Medical School

Hacettepe University Medical Faculty, 1988

Post-Graduate Training

T.R. Ministry of Health Emergency & Traumatology Hospital, 1994

Science Doctor; Ankara Un. Medical Faculty, Physiology Department, 2006

Professional Experience

Specialty: Neurosurgery 
Ankara Numune Hospital 2nd Neurosurgery Clinic and T.R. Ministry of Health Emergency & Traumatology Hospital, 1988-1994
Obligation: Samsun State Hospital 1994-1995
Research and Clinical Fellow, University of Washington Department of Neurosurgery, Seattle, USA, 1995-1996
Ankara Private Çağ Hospital 1996-1997
SSK Ankara Education & Research Hospital 2nd Neurosurgery Clinic 1997-2012
Skull Base Research Fellow, University of Wisconsin Department of Neurosurgery, Madison, USA, January-August 2008
Lokman Hekim Ankara Hospital 2012-2017

Medical Interests

Brain and spinal tumors
Pituitary tumors and endoscopic surgeries of skull base 
Cerebrovascular disease surgeries
Neuro-intensive care
Movement disorders surgery (Parkinson, essential tremor, dystonia)
Congenital anomalies and hydrocephaly
Trigeminal neuralgia and hemi-facial spasm surgery
Peripheric nervous disease surgery
Low back and neck hernias.
Vertebral slip and fracture surgeries

Scientific Publications

A- Articles published in national peer-reviewed journals:

1. Beşkonaklı, E., E. Coşan, H. Seçkin, Y. Yalçınlar ve F. Aksoy, “Anjiolenfoid hiperplazi (Kimura hastalığı): olgu sunumu”, Türk Nöroşirürji Dergisi, 2,73-75 (1991). (Angiolymphoid hyperplasia (Kimura disease): case report). 
2. Akalan, N. ve H. Seçkin, “Blood-brain barrier alterations following intracerebral grafting: Solid and cell suspensions of fetal central nervous system tissue”, Turk Neurosurg, 4, 21-26 (1994).
3. Seçkin, H. ve H.Z. Kars, “Orta serebral arter fenestrasyonu: olgu sunumu”, Türk Nöroşirürji Dergisi, 11, 64-67 (2001). (Mid-cerebral artery fenestration: case report). 
4. Seçkin, H., A. Varan, B. Demirhan, D. Altınok ve H.Z. Kars, “Primary Ewing’s sarcoma of the cranium: case repAort”, Turk Neurosurg, 11, 130-133 (2001).
5. Şimşek, S., H. Seçkin, D. Belen ve S. Erekul, “Ollier hastalığına eşlik eden intrakranial glioma”, Türk Nöroşirürji Dergisi, 12, 66-69 (2002). (Intracranial glioma accompanying Ollier disease). 
6. Seçkin, H., A. Kazancı, S. Men ve H.Z. Kars, “Bilateral duplication of the superior cerebellar artery associated with fetal posterior cerebral artery”, Turk Neurosurg, 12, 140-141 (2002).
7. Öksüz, E., H. Seçkin, A. Kazancı ve H.Z. Kars, “Kafa içi basınç izlemi ve komplikasyonları”, T Klin J Med Sci, 23, 289-294 (2003). (Intracranial pressure follow-up and complications). 
8. Men, S., H. Öztürk, M.M. Fırat, S. Çekirge, H. Seçkin, A. Acıduman, Z. Kars, Z. Şekerci ve B. Hekimoğlu, “İntrakraniyal anevrizmalarda endovasküler tedavi”,  Türk Nöroşirürji Dergisi, 13, 26-34 (2003). (Endovascular treatment in intracranial aneurysms). 
9. Seçkin, H., H.Z. Kars, A. Güzel ve R. Türkyılmaz,“ Chryseobacterium meningosepticum meningitis in a neurosurgical patient”, Turk Neurosurg, 14, 87-90 (2004). 
10- Seçkin, H., M. Bavbek, E. Öztürk, “Hemangioblastomlar”, Türkiye Klinikleri J Surg Med Sci, 3, 144-148 (2007). (Hemangioblastomas). 
11-Seçkin, H. ve K. Yiğitkanlı, “Geriatrik omurga travmaları”, Türkiye Klinikleri J Neurosurg- Special Topics, 1, 133-139 (2008). (Geriatric vertebral traumas). 
12-Seçkin H., Fesli R., “Meningiomalarda araknoid planın cerrahi üzerine etkisi.” Türk Nöroşirürji Dergisi, 21, 97-101 (2011). (Effect of arachnoid plane on meningiomas). 

