Prof. Dr. Hakan ŞİMŞEK

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Neurosurgery
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experiences

Specialization from GATA Haydarpaşa Training Hospital 2010

Specialist Dr -Çorlu Military Hospital 2010-2011

Specialist Dr- Kasımpaşa Military Hospital (2011-2012)

Specialist Dr- GATA Haydarpaşa Training Hospital (2013-2014)

Clinical Fellowship- Johns Hopkins University Hospital, Baltimore, USA (Movement disorders, Parkinson’s, Epilepsy Surgery, Functional Neurosurgery / 2014-2015)

Assistant Professor Dr- GATA Haydarpasa Training Hospital 2015-2016

Assistant Professor Dr, Department of Neurosurgery, Clinical Administrative and Training Responsible, University of Health Sciences Sultan II Abdulhamid Han Training and Research Hospital (2016-2020)

Dr. Faculty Member SBÜ, Hamidiye Faculty of Health Sciences (2018-2020)

certificates

Medical Faculty and Year Graduated from
Gülhane Military Medical Academy, Military Medical Faculty 1998
Place and Year of Specialization Training
Gülhane Military Medical Academy, Haydarpaşa Training Hospital 2010

publications
[1] Asir A, Guven, G., Tekin, T., Kutlay, AM, Çolak, A., Simsek, H., Demircan, MN
Three-dimensional versus conventional digital subtraction angiography in the diagnosis of
intracranial aneurysms: case report . Balkan Military Medical Review 2007; 10: 147-9.
[2] Asir A, Simsek H, Kutlay AM, Çolak A, Demircan MN, Çetinkal A, Seçer H İ and
Kaya S. Surgical Stabilization of Multiple Spine Tumors. Balkan Military Medical Review 2007;
10:95-9.
[3] Atabey C, Gocmen S, Simsek H, Zorlu E, Demircan MN, Colak A and Dinc C. Surgical
results of degenerative spondylolisthesis patients over 70 years old: a single-center experience
and clinical outcomes. Turkish neurosurgery 2012; 22: 534-9.
[4] Çetinkal A, Çolak, A., Aşır, A., Kutlay, AM, Demircan, MN, Şimşek, H., Güven, G. Triventricular
hydrocephalus and endoscopic third ventriculostomy in adults. Turkish
Journal of Neurosurgery 2007; 17: 149-54.
[5] Çetinkal A, Kutlay, AM, Çolak, A., Şimşek, H., Aşır, A., Topuz, AK, Demircan, MN
. Ethmoidal osteoma with orbital extension presenting with visual symptoms and proptosis: case
report. Turkish Journal of Neurosurgery 2008; 18:1-4.
[6] Cetinkal A, Colak A, Topuz K, Demircan MN, Simsek H, Berber U, Umur AS, Selcuki
M and Vatansever H S. The effects of meloxicam on neural tube development in the early stage
of chick embryos. Turkish neurosurgery 2010; 20: 111-6.
[7] Colak A, Kutlay, M., Pekkafali, Z., Saracoglu, M., Demircan, N., Simsek, H., Akin, O.
N., Kibici, K. Use of sonography in carpal tunnel syndrome surgery . A prospective study.
Neurologia medico-chirurgica 2007; 47: 109-15.
[8] Colak A, Simsek H and Kaya S. Further modified Taylor retractor for spinal surgery.
Turkish neurosurgery 2013; 23: 590-2.
[9] Colak A, Topuz K, Kutlay M, Kaya S, Simsek H, Cetinkal A and Demircan M N. A less
invasive surgical approach in the lumbar lateral recess stenosis: direct approach to the medial
wall of the pedicle. European spine journal: official publication of the European Spine Society,
the European Spinal Deformity Society, and the European Section of the Cervical Spine
Research Society 2008; 17: 1745-51.
[10] Demircan MN, Asir A, Cetinkal A, Gedik N, Kutlay AM, Colak A, Kurtar S and Simsek
H. Is there any relationship between proinflammatory mediator levels in disc material and
myelopathy with cervical disc herniation and spondylosis? A non-randomized, prospective
clinical study. European spine journal : official publication of the European Spine Society, the
European Spinal Deformity Society, and the European Section of the Cervical Spine Research
Society 2007; 16: 983-6.
[11] Eroglu A, Cuce F, Simsek H, Topuz AK and Duz B. Basal cell adenocarcinoma of the
parotid gland with rare scalp metastasis: a case report. Turkish neurosurgery 2015; 25: 177-9.
[12] Eroğlu A, Topuz AK, Simsek H, Dinc C, Demirel D and Ipcioglu O. Investigation of
neuroprotective effects of topiramate as an antiepileptic agent in experimental spinal cord injury
model. Turk J Phys Med Rehab 2016; 62:1-10.
[13] Gocmen S, Atabey, C., Guven, G., Simsek, H., Colak, A. Management of spinal epidural
lipomatosis: a report of two cases. J Neurol Sci [Turk] 2012; 29: 851-6.
[14] Gocmen S, Topuz AK, Atabey C, Simsek H, Keklikci K and Rodop O. Peripheral nerve
