Neurosurg. 2022;32(3)

6. Nassehi B, Kocabicak E, Temel Y, Hescham S. Alteration of Neurogenesis and Pathologic Markers in Alzheimer's Disease After Deep Brain Stimulation. Turk Neurosurg. 2022;32(4)

7. Habets JGV, Herff C, Fasano AA, Beudel M, Kocabicak E, Schnitzler A, Snineh MA, Kalia SK, Ramirez-Gómez C, Hodaie M, Munhoz RP, Rouleau E, Yildiz O, Linetsky E, Schuurman R, Hartmann CJ, Lozano AM, De Bie RMA, Temel Y, Janssen MLF. Multicenter Validation of Individual Preoperative Motor Outcome Prediction for Deep Brain Stimulation in Parkinson's Disease. Stereotact Funct Neurosurg. November 2021, 25: 1-9. 

8. Öztürk S, Temel Y, Aygün D, Kocabıçak E. Deep Brain Stimulation of Globus Pallidus Internus for Secondary Dystonia: Clinical Cases and Systematic Review of the Literature on the Efficacy of Globus Pallidus Internus and Subthalamic Nucleus. World Neurosurg. 2021 Oct

9. Kocabicak E, Yildiz O, Aygun D, Temel Y. Effects of Deep Brain Stimulation of the Subthalamic Nucleus on Postoperative Levodopa Response: One Year Follow-up. Turk Neurosurg. 2021;31(1)

10. Kaya MO, Ozturk S, Ercan I, Gonen M, Erol FS, Kocabicak E. Statistical Shape Analysis of the Subthalamic Nucleus in Patients with Parkinson's Disease. World Neurosurgery. World Neurosurg. 2019 

11. Kocabicak E, Alptekin O, Aygun D, Yildiz O, Temel Y. Microelectrode recording for deep brain stimulation of the subthalamic nucleus in patients with advanced Parkinson's disease: advantage or waste of time? Turk Neurosurg. 2019;29

12. Aygun D, Dere U A, Yildiz O, Temel Y, Kocabicak E. Characterizing the effect of intraoperative microelectrode recording-induced microlesion on motor symptoms in patients with Parkinson's disease undergoing deep brain stimulation of the subthalamic nucleus. Turk Neurosurg. 2019;29

13. Wetzelaer P, Bouwens VAN DER Vlis T, Tönge M, Ackermans L, Kubben P, Evers S, Kocabicak E, Temel Y. Management of equipment-related infections after DBS surgery: A cost analysis. Turk Neurosurg. 2018;28

14. Alptekin O, Kocabicak E, Gubler FS, Ackermans L, Kubben PL, Temel Y. Perioperative Technical Complications in Deep Brain Stimulation Operations. Turk Neurosurg. 2018;28

15. Aygun D, Kocabicak E, Yildiz MO, Temel Y. The Effect of Age and Disease Duration on Levodopa Response in Patients with Advanced Parkinson's Disease for Deep Brain Stimulation of the Subthalamic Nucleus. 

16. Akpinar C K, Aygun D, Kocabicak E, Onar M K. Dopamine dysregulation syndrome after subthalamic nucleus deep brain stimulation: A case report. Noro Psychiatr Ars. 2015 Dec

17. Tonge M, Kocabicak E, Ackermans L, Kuijf, M, Temel Y. Final electrode position in subthalamic nucleus deep brain stimulation surgery: comparison of indirect and direct targeting methods. Turk Neurosurg. 

18. Tonge M, Ackermans L, Kocabicak E, van Kranen-Mastenbroek V, Kuijf M, Oosterloo M, Kubben P, Temel Y. A detailed analysis of intracerebral hemorrhages in DBS operations. Clin Neurol Neurosurg. 2015 Dec

19. Kocabicak E, Alptekin O, Ackermans L, Kubben P, Kuijf M, Kurt E, Esselink R, Temel Y. Is there still a need for microelectrode recording because the subthalamic nucleus is well visualized by high field MR imaging? Front Integr Neurosci.(Accepted July 15, 2015) 

20. Yarar E, Kuruoglu E, Kocabıcak E, Altun A, Genc E, Ozyurek H, Kefeli M, Marangoz AH, Aydin K, Cokluk C. Electrophysiological and histopathological effects of mesenchymal stem cells in the treatment of experimental rat sciatic nerve injury model. Int J Clin Exp Med. 2015 Jun 15

21. Kocabicak E, Jahanshahi A, Schonfeld L, Hescham SA, Temel Y, Tan S. Deep brain stimulation of the rat subthalamic nucleus caused inhibition of median raphe serotonergic and dopaminergic neurotransmission. Turk Neurosurg 2015

22. Kocabicak E, Temel Y, Höllig A, Falkenburger B, Tan SKh. Current perspectives on deep brain stimulation for severe neurological and psychiatric disorders. Neur. Pschy. Disease and treatment 2015 

23. Lim LW, Janssen ML, Kocabicak E, Temel Y. Antidepressant activity by stimulation of the ventromedial prefrontal cortex and nucleus accumbens is associated with neural activation in the subthalamic nucleus of rats. Behav Brain Res. 2015 

24. Kocabicak E, Terzi M, Akpinar K, Paksoy K, Cebeci I, Iyigun O. Restless Leg Syndrome and Its Quality in Lumbar Radiculopathy Patients. Behavioural Neurology 2014

25. Kocabicak E, Aygun D, Ozaydin I, Jahanshahi A, Onar M, Tan S K, Boke O, Kurt M, Guz H, Terzi M, Alptekin O, Temel Y Is the probe eye subthalamic nucleus length on T2W MRI consistent with microelectrode recording in patients undergoing deep brain stimulation for advanced Parkinson's disease? Turk Neurosurg. 2013;23(5)

26. Duran L, Balci K, Kati C, Akdemir H U, Kocabicak E, Dogruel C. Does admission blood pressure have prognostic value in patients with subarachnoid hemorrhage: an emergency department experience. J Clin Hypertens (Greenwich). 2013 Oct;15(10)