Articles published in international peer-reviewed journals

1. Akalan, N., H. Seçkin, C. Kiliç, T. Ozgen, “Benign extramedullary tumors in the foramen magnum region,” Clin Neurol Neurosurg, 96, 284-289 (1994).

2. Grady, M.S., R.F. Cody Jr, D.O. Maris, T.D. McCall, H. Seckin, S.R. Sharar, H.R. Winn, “P-selectin blockade following fluid-percussion injury: behavioral and immunochemical sequelae,” J Neurotrauma, 16, 13-25 (1999).

3. Altinok, D., H. Seçkin, Y.T. Yildiz, L. Gürses, S. Erekul, H.Z. Kars, “A ruptured teratoma with malignant transformation,” Eur Radiol, 10, 1359-1360 (2000).

4. Seckin, H., K. Yigitkanli, O. Ilhan, U. Han, M. Bavbek, “Breast carcinoma metastasis and meningioma. A case report,” Surg Neurol, 66, 324-327 (2006).

5. Seçkin, H., M. Bavbek, S. Dogan, B. Keyik, K. Yigitkanli, “Is every chronic low back pain benign? Case report,” Surg Neurol, 66, 357-360 (2006).

6. Seçkin, H., A. Kazanci, K. Yigitkanli, S. Simsek, H.Z. Kars, “Chronic subdural hematoma in patients with idiopathic thrombocytopenic purpura: A case report and review of the literature,” Surg Neurol, 66, 411-414 (2006).

7.Tatlı, M., A. Guzel, K. Yiğitkanli, H. Seçkin, “ Isolated fourth ventricular haematoma associated with traumatic atlanto-occipital dislocation”, Injury Extra, 37, 416-418, (2006).

8. Guzel, A., M. Tatli, D. Belen, H. Seckin, “Spinal cord compression of primary extragonadal giant yolk sac tumor,” Spinal Cord, 45, 254-257 (2007).

9. Sorar, M., H. Seçkin, C. Hatipoglu, I.I. Budakoglu, K. Yigitkanli, M. Bavbek, H.Z. Kars,  “Cervical compression myelopathy: is fusion the main prognostic indicator?,” J Neurosurg Spine, 6, 531-539 (2007).

10. Sorar, M., U. Er, H. Seçkin, M.H. Ozturk, M. Bavbek, “Spinal subdural abscess: a rare cause of low back pain,” J Clin Neurosci, 15,  292-294 (2008). 

11. Seckin, H., B. Yagmurlu, K. Yigitkanli, H.Z. Kars, “Metabolic changes during successful medical therapy for brain hydatid cyst: case report,” Surg Neurol, 70, 186-189 (2008).

12. Seçkin, H., K. Yigitkanli, O. Besalti, K. Kosemehmetoglu, E. Ozturk, S. Simsek, D. Belen, M. Bavbek, “Lamotrigine attenuates cerebral vasospasm after experimental subarachnoid hemorrhage in rabbits,” Surg Neurol, 70, 344-351, (2008).

13. Simsek, S., K. Yigitkanli, A. Comert, H.I. Acar, H. Seckin, U. Er, D. Belen, I. Tekdemir, A. Elhan, “Posterior osseous bridging of C1,” J Clin Neurosci, 15, 686-688 (2008).