27. Kocabicak E, Temel Y. Deep brain stimulation of the subthalamic nucleus in Parkinson's disease; Surgical technique, tips, tricks and complications. Clin Neurol Neurosurg. 2013 Nov;115(11)

28. Camlidag I, Kocabicak E, Sahin B, Jahanshahi A, Incesu L, Aygun D, Yildiz O, Temel Y, Belet U. Volumetric analysis of subthalamic and red nuclei based on magnetic resonance imaging in patients with Parkinson's disease. Int J Neurosci. 2014 Apr;124(4)

29. Jahanshahi A, Schonfeld L, Janssen ML, Hescham S, Kocabicak E, Steinbusch HW, van Overbeeke JJ, Temel Y. Electrical stimulation of the motor cortex increases progenitor cell migration in adult rat brain. Exp Brain Res. 2013 Nov;231(2)

30. Kocabicak E, Aygun D, Alptekin O, Guz H, Kurt M, Sarihasan B, Temel Y Conversion of local anesthetic-guided deep brain stimulation of the subthalamic nucleus to general anesthesia. J Neurol Surg A Cent Eur Neurosurg 2013, Sep;74(5):332-4.  

31. Jahanshahi A, Vlamings R, van Roon-Mom WM, Faull RL, Waldvogel HJ, Janssen ML, Yakkioui Y, Zeef DH, Kocabicak E, Steinbusch HW, Temel Y. Changes in brainstem serotonergic and dopaminergic cell populations in experimental and clinical Huntington's disease. 

32. Aydin K, Kocabicak E, Altun A, Ozaydin I, Yarar E, Cokluk C. Use of Topical Landmarks in Percutaneous Projection of Intracranial Tumors in Neurosurgical Oncology. Turk Neurosurg. 2012;22(3)

33. Aydın K, Çokluk C, Pişkin A, Kocabıcak E. Ultrasonographic control of transverse carpal ligament incision with limited single skin incision during carpal tunnel surgery. Turk Neurosurg. 2007 Jul;17(3)

34. Alptekin O, Gubler F, Ackermans L, Kubben P, Kuijf M, Kocabicak E, Temel Y. Stereotactic Accuracy and Frame Mounting: a phantom study. Surg Neurol Int. 2019 Apr 24;10:67. 

35. Gubler FS, Ackermans L, Kubben PL, Damci A, Kuijf ML, Oosterloo M, Vermeulen RJ, Hescham S, Kocabicak E, Kurt E, Temel Y. Infections in deep brain stimulation: Shaving versus not shaving. Surg Neurol Int. 2017 Oct 10;8:249. 

36. Dere U Akin, Tonge M, Temel Y, Kocabicak E. Unusual length of the AC-PC line and the importance of direct targeting. OAJJN. 2016;1(4)

37. Aygun D, Kocabicak E, Yildiz O, Onar MK, Guz H, Boke O, Kurt M, Temel Y. Syncope associated with subthalamic nucleus deep brain stimulation in a patient with Parkinson's disease. Case Rep Neurol Med. 2013 

38. Kocabicak E, Terzi M, Alptekin O, Temel Y. Targeting thalamic tremor cells in deep brain stimulation for multiple sclerosis-induced complex tremor. Surg Neurol Int. 2013. 

39. Kocabicak E, Tan SK, Temel Y. Deep brain stimulation of the subthalamic nucleus in Parkinson's disease: Why is it so successful? Surg Neurol Int. 2012;3(Suppl 4)

40. Kocabicak E. Tan SK, Temel Y. Aydın K, Kocabicak E, Çokluk C, Kuruoğlu E, Yıldız L, Marangoz A.H. Cerebral Intraparenchymal Epidermoid Tumor: A Case Report.Chirurgia 2012 October

41. Aydın K, Çokluk C, Kocabıcak E, Çelik B, Taşlak Şengül A. Cervical Screw Extrusion into the Trachea and Perforation: A Case Report. Chirurgia 2012 Oct

42. Cervical Ependymoma: A Case Report and Review of the Literature. Kocabicak E, Cengiz Çokluk,Kerameddin Aydın,Yaşar Bayri,Yurdanur Süllü Journal of Experimental and Clinical Medicine 2010.27; 

43. Nonanastomotic Indirect Bypass Surgery in Surgical Treatment of Malignant Glial Tumors. Cengiz Çokluk,Kerameddin Aydın, Kocabicak E. Journal of Experimental and Clinical Medicine 2010. 

44. On-Off Malignancy in a Pediatric Shunt. Cengiz Çokluk,Kerameddin Aydın, Kocabicak E. Journal of Experimental and Clinical Medicine 2009. 

45. Vibration Producing Dissector in Dissection and Separation of High Grade Glial Tumors from Brain Tissue. Cengiz Çokluk,Kerameddin Aydın, Kocabicak E. Journal of Experimental and Clinical Medicine 2009. 

46. Geriatric Traumatic Acute Subdural Haematomas: A Retrospective Study. Kocabicak E, Ercan Yarar,Cengiz Çokluk,Kerameddin Aydın. Journal of Experimental and Clinical Medicine 2009. 

B. Abstracts presented at international meetings 

1. Kaya Mehmet Onur, Ozturk Sait, Erol Fatih Serhat, Gönen Murat, Ercan Ilker, Kocabicak Ersoy. Statistical Shape Analysis of Subthalamic Nucleus in Patients with Parkinson’s Disease. OP 01, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’, 17-19 October 2019. Anemon Hotel, Samsun, Turkey 

2. Ozgenc Aysun, Taskin Onder, Yildiz Mustafa Onur, Aygün Dursun, Kocabicak Ersoy. Parkinson’s Disease and Neuromodulation Nursing. OP 02, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’, 17-19 October 2019. Anemon Hotel, Samsun, Turkey 

3. Yasar Ozlem, Kemal Ozgur, Kocabicak Ersoy. Effects of Deep Brain Stimulation of the Subthalamic Nucleus on Acoustic Characteristics of Voice Production:Preliminary Results. OP 03, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’17-19 October 2019. Anemon Hotel, Samsun, Turkey 

4. Nassehi Behrad, Kocabicak Ersoy. The Alteration of Neurogenesis and Pathological Markers in Alzheimer's Disease after Deep Brain Stimulation. OP 04, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’17-19 October 2019. Anemon Hotel, Samsun, Turkey 

5. Sücüllü Karadag Yesim, Divanlioglu Denizhan, Öztekin Zeynep Nese, Belen Ahmet Deniz, Kocabicak Ersoy. Medical and Device-Guided Therapies and Deep BrainStimulation in Parkinson's Disease: Experience of a Tertiary Center from Turkey. OP 05, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’17-19 October 2019. Anemon Hotel, Samsun, Turkey 

6. Pilan Kubra, taskin Onder, Yildiz Mustafa Onur, Ozgenc Aysun, Kocabicak Ersoy. Effect of Subthalamic Nucleus Deep Brain Stimulation on Nutritional Status and Habits in Parkinson's Patients. OP 06, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’17-19 October 2019. Anemon Hotel, Samsun, Turkey 

7. Assadnejad Taha, Nassehi Behrad, Aygun Dursun, Yildiz Mustafa Onur, Kocabicak Ersoy. Unilateral Globus Pallidus Interna Deep BrainStimulation in Post Stroke Dystonic Tremor: Case Report. OP 09, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’17-19 October 2019. Anemon Hotel, Samsun, Turkey 

8. Ozturk Sait, Gönen Murat, Erol Fatih Serhat, Kocabicak Ersoy. When Internal Pulse Generator Should Be Activated Following Deep Brain Stimulation in Parkinson's Disease? OP 10, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’17-19 October 2019. Anemon Hotel, Samsun, Turkey

9. Yildiz Mustafa Onur, Taskin Onder, Aygun Dursun, Kocabicak Ersoy. Long-Term Outcomes of Deep Brain Stimulation in Parkinson's Disease: Single Center Experience. OP 13, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’17-19 October 2019. Anemon Hotel, Samsun, Turkey 

10. Ulutabanca Halil, Gultekin Murat, Kocabicak Ersoy. Follow-Up Effect of Deep Brain Stimulation of the Thalamic Ventralis Intermedius Nucleus in a Patient with Bipolar Disorder and Essential Tremor. OP 15, 4th clinical neuroscience course. ‘Current state and future in deep brain stimulation in Parkinson’s disease’17-19 October 2019. Anemon Hotel, Samsun, Turkey 

11. Assadnejad Taha, Nassehi Behrad, Yildiz Mustafa Onur, Aygun Dursun, Kocabicak Ersoy. Subthalamic Nucleus Deep Brain Stimulation in aPatient with Severe Axial Symptoms and Minimal Levodopa Responsive Parkinson's Disease. OP 16, 4th clinical neuroscience course. 'Current state and future in deep brain stimulation in Parkinson's disease'17-19 October 2019. Anemon Hotel, Samsun, Turkey 

12. Ozturk S, Aygun D, ​​Temel Y, Kocabicak E. Deep brain stimulation of the globus pallidus interna with microelectrode recording for secondary dystonia: clinical reports and review of the literature. XXXIIIrd of the ESSFN, Edinburgh, Scotland 2018

13. Alptekin O, Gubler F, Kocabicak E, Ackermans L, Kubben P, Temel Y. Impact of Radiological Image Slice Thickness on Stereotactic Accuracy: a phantom study. XXXIIIrd of the ESSFN, Edinburgh, Scotland 2018 

14. Gultekin M, Ulutabanca H,Selcuklu A, Mirza M, Temel Y, Kocabicak E. Deep brain stimulation of the globus pallidus interna with microelectrode recording for MyoclonusDystonia (DYT- 11): One year Outcome in Two Patients. 70th AAN Annual meeting, Los Angeles USA 2018, P5-055 

15. Kocabicak E, Yildiz M O, Aygun D, ​​Temel Y. The clinical effects of preoperative levodopa response for deep brain stimulation of the subthalamic nucleus for patients with Parkinson's disease in the postoperative period 3rd clinical neuroscience course, Turkey 2017, OP-14 

16. Sen S, Terzi M, Yildiz M O, Temel Y, Kocabicak E. Deep brain stimulation for Multiple Sclerosis related tremor: clinical reports. 3rd clinical neuroscience course, Turkey 2017, OP-16 

17. Gönen M, Ozturk S, Balgetir F, Aytac E, Kocabicak E. Pseudobulbar Laughter Induced by Stimulation of Subthalamic Nucleus: Case Report. 3rd clinical neuroscience course, Turkey 2017, OP-03 

18. Ozturk S, Gonen M, Korkmaz S, Erol F S, Kocabicak E. Early-term results of deep brain stimulation in patients with Parkinson's Disease: Elazığ Experience. 3rd clinical neuroscience course, Turkey 2017, OP-05

19. Turgut E, Ozkaynak S, Kocabicak E, Baysal O G, Temel Y, Ucar T. The Early Results of STN DBS in Parkinson's Disease: Akdeniz University Experience. 3rd clinical neuroscience course, Turkey 2017, OP-08 

20. Turgut E, Parlak H, Agar A, Sarikcioglu L, Ucar T, Kocabicak E, Temel Y. The Effects of Deep Brain Stimulation of the Substantia Nigra Pars Reticulata in 6-OHDA Parkinsonism Model in Rats. 3rd clinical neuroscience course 3rd clinical neuroscience course, Turkey 2017, OP13 

21. Dere U A, Tonge M, Temel Y, Kocabicak E.Unusual Length of the Ac-Pc Line and the Importance of Direct Targeting. 3rd clinical neuroscience course 3rd clinical neuroscience course, Turkey 2017, PP-06 

22. Taskin O, Aygun D,Temel Y, Kocabicak E. Comparative results of plastic cap and bone cement usage in permanent electrode fixation of deep brain stimulation. WFNS XVI. World Congress of Neurosurgery Istanbul-Turkey, 20-25 August, 2017-OP 