14. Seçkin, H., E. Avci, K. Uluç, D. Niemann, M.K. Başkaya, “The work horse of skull base surgery: orbitozygomatic approach. Technique, modifications, and applications,” Neurosurg Focus, 25, E4 (2008).

15. Seçkin, H., A.Y. Demirci, A. Değerliyurt, M. Dağlı, M. Bavbek, “Posttraumatic infarction in the basal ganglia after a minor head injury in a child: case report,” Turk Neurosurg, 18, 415-419 (2008).

16. Gürses, L., H. Seçkin, S. Simşek, O.O. Senel, K. Yigitkanli, E. Oztürk, O. Beşaltı,  “Effects of raloxifene on cerebral vasospasm after experimental subarachnoid hemorrhage in rabbits,” Surg Neurol,  72, 490-494 (2009)

17. Izci, Y., H. Seçkin, J. Medow, C. Turnquist, M.K. Başkaya,  “Sulcal and gyral anatomy of the orbitofrontal cortex in relation to the recurrent artery of Heubner: an anatomical study,” Surg Radiol Anat, 31, 439-445 (2009). 

18. Liu, Y.P., H. Seçkin, Y. Izci, Z.W. Du, Y.P. Yan, M.K. Başkaya, “Neuroprotective effects of mesenchymal stem cells derived from human embryonic stem cells in transient focal cerebral ischemia in rats,” J Cereb Blood Flow Metab, 29, 780-91 (2009). 

19. Seçkin, H., K. Yiğitkanli, O. Kapucu, M. Bavbek, “Crossed Wernicke's Aphasia After Aneurysmal Subarachnoid Hemorrhage: A Case Report,” Turk Neurosurg,;19,77-81 (2009).

20. Seçkin, H., O. Ateş, A.M. Bauer, M.K. Başkaya,  “Microsurgical anatomy of the posterior spinal artery via a far-lateral transcondylar approach,” J Neurosurg Spine, 10, 228-233 (2009).

21. Izci, Y., H. Seçkin, O. Ateş, M.K. Başkaya, “Supracerebellar transtentorial transcollateral sulcus approach to the atrium of the lateral ventricle: microsurgical anatomy and surgical technique in cadaveric dissections,” Surg Neurol, 72, 509-14 (2009).

22. Seçkin, H., S. Şimşek, E. Öztürk, K. Yiğitkanlı, Ö. Özen, Ö. Beşaltı, İ. Solaroğlu, M. Bavbek, “Topiramate attenuates hippocampal injury after experimental subarachnoid hemorrhage in rabbits,” Neurol Res, 31, 490-5, (2009). 
23. Seçkin, H., N. Patel, E. Avcı, R. Dempsey, M.K. Baskaya, “Removal of Cavernous
Malformation of the Meckel’s Cave by Extradural Pterional Approach Using Heros Muscle Dissection Technique” Surg Neurol,  72, 733-6 (2009).
24. Simsek S., Yigitkanli K., Turba UC., Comert A., Seçkin H., Tekdemir I., Elhan A., “Safe zone for C1 lateral mass screws: anatomic and radiological study.” Neurosurgery, 65, 1154-60 (2009).
25. Simsek S., Yigitkanli K., Seçkin H., Comert A., Acar HI., Belen D., Tekdemir I., Elhan A., “Ideal screw entry point and projection angles for posterior lateral mass fixation of the atlas: an anatomical study.” Eur Spine J, 18, 1321-5 (2009).
26. Simsek S., Yigitkanli K., Seckin H., Akyol C., Belen D., Bavbek M., “Freehand C1 lateral mass screw fixation technique: our experience.” Surg Neurol. 72, 676-81 (2009). 
27. Kazanci A., Seckin H., Karadeniz U., Kazanci D., Turan S., Kazanci B., Yigitkanli K., Bavbek M., “Comparison of the effect of mexiletine and methylprednisolone on neural function and histopathological damage after transient spinal cord ischemia in rabbits.” Turk Neurosurg, 20, 43-9 (2010).
28. Avcı E., Aktüre E., Seçkin H., Uluç K., Bauer AM., Izci Y., Morcos JJ., Başkaya MK., “Level I to III craniofacial approaches based on Barrow classification for treatment of skull base meningiomas: surgical technique, microsurgical anatomy, and case illustrations.” Neurosurg Focus, 30(5):E5 (2011).
29. Kayaci S, Kanat A, Gucer H, Seckin H, “Primary osteoma of the orbit with atypical facial pain: case report and literature review”, Turk Neurosurg, 22, 389-92 (2012).