23. Ulutabanca H, Gultekin M, Kucuk A, Ciftci M, Selcuklu A, Temel Y, Kocabicak E Confirmation of Electrode Localization by Fusion Between Preoperative T2W MRI and Postoperative CT Scan on Parkinson Cases Who Underwent STN DBS. WFNS XVI. World Congress of neurosurgery Istanbul-turkey, 20-25 August, 2017 –OP 

24. Tonge M, Lindhout J, Kocabicak E, Dere U A, Temel Y. Effect of frontal angle of approach on microelectrode recording and clinical parameters in STN-DBS surgery . XVII. WSSFN Congress, Berlin, Germany 2017, #10653 PP-031 

25. Kocabicak E, Aygun D, ​​Yildiz O, Temel Y. Characterizing the micro lesion effect due to intraoperative microelectrode recording on motor symptoms in patients with Parkinson's Disease undergoing deep brain stimulation of the subthalamic nucleus. XXII congress of the ESSFN, Madrid, Spain 2016 

26. Kocabicak E, Aygun D, ​​Yildiz M O, Alptekin O, Temel Y (2016). Deep brain stimulation of the globus pallidus internus in patients with chorea dominant Huntington's Disease. XXII congress of the ESSFN, Madrid, Spain 2016 

27. Alptekin O, Kocabicak E, Temel Y (2016). Perioperative technical complications in deep brain stimulation surgeries. XXII congress of the ESSFN, Madrid, Spain 2016 

28. Yildiz O, Terzi M, Tugcu B, Alptekin O, Temel Y, Kocabicak E. Deep brain stimulation for Multiple Sclerosis related tremor clinical reports. II. International Conference on Deep Brain Stimulation Düsseldorf, Germany 2016 EP-35 

29. Kocabicak E, Aygun D, ​​Yildiz M O, Taskin O, Alptekin O, Temel Y (2016). Effects of Deep Brain Stimulation of the globus pallidus interna on Huntington's Disease at 1 year. II. International Conference on Deep Brain Stimulation Düsseldorf, Germany 2016 EP-34 

30. Kocabicak E, Ali Jahanshahi, Lisa Schonfeld, Sarah-Anna Hescham, Yasin Temel, Sonny K.H Tan. Deep brain stimulation of the rat subthalamic nucleus induced inhibition of median raphe serotonergic and dopaminergic neurotransmission. XXI Congress of the European Society for Stereotactic and Functional Neurosurgery (ESSFN), Final Programme, page: 7, Flash Oral Presentation no: 20 September 17-21, 2014, Maastricht, Netherlands.

31. Kocabicak E, Dursun Aygun, Kemal Paksoy, Musa Onar, Hatice Guz, Omer Boke, Murat Kurt, Murat Terzi, Onur Alptekin, Onur Yildiz, Yasin Temel. Microelectrode recording in subthalamic nucleus deep brain stimulation: advantage or loss of time? XXI Congress of the European Society for Stereotactic and Functional Neurosurgery (ESSFN), Final Programme, page: 4, Oral Presentation no: 18 September 17-21, 2014, Maastricht, Netherlands. 

32. Camlidag I, Kocabicak E, Sahin B, Jahanshahi A, Incesu L, Aygun D, ​​Yildiz O, Temel Y, Belet U. Volumetric analysis of the subthalamic and red nuclei based on magnetic resonance imaging in patients with Parkinson's disease. XXI Congress of the European Society for Stereotactic and Functional Neurosurgery (ESSFN), Final Programme, page: 22, Poster Presentation no: 17 September 17-21, 2014, Maastricht, Netherlands. 

33. Kocabicak E, Dursun Aygun, Murat Terzi, Musa Onar, Hatice Guz, Omer Boke, Yasin Temel. Deep brain stimulation in complex tremor. XXI Congress of the European Society for Stereotactic and Functional Neurosurgery (ESSFN), Final Programme, page: 5, Flash Oral Presentation no: 19 September 17-21, 2014, Maastricht, Netherlands. 

34. Kocabicak E, Musa Onar, Murat Terzi. Effect on postural stability of REM sleep behavioral disorder in Parkinson's disease. Dursun Aygun, 18th International Congress of Parkinson's Disease and Movement Disorders. Volume: 29 Pages: S226-S226 Supplement: 1 Meeting Abstract: 613. June 08-12, 2014, Stockholm, SWEDEN 

35. D. Aygun, Kocabicak E, M.K. Onar, K. Akpinar, H. Guz, O. Boke, M. Kurt. Patient selection for DBS in Parkinson's disease: Clinical experience with 33 consecutive patients. XX World Congress on Parkinson's Disease and Related Disorders. E-352, page:97, 8 -11 December 2013 Geneva, Switzerland. 

36. D. Aygun, Kocabicak E, M.K. Onar, K. Akpinar, H. Guz, O. Boke, M. Kurt. Effect of disease duration on preoperative levodopa responsiveness as a criterion for subthalamic nucleus deep brain stimulation in Parkinson's disease patients. The Movement Disorder Society's 17th International Congress of Parkinson's Disease and Movement Disorders. Vol. 28, Suppl 1,pp. S1–S464.No:1255. June 16-20, 2013 Sydney- Australia 

37. M.K. Onar, D. Aygun, Kocabicak E, H. Guz, C.K. Akpinar, O. Boke, M. Kurt. Stimulationrelated side effects in ten patients with Parkinson's disease treated by subtahalamic deep brain stimulation (DBS) The Movement Disorder Society's 17th International Congress of Parkinson's Disease and Movement Disorders. Vol. 28, Suppl 1, pp. S1–S464.No:1275 June 16-20, 2013 Sydney- Australia 

38. M.K. Onar, D. Aygun, K. Akpinar, Kocabicak E, O. Boke, H. Guz, M. Kurt. Dopamine dysregulation syndrome after deep brain stimulation (DBS): A case report. The Movement Disorder Society's 17th International Congress of Parkinson's Disease and Movement Disorders. Vol. 28, Suppl 1, pp. S1–S464.No:1276, June 16-20, 2013 Sydney- Australia 

39. Kocabicak E, Aygun D, ​​Ozaydin I, Jahanshahi A, Onar M, Boke O, Kurt M, Guz H, Terzi M, Alptekin O, Yildiz O,Temel Y. Does probe's eye subthalamic nucleus length on T2W MRI correspond with microelectrode recording in patients with deep brain stimulation for advanced Parkinson's disease? 15th World Congress of Neurosurgery (WFNS), Program Book, FA1935, page: 312, September 8-13, 2013, Seoul, Korea

40. Kocabicak E, Dursun Aygun, Hatice Guz, Murat Kurt, Binnur Sarıhasan, Yasin Temel. Conversion of local anesthesia guided deep brain stimulation of the subthalamic nucleus to general anesthesia. XX Congress of the European Society for Stereotactic and Functional Neurosurgery (ESSFN), P 80, page: 142 September 26-29, 2012, Lisbon, Portugal. 

41. Kocabicak E, Murat Terzi, Yasin Temel. Targeting thalamic tremor cells in deep brain stimulation for Multiple Sclerosis induced complex tremor. XX Congress of the European Society for Stereotactic and Functional Neurosurgery (ESSFN), P 81, page: 142 September 26-29, 2012, Lisbon, Portugal. 

42. Kocabicak E, Lee Wei Lim, Harry W.M. Steinbusch, Yasin Temel. Deep brain stimulation of the ventromedial prefrontal cortex induced neuronal changes in the dorsal raphe nucleus of rats. EANS 2011 14th European Congress of Neurosurgery program book, page: 107, October 9-11, 2011 Rome-Italy 

43. Kocabicak E, Cokluk C, Aydin K. Geriatric Epidural Haematoma: Case Report and Review of The Literature. 15th Euroacadimia MultidisciplinariaNeurotraumatologica Congress (EMN) Final Program, P-07 page:20, May 6-9, 2010, Antalya, Turkey 

And More

Education and Expertise

• EGE UNIVERSITY FACULTY OF MEDICINE

Diseases

• Lumbar and Cervical Disc Herniation Microsurgery
• Brain Tumors
• Hydrocephalus
• Pituitary Adenoma Surgery
• Spinal Cord and Spine Surgery
• Peripheral Nerve Surgery
• Trigeminal Neuralgia
• Vascular Surgery

Experience

• 2000 – Ege University Faculty of Medicine, Department of Brain and Nerve Surgery – Specialization

Professional Memberships

• Turkish Neurosurgery Association

PROFESSIONAL EXPERIENCE

2019-present: Department of Neurosurgery, Florence Nightingale Hospitals affiliated to Demiroglu Bilim University Medical Faculty, Istanbul/Turkey. Associate Professor

2017-2019: Department of Neurosurgery, Liv Hospital Ulus affiliated to Istinye University Medical Faculty, Istanbul/Turkey. Associate Professor

2016-2017: Department of Neurosurgery, Liv Hospital Ulus affiliated to Istinye University Medical Faculty, Istanbul/Turkey. Assistant Professor

2015-present: Department of Neurosurgery, Liv Hospital Ulus, Istanbul/Turkey. Attending Neurosurgeon

2013-2015: Department of Neurosurgery, GOP Taksim Training and Research Hospital, Istanbul/Turkey. Attending Neurosurgeon

2006-2012: Department of Neurosurgery, Istanbul School of Medicine, Istanbul University, Istanbul/Turkey. Resident

EDUCATION 

October 2017-March 2018: Clinical Fellowship on Stereotactic and Functional Neurosurgery, Department of Neurosurgery, Hannover Medical School, Hannover/Germany (Professor Joachim K. Krauss M.D, Ph.D)

January-April 2010: Clinical Fellowship on Microsurgery of Peripheral Nerves and Brachial Plexus, Division of Peripheral Nerve Reconstruction, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv/Israel (Professor Shimon Rochkind M.D, Ph.D)

2006-2012: Resident at Department of Neurosurgery, Istanbul School of Medicine, Istanbul University, Istanbul/Turkey

2005-2006: Resident at Department of Anatomy, Cerrahpasa School of Medicine, Istanbul University, Istanbul/Turkey

1999-2005: Istanbul School of Medicine, Istanbul University, Istanbul/Turkey GPA: 3.17/4.00

1991-1999: Istanbul Erkek Lisesi (High School), Istanbul/Turkey GPA: 4.47 / 5.00

Education and Specialization

1998 - Undergraduate (Medicine): Istanbul University Faculty of Medicine

2004 - Master’s Degree: Istanbul University Faculty of Medicine

2005 - 2011 - PhD (Urology): Taksim Training and Research Hospital

2020 - Associate Professor: Yeni Yüzyıl University

Experience

2011 to 2013 - Urology Specialist: Kastamonu Dr. Münif Islamoğlu State Hospital

2013 to 2014 - Urology Specialist: Izmir Private Marine Hospital

2014 to 2014 - Urology Specialist: Istanbul Murat Kölük State Hospital

2014 to 2016 - Urology Specialist: Gaziosmanpaşa Taksim Training and Research Hospital

2016 to 2020 - Faculty Member: Yeni Yüzyıl University Gaziosmanpaşa Hospital

2020 - Associate Professor: Yeni Yüzyıl University Gaziosmanpaşa Hospital

Articles Published in International Refereed Journals: A1

1)NUHOĞLU BARIŞ, BALCI MUSTAFA BAHADIR CAN, AYDIN MEMDUH, HAZAR İSMET, ONUK ÖZKAN, TAŞ TUNCAY, FİKRİ ONUR (2011). The Role of Bipolar Transurethral Vaporization in the Management of Benign Prostatic Hyperplasia. Urologia Internationalis.