30. Demirci AY, Seckin H, Besalti O, Arikok AT, Yigitkanli T, Caliskan M, Yigitkanli K, Bavbek M, “Study the effects of zonisamide on fine structure of rabbit basilar artery and hippocampus in rabbit subarachnoid hemorrhage model”, Acta Neurochir (Wien), 155(8):1531-7.10.1007/s00701-013-1726-9, (2013)
31. Arıkök AT, Onder E, Seçkin H, Kaçar A, Fesli R, Oğuz AS, Alper M. “Osteopontin expressions correlate with WHO grades and predict recurrence in meningiomas”, Brain Tumor Pathol. 31:94-100 (2014) 
32. Onder E,  Arikök AT, Seçkin H, Alper M. Decrease in serine protease HtrA1 expression correlates with grade and recurrence in meningiomas. Adv Med Sci 60 (1): 139-143 (2015)
33-Turkoglu E, Seckin H, Gurer B, Ahmed A, Uluc K, Pulfer K, Arat A, Niemann D, Baskaya MK., “The cadaveric perfusion and angiography as a teaching tool: imaging the intracranial vasculature in cadavers.” J Neurol Surg B Skull Base. 75(6):435-44, (2014)
34- Atalay T, Ak H, Celik B, Gulsen I, Seckin H, Tanik N, Albayrak SB, Bavbek M. “Prognostic Factors in Oligodendrogliomas: a Clinical Study of Twenty-Five
Consecutive Patients. Asian Pac J Cancer Prev. 16(13):5319-23, (2015) 

Papers presented in international scientific meetings and published in proceedings:
1. Maris, D.O., R.F. Cody, H. Seckin, M.S. Grady, “Single day testing in the Morris water maze,” 13th Annual Neuroscience Meeting, San Diego J. Neurotrauma, 12, 965 (1995).
2.  Cody, R.F., D.O. Maris, H. Seckin, S.R. Sharar, M.S. Grady, “P-selectin blockade after fluid percussion injury: behavioral and anatomic sequelae”, 13th Annual Neuroscience Meeting, San Diego J. Neurotrauma, 12, 976 (1995).
3. Grady, M.S., R.F. Cody, D.O. Maris, H. Seckin, “Long-term effects of prior training vs. no training following lateral fluid percussion injury: behavioral and anatomic sequelae,"13th Annual Neuroscience Meeting, San Diego J. Neurotrauma, 12, 989 (1995).
4. Er U., L. Gürses, D. Belen, H. Seckin, E. Senveli, M. Bavbek, “Pituitary adenomas and their treatment,” 13th World Congress of Neurosurgery, WFNS, Marrakesh, (2005)
5. Er U., Gürses L., Saka C., Yiğitkanlı K., Belen D., Şimşek S., Sorar M., Kazancı A., Seçkin H., Şenveli E., Bavbek M., “Sublabial transseptal transsfenoidal approach to the pituitary adenomas: advantages and pitfalls,” Proc. 55th Societa Italiana di Neurochirurgia, Napoli, Sorrento, p.27, Nov, (2006).
6. Seçkin, H., Ç. Akyol, A.T. Arıkök, E. Öztürk,  M. Bavbek, “Meningiomas: 301 cases with clinical, radiological, surgical, histopathological characteristics and long-term follow-up,” 5th Meeting of The Asian Society for Neuro-Oncology, Congress Book, p:66-67, (2007). 
7. Seçkin, H., B. Kazancı, E. Öztürk, K. Yiğitkanlı, M. Bavbek, “Oligodendrogliomas: factors affecting outcome,” 5th Meeting of The Asian Society for Neuro-Oncology, Congress Book, p:114, (2007). 
8. Seçkin, H., E. Nalcaci, S. Olmez, C. Atbasoglu, “The alteration of cognitive functions in patients with cerebellar lesions,” Proc. 1st. Int. Symposium on Cognitive Neurosurgery, Castle of Weitenburg, Germany Vol. I, Supplement, Knirsch Verlag, Kirschentellinsfurt, (2007).
9. Seçkin, H., A. Ahmed, E. Avcı, K. Pulfer, D.B. Niemann, M.K. Baskaya, “Imaging the vascular tree in cadaveric heads,” 2nd International Levantine Forum, Programme and Abstract Book, p:53, 2008.
10. Serkan Şimşek, K. Yigitkanli, U. Er, H. Seckin, D. Belen, M. Sorar, L. Gurses, E. Senveli, M. Bavbek, “Internal stabilization of the craniocervical junctional anomalies: 7-years experience”, The 48th Annual Meeteing og the Korean Neurosurgical Society, p:61, 2008.