2)BALCI MUSTAFA BAHADIR CAN, TAŞ TUNCAY, HAZAR İSMET, AYDIN MEMDUH, ONUK ÖZKAN, ÇAKIROĞLU BASRİ, INTELLECTUAL HONOR, ÖZKAN ARİF, NUHOĞLU BARIŞ (2014). Applicability and Effectiveness of Virtual Reality Simulator Training in Urologic Surgery: A Double-Blind Randomized Study. NOBEL MEDIUS.

3)ONUK ÖZKAN, TAŞ TUNCAY, ŞENTÜRK AB, ORHUN SINANOĞLU, BALCI MUSTAFA BAHADIR CAN, ÇELİK O, NUHOĞLU BARIŞ (2014). Right-Sided Bochdalek Hernia with Intrathoracic Ectopic Kidney in an Advanced-Age Adult: A Case Report. Urologia Internationalis.

4)ONUK ÖZKAN, BALCI MUSTAFA BAHADIR CAN, HAZAR İSMET, TAŞ TUNCAY, ÖZKAN ARİF, NUHOĞLU BARIŞ (2015). Giant Bladder Stone in a Young Woman. Journal of Academic Research in Medicine.

5)DİNÇER MUHAMMET MURAT, ONUK ÖZKAN (2015). Phalloplasty and Penile Prosthesis Implantation for Micropenis. Journal of Academic Research in Medicine

6)ONUK ÖZKAN, ARSLAN BURAK, HAZAR İSMET, ÖZKAN ARİF, ÇİLESİZ NUSRET CAN, NUHOĞLU BARIŞ (2016). Clinical Course of a Case with Sarcomatoid Renal Cell Carcinoma. International Journal of Medical and Pharmaceutical Research.

7)BALCI MUSTAFA BAHADIR CAN, ONUK ÖZKAN, HAZAR İSMET, ÖZKAN ARİF, ÇİLESİZ NUSRET CAN, ARSLAN BURAK, NUHOĞLU BARIŞ (2016). Incidental Prostate Cancer Frequency and Features of Patients Undergoing Radical Cystoprostatectomy. Journal of Academic Research in Medicine.

8)HİRİK ERKAN, BOZKURT ALİSEYDİ, KARABAKAN MEHMET, ONUK ÖZKAN, BALCI MUSTAFA BAHADIR CAN, AYDIN MEMDUH, ÇAKAN MURAT, NUHOĞLU BARIŞ (2016). Results of Tadalafil Treatment in Patients Following an Open Nerve-Sparing Radical Prostatectomy. Archivio Italiano di Urologia e Andrologia.

9)ARSLAN BURAK, AKBULUT MEHMET, ONUK ÖZKAN, HAZAR İSMET, ÖZKAN ARİF, GEZMİŞ CEM TUĞRUL, ÇETİN BUĞRA, AYDIN MEMDUH (2016). Risk Factors Affecting the Outcomes of Docetaxel-Prednisone Combination in the Treatment of Metastatic Castration-Resistant Prostate Cancer. British Journal of Medicine and Medical Research.

10)ONUK ÖZKAN, ARSLAN BURAK, YANARAL FATİH, HAZAR İSMET, ÖZKAN ARİF, GEZMİŞ TUĞRUL, NUHOĞLU BARIŞ (2016). Management of Gunshot Injury of Glans Penis that Extends to Anterior Urethra: A Rare Case Report. Haseki Medical Bulletin.

11)ARSLAN BURAK, AKBULUT MEHMET FATİH, ONUK ÖZKAN, KÜÇÜKTOPCU ONUR, ÇİLESİZ NUSRET CAN, ÖZKAN ARİF, YAZICI GÖKHAN (2017). A Comparison of Amplatz Dilators and Metal Dilators for Tract Dilatation in Mini-Minute Nephrolithotomy. International Urology and Nephrology.

12)ARSLAN BURAK, ONUK ÖZKAN, EROĞLU ALİ, GEZMİŞ TUĞRUL, AYDIN MEMDUH (2017). Female Sexual Function Follows a Novel Transobturator Sling Procedure without Paraurethral Dissection (Modified-TOT). International Braz J Urol.

13)ARSLAN BURAK, ONUK ÖZKAN, HAZAR İSMET, AYDIN MUAMMER, ÇİLESİZ NUSRET CAN, EROĞLU ALİ, NUHOĞLU BARIŞ (2017). Prognostic Value of Endocan in Prostate Cancer: Clinicopathologic Association Between Serum Endocan Levels and Biochemical Recurrence after Radical Prostatectomy. Tumori Journal.

14)ONUK ÖZKAN, ÇİSELİS NUSRET CAN, HAZAR İSMET, GÖZMÜŞ TUĞRUL, ÖZCANLI YUSUF TURUSHAN, DİNÇER MUHAMMET MURAT, NUHOĞLU BARIŞ (2016). Treatment of Giant Ureteral Fibroepithelial Polyp: A Case Report Using an Endoscopic Approach. Journal of Academic Research in Medicine.

15)YANARAL FATİH, BALCI MUSTAFA BAHADIR CAN, OZGÖR FARUK, ŞİMŞEK ABDULMUTALİP, ONUK ÖZKAN, AYDIN MUAMMER, NUHOĞLU BARIŞ (2017). Comparison of Conventional Dressings and Vacuum-Assisted Closure in the Wound Therapy of Fournier's Gangrene. Archivio Italiano di Urologia e Andrologia.

16)ONUK ÖZKAN (2018). A Minimally Invasive Modified Technique for Female Stress Urinary Incontinence: Transobturator Tape without Paraurethral Dissection. Videosurgery and Other Miniinvasive Techniques.

17)HAZAR İSMET, ONUK ÖZKAN, ÖZKAN ARİF, KIR GÜLAY, ÇİLESİZ NUSRET CAN, BALCI MUSTAFA BAHADIR CAN, NUHOĞLU BARIŞ (2018). Treatment of Primary Vesicovaginal Fistula Repair with Bladder Mucosal Flap: A Report of Initial Case Series. Journal of Academic Research in Medicine.