D- Articles published in national peer-reviewed journals:
1. Beşkonaklı, E., E. Coşan, H. Seçkin, Y. Yalçınlar ve F. Aksoy, “Anjiolenfoid hiperplazi (Kimura hastalığı): olgu sunumu”, Türk Nöroşirürji Dergisi, 2,73-75 (1991). (Angiolymphoid hyperplasia (Kimura disease): case report)). 
2. Akalan, N. ve H. Seçkin, “Blood-brain barrier alterations following intracerebral grafting: Solid and cell suspensions of fetal central nervous system tissue”, Turk Neurosurg, 4, 21-26 (1994).
3. Seçkin, H. ve H.Z. Kars, “Orta serebral arter fenestrasyonu: olgu sunumu”, Türk Nöroşirürji Dergisi, 11, 64-67 (2001). (Mid-cerebral artery fenestration: case report). 
4. Seçkin, H., A. Varan, B. Demirhan, D. Altınok ve H.Z. Kars, “Primary Ewing’s sarcoma of the cranium: case report”, Turk Neurosurg, 11, 130-133 (2001).
5. Şimşek, S., H. Seçkin, D. Belen ve S. Erekul, “Ollier hastalığına eşlik eden intrakranial glioma”, Türk Nöroşirürji Dergisi, 12, 66-69 (2002). (Intracranial glioma accompanying Ollier disease). 
6. Seçkin, H., A. Kazancı, S. Men ve H.Z. Kars, “Bilateral duplication of the superior cerebellar artery associated with fetal posterior cerebral artery”, Turk Neurosurg, 12, 140-141 (2002).
7. Öksüz, E., H. Seçkin, A. Kazancı ve H.Z. Kars, “Kafa içi basınç izlemi ve komplikasyonları”, T Klin J Med Sci, 23, 289-294 (2003). (Intracranial pressure and complications). 
8. Men, S., H. Öztürk, M.M. Fırat, S. Çekirge, H. Seçkin, A. Acıduman, Z. Kars, Z. Şekerci ve B. Hekimoğlu, “İntrakraniyal anevrizmalarda endovasküler tedavi”,  Türk Nöroşirürji Dergisi, 13, 26-34 (2003). (Endovascular treatment in intracranial aneurysms). 
9. Seçkin, H., H.Z. Kars, A. Güzel ve R. Türkyılmaz,“ Chryseobacterium meningosepticum meningitis in a neurosurgical patient”, Turk Neurosurg, 14, 87-90 (2004). 
10- Seçkin, H., M. Bavbek, E. Öztürk, “Hemangioblastomlar”, Türkiye Klinikleri J Surg Med Sci, 3, 144-148 (2007). (Hemangioblastomas). 
11-Seçkin, H. ve K. Yiğitkanlı, “Geriatrik omurga travmaları”, Türkiye Klinikleri J Neurosurg- Special Topics, 1, 133-139 (2008). (Geriatric vertebral traumas).  
12-Seçkin H., Fesli R., “Meningiomalarda araknoid planın cerrahi üzerine etkisi.” Türk Nöroşirürji Dergisi, 21, 97-101 (2011). (Effect of arachnoid plane on surgery in meningiomas). 