18)ONUK ÖZKAN, ARSLAN BURAK, GEZMİŞ TUĞRUL, ÇETİN BUĞRA, GÖV TAHA, YAZICI GÖKHAN, GÜRKAN OKAN, ÖZDEMİR ENVER (2018). Is the Plasma Endocan Level a Reliable Predictor for the Severity of Erectile Dysfunction?. International Urology and Nephrology.

19)ÖZKAN ARİF, ÇİLESİZ NUSRET CAN, KALKANLI ARİF, GÜNSEVEN KADIR ÖMÜR, ONUK ÖZKAN, HAZAR İSMET, BALCI MUSTAFA BAHADIR CAN (2018). Comparison of Local Anesthetic Efficacy of Lidocaine Gel and Lidocaine Gel-Intramuscular Diclofenac Combination in Patients Undergoing Flexible Cystoscopy. Journal of Academic Research in Medicine.

20)ARSLAN BURAK, GÖNÜLTAŞ SERKAN, GÖKMEN ERSİN, ÖZMAN OKTAY, ONUK ÖZKAN, YAZICI GÖKHAN, GÖV TAHA, ÖZDEMİR ENVER (2019). Does YouTube Include High-Quality Resources for Training on Laparoscopic and Robotic Radical Prostatectomy?. World Journal of Urology.

21)ONUK ÖZKAN, NUHOĞLU BARIŞ, ÖZKAN ARİF, TAŞ TUNCAY, ÇİLESİZ NUSRET CAN, HAZAR İSMET, BALCI MUSTAFA BAHADIR CAN (2019). Comparison of Caveolin-1 and PSA in Prostate Adenocarcinoma. Journal of Academic Research in Medicine.

22)ONUK ÖZKAN, ÖZKAN ARİF, ÇİLESİZ NUSRET CAN, KALKANLI ARİF (2019). Vacuum-Assisted Treatment in Fournier Gangrene. Journal of Academic Research in Medicine.

23)LOVMIS M, ONUK ÖZKAN, AKTAŞ S, ALKARA U, MERCİLESS O, LOVMIS S (2020). Two Renal Transplants From Living Donors With Horseshoe Kidneys. Urology.

24)ALİ EROĞLU, MUAMMER AYDIN, ÖZKAN ONUK, NUSRET CAN ÇİLESİZ, BARIŞ NUHOĞLU (2020). Investigation of Sexual Dysfunction in Premenopausal Women with Urinary Incontinence. Journal of Academic Research in Medicine.

25)TUNCAY TAŞ, BASRİ ÇAKIROĞLU, ERSAN ARDA, ÖZKAN ONUK, BARIŞ NUHOĞLU (2021). Early Clinical Results of the Tolerability, Safety, and Efficacy of Autologous Platelet-Rich Plasma Administration in Erectile Dysfunction. Sexual Medicine,.

26)ÖZKAN ONUK, NUSRET CAN ÇİLESİZ, ARİF ÖZKAN, ELBRUS ZARBALİYEV, NURTEN DAYIOĞLU, BARIŞ NUHOĞLU (2020). Urological Injuries in the Civil War of Libya.

Publications and articals goes on.

Dr. Uwe Kehler is a German neurosurgeon specializing in vascular and spinal neurosurgery, with expertise in brain tumors, nerve dysfunctions, hydrocephalus, and trigeminal neuralgia. He holds a degree in general medicine from the University of Lübeck and is certified in neurosurgery and vascular neurosurgery. Dr. Kehler has performed over 2,000 neurological operations and 350 cerebral tumor operations with success rates up to 90%. He is a member of several professional organizations and has written over 85 research papers.

Dr. Peter Ulrich is the Head of the Neurosurgery Department in Nordwest Clinic, Germany. He specializes in brain, spine, head and vessels microsurgery, and has been practicing since 1985. He offers consultations, MRI, CT and PET-CT tests, and is a member of various medical organizations.

Assoc. Prof. Ozdogan, M.D., Ph.D., completed his education at Yeditepe University Health Sciences Institute in the Molecular Medicine Doctorate Program under Prof. Dr. Turgay İsbir, and he also studied at Saint Louis University in Arkansas, USA, with Prof. Dr. M. Gazi Yasargil. He pursued a Clinical Fellowship in Brain and Nerve Surgery at Yeditepe University Hospital, guided by Prof. Dr. Yasargil and Prof. Dr. Uğur Türe. Additionally, he underwent specialization training at Ufuk University Faculty of Medicine, the Faculty of Medicine at Gazi University, and completed his secondary education at İçel Anatolian High School.

Professionally, he has held various positions, including Faculty Member in the Department of Neurosurgery at Haliç University, and Associate Professor at Private Adatip Istanbul Hospital and Biruni University Hospital. He has also served as an Associate Professor at S.B.U. Kartal, Sancaktepe, and Istanbul Training and Research Hospitals, and worked as a Chief Assistant at S.B.U. Gaziosmanpaşa Taksim and Kartal Training and Research Hospitals. His earlier roles include Specialist Doctor at S.B.U. Baltalimanı Bone Diseases Hospital and Mus State Hospital, as well as Clinical Fellow at Yeditepe University Faculty of Medicine Hospital.

Assoc. Prof. Özdoğan is a member of several professional associations, including the Turkish Neurosurgery Association, Turkish Spine Association, and the Turkish Neurosurgery Society’s Neuroanatomy, Neurovascular, and Neurooncology Groups. He is also affiliated with the European Association of Neurosurgical Societies.

 Medical Experience

- *2023 - Present*: Memorial Şişli Hospital  

 Neurosurgery Specialist / Istanbul

- *2013 - 2023*: Bezmialem University Faculty of Medicine  

 Neurosurgery Specialist / Istanbul

- *2011 - 2013*: Konya Beyşehir State Hospital  

 Neurosurgery Specialist / Konya

- *2010 - 2011*: Bezmialem University Faculty of Medicine  

 Research Assistant in Brain and Nerve Surgery / Istanbul

 Medical Education

- *2021 - 2023*: Bezmialem Vakif University Faculty of Medicine  

 / Istanbul / Turkey

- *2006 - 2011*: Bezmialem Vakif University Faculty of Medicine  

 / Istanbul / Turkey

- *2000 - 2006*: Istanbul University Cerrahpasa Faculty of Medicine  

 / Istanbul / Turkey

Prof. Dr. Ilhan Elmaci is a leading neurosurgeon. He is known for his skill in brain and spinal surgeries, neurooncology, and skull base surgery. He has worked at top institutions such as Johns Hopkins University. Dr. Elmaci has introduced new techniques in microsurgery and endoscopic skull base surgery.

He is the founding chairman of the Skull Base Society in Turkey. He is also an active member of the European Skull Base Society. Dr. Elmaci has helped advance neurosurgery through teamwork across specialties. He led Turkey’s first EANS-accredited neurosurgery clinic. He also holds accreditations from the European Association of Neurosurgical Societies.

Dr. Elmaci has published over 110 scientific papers and given more than 250 presentations at congresses. His work continues to influence neurosurgical practice and patient care around the world.

Dr. Umut Dogu is a neurosurgeon with strong experience in advanced spine care. He earned his medical degree from Hacettepe University. He completed his neurosurgery residency at Dışkapı Yıldırım Beyazıt Training & Research Hospital. Dr. Dogu has worked as a specialist at Yozgat City Hospital, Emsey Hospital Advanced Spine Center, and Memorial Şişli Hospital. He currently practices at Lokman Hekim Istanbul Hospital.

Dr. Dogu treats degenerative spine diseases, traumatic spine injuries, spinal tumors, and infectious spine diseases. He also manages congenital and developmental spinal disorders. His expertise includes pain-focused procedures such as neuromodulation and vertebroplasty. Dr. Dogu is a member of the Turkish Medical Association and the Turkish Neurosurgical Society.

• Expert in neurosurgery, specializing in brain and spine disease surgery.
• Performed over 2500 surgeries, including brain tumor and skull base operations.
• Internationally trained, with experience in Poland, Germany, and Russia.
• Specializes in endoscopic spinal surgery and interventional pain treatment.
• International instructor of RIWO Spine full endoscopic spine surgery.
• Proficient in multiple languages: Polish, German, Russian, English.
• Conducted surgeries for gliomas, discopathies, and microvascular decompression.
• Expertise in endovascular treatments for brain aneurysms and hemangiomas.
• Utilizes state-of-the-art techniques like artificial disc insertion and spinal stimulators.
• Offers online consultations for international patients with neurosurgical needs.

Dr. Radoslaw Michalik is a spine surgeon with expertise in artificial lumbar and cervical disc implantation. He also specializes in endoscopic removal of lumbar disc hernias and surgery for spinal tumors. Dr. Michalik has performed over 1,000 advanced spinal procedures. His high success rate makes him a leader in minimally invasive spine surgery.

He graduated from the Medical University in Warsaw. Dr. Michalik has expanded his skills through internships and conferences in the USA, Germany, Monaco, the Netherlands, Switzerland, and Spain. He has published several peer-reviewed articles in neurosurgery. He is known for his work in improving spinal surgery techniques.

2019 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL BAHCELIEVLER HOSPITAL

Neurosurgery Specialist

2019 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SERVICE HOSPITAL

Neurosurgery Specialist

2019 - 2019, /USA

Rhode Island Hospital

Neurosurgery Specialist

2018 - 2019, /USA

UNIVERSITY OF CALIFORNIA SAN FRANCISCO SPINA CENTER

Neurosurgery Specialist

2015 - 2018, Istanbul/Istanbul/Türkiye

KOC UNIVERSITY HOSPITAL

Neurosurgery Specialist

2013 - 2014, Corum/Corum/Türkiye

HITIT UNIVERSITY CORUM EDUCATION AND RESEARCH HOSPITAL

Neurosurgery Specialist

2007 - 2013, Ankara/Ankara/Türkiye

ATATURK EDUCATION AND RESEARCH HOSPITAL

Neurosurgery Research Assistant

I am a graduate of the Medical University of Warsaw, a specialist neurosurgeon. I gained my professional experience in the Neurosurgery Clinic of the MSWiA Hospital in Warsaw, the Neurosurgery Clinic of the 2nd Faculty of Medicine of the Medical University of Warsaw, the Institute of Experimental and Clinical Medicine of the Polish Academy of Sciences.

I perform a wide range of neurosurgical operations, including spine surgery. I am also a long-time academic lecturer, co-author of several articles and congress presentations. I have participated in numerous national and international congresses and trainings, including in the field of endoscopic spine surgery. 

Membership in organizations 

EUROSPINE – European Society of Spine Surgery, 

PTNCH – Polish Neurosurgical Society, 

PTCHK – Polish Society of Spine Surgery.

Information about the doctor

Education

1999 - 2005 Kaunas Medical University, Faculty of Medicine

2005 - 2006 Kaunas Medical University, Faculty of Medicine, medical internship

2006 - 2011 Vilnius University, Faculty of Medicine, neurosurgery residency

Professional experience

2005 - 2006 VšĮ Klaipėda Hospital, Admission Department, physician assistant

2005 - 2006 VšĮ Klaipėda Hospital, Department of Vascular Surgery, physician assistant

2005 - 2006 V. Budanov's private GMP, physician assistant

2007 - 2008 VšĮ Molėtai hospital, medical doctor

2008 - 2011 VšĮ Republican Vilnius University Hospital, medical doctor

Since 2011 VšĮ Republican Vilnius University Hospital, neurosurgeon

Since 2014 VšĮ VUL Santariškių Clinics, neurosurgeon

Since 2013 Vilnius "Kardiolitos Klinikos", neurosurgeon

Courses

European Association of Neurosurgical Societies (EANS) courses:

Brain Injury and Functional Neurosurgery, Czech Republic 2009

Spinal and Peripheral Neurosurgery, Italy 2010

Neuroangiosurgery, Estonia 2011

Neuro-oncology, Hungary 2012

In 2012, he passed the EANS neurosurgery exam