E- Other Publications 
1. Thesis
ı- Seçkin, H., “Fötal santral sinir sistemi dokusunun intraserebral transplantasyonu sonrası kan-beyin bariyeri değişiklikleri”, Ankara, (1994). Uzmanlık Tezi (Specialty thesis – Blood-brain barrier changes after intracerebral transplantation of foetal CNS).     
ıı-Seçkin, H., “Serebellum lezyonlu olgularda bilişsel işlev değişikliklerinin  incelenmesi”, Ankara, (2006). Doktora Tezi  (Doctorate thesis – Investigation of cognitive functional changes in phenomena with cerebellar lesion). 

2.  Turkish book sections: 
1- Seçkin, H. ve M. Bavbek, “Spinal kord travmasında nutrisyon desteği”, Nöroşirürji ve Nöroloji: Yoğun Bakımda Beslenme, H. Sabuncuoğlu ve C. Dener (Editörler), 69-75, Özkan Matbaacılık, (2009). (Nutritional support in spinal cord trauma). 
2- Seçkin, H., E. Avcı E ve M.K. Başkaya, “Orbitaya transkraniyal yaklaşımlar”, Orbita, E. Gönül (Ed.), Gülhane Matbaası, (2011). (Transcranial approaches to orbita). 

3. Translations 
ı-Nöroanatomi ve Fizyoloji, Bölüm 3, Nöroşirürji El Kitabı, Oruçkaptan H., Özcan O.E. (editors), (Greenberg M., Handbook of Neurosurgery, 6th edition), Güneş Tıp Kitabevi Yayınları, Ankara, (Baskıda) (Neuroanatomy and Physiology, Section 3, Neurosurgery Hand Book). 
ıı-Sonlanım Değerlendirilmesi, Bölüm 31, Nöroşirürji El Kitabı, Oruçkaptan H., Özcan O.E. (çeviri editörleri), (Greenberg M., Handbook of Neurosurgery, 6th edition), Güneş Tıp Kitabevi Yayınları, Ankara, (Baskıda). (Endpoint evaluation, Section 31, Neurosurgery Hand Book). 
ııı-Fasiyal Sinir Şıvannomaları, Bölüm 16, Samii’nin Beyin Cerrahisi İlkeleri, Er U., Er S., (çeviri editörleri), (Samii’s Essentials in Neurosurgery), Pelikan Yayıncılık, Ankara, (2011). (Facial Nerve Schwannomas, Section 16, Neurosurgery principles of Samii). 
ıv- Serebellopontin Köşe Meningiomalarından Sonra Fasiyal ve Kohlear Sinirlerin İşlevleri, Bölüm 21, Samii’nin Beyin Cerrahisi İlkeleri, Er U., Er S., (çeviri editörleri), (Samii’s Essentials in Neurosurgery), Pelikan Yayıncılık, Ankara, (2011). (Functions of Facial and Cochlear Nerve Functions after Cerebellopontin Corner Meningiomas, Section 21, Neurosurgery principles of Samii). 

4. Reports in bulletins:
ı-Seçkin, H., “Penetran balistik beyin hasarında tanı ve tedavi: güncel literatür seçmelerinin incelenmesi”, Nörotravma ve Yoğun Bakım Bülteni, 2, 9-13 (2007). (Diagnosis and treatment in penetrating ballistic brain damage: study of current literature selections). 
ıı- Seçkin, H., “Travmatik beyin hasarında monitörizasyon: güncel literatür seçmelerinin incelenmesi”, Nörotravma ve Yoğun Bakım Bülteni, 3, 11-13 (2008). (Monitorization in traumatic brain injury: study of current literature selections).