injuries due to osteochondromas: analysis of 20 cases and review of the literature. Journal of
neurosurgery 2014; 120: 1105-12.
[15] Karagöz E, Ulçay A, Şimşek H, Turhan V, Erdem H, Acar A, Oncul O and Gorenek L. A
Rare Case of Brucella Spondylodiscitis Mimicking Lumbar Disc Herniation. Medical Science
2016; 5(1): 271-4.
[16] Kutlay AM, Çolak, A., Yıldız, Ş., Şimşek, H., Aşır, A., Çetinkal, A., Kaya, S., Demircan, MN
. Neurosurgical infections and hyperbaric oxygen therapy. Turkish
Journal of Neurosurgery 2008; 18:34-41.
[17] Kutlay M, Colak A, Simsek H, Ozturk E, Senol MG, Topuz K and Demircan M N. Use
of ultrasonography in ulnar nerve entrapment surgery–a prospective study. Neurosurgical review
2009; 32: 225-32; discussion 32.
[18] Kutlay M, Colak A, Simsek H, Yildiz S, Topuz K, Kaya S, Cetinkal A and Demircan M.
Antibiotic and hyperbaric oxygen therapy in the management of post-operative discitis. Undersea
& hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc 2008; 35:
427-40.
[19] Kutlay M, Simsek H, Colak A and Demircan M N. Balloon compression technique in the
management of persistent intraoperative intratumoral hemorrhage resulting from stereotactic
biopsy: technical note. Neurosurgery 2010; 66: 334-5; discussion 5.
[20] Kutlay M, Topuz K, Colak A, Simsek H, Cetinkal A and Demircan M N. Management of
disc herniations with bi-radicular symptoms via combined lateral and interlaminar approach.
Neurosurgical review 2010; 33: 97-105.
[21] Onguru O, Duz B, Simsek H, Gunal A and Gonul E. Pituitary macroadenomas (>3 cm) in
young adulthood: Pathologic and proliferative characteristics. Neurol Neurochir Pol 2015; 49:
212-6.
[22] Simsek H, Saglam, O., Malkoc, E., Kaya, S. Oblique MR imaging in cervical spine
surgery. J Clin Anal Med 2015; 6:660-3.
[23] Simsek H. Intraoperative diagnosis of an anterior sacral meningocele mimicking a giant
ovarian cyst in an adult. Vojnosanitetski pregled 2017, 10.2298/VSP160508364S: 364-.
[24] Simsek H. Anterior Cervical Discectomy And Fusion Solely With PEEK Cages In
Multilevel Cervical Spondylotic Radiculomyelopathy: Single Center Clinical Experience With
58 Consecutive Patients. Medicine Science 2017, 10.5455/medscience.2017.06.8612.
[25] Şimşek H, Çolak, A. Answer to the Letter to the Editor of Prof. HV Crock concerning
”A less invasive surgical approach in the lumbar lateral recess stenosis: direct approach to the
medial wall of the pedicle” (Colak A et al (2008) Eur Spine J 17:1745–1751). European spine
journal: official publication of the European Spine Society, the European Spinal Deformity
Society, and the European Section of the Cervical Spine Research Society 2009; 18: 919.
[26] Şimşek H, Eroğlu, M. Neurosurgical diseases and malpractices. Turkiye
Clinics J Fam Med-Special Topics 2013; 4:17-20.
[27] Şimşek H, Anderson, WS A Case of Lung Cancer with Brain Metastases Diagnosed
After Epileptic Seizure. J Clin Anal Med 2015, 10.4328/JCAM.3530.
[28] Simsek H and Anderson W S. Cognitive Impairment After Deep Brain Stimulation
Surgery. Neurosurgery 2015; 77: N12-3.
[29] Simsek H and Colak A. Answer to the Letter to the Editor of Hue Zhang concerning “A
less invasive surgical approach in the lumbar lateral recess stenosis: direct approach to the medial
wall of the pedicle” by A. Colak et al. (2008) Eur Spine J; 17:1745-1751. European spine journal
official publication of the European Spine Society, the European Spinal Deformity Society, and
the European Section of the Cervical Spine Research Society 2015, 10.1007/s00586-015-3909-y.
[30] Simsek H, Colak A, Kaya S, Kutlay M, Cetinkal A, Haholu A and Demircan M N. The
effects of Diesel exhaust particles on neural tube development in the early stage chicken embryo.
Turkish neurosurgery 2012; 22:77-82.
[31] Simsek H and Eroglu M. Neurosurgical Diseases and Incorrect Applications. Turkiye
Clinics J Fam Med-Special Topics 2013; 4:17-20.
[32] Simsek H, Kutlay M, Colak A, Haholu A, Kaya H, Ozyurt M and Demircan M N.
Concomitant tubercular and fungal cerebellar abscess in an immunocompromised girl. Turkish
neurosurgery 2013; 23: 88-94.
[33] Şimşek H, Sağlam Ö, Zorlu E, Sönmez G, Kendirli MT and Düz B. Impact of
considering occipital nerve blockade in differential diagnosis of headache on cost and workday
loss. Gülhane Medical Journal 2016; 58:306-14.
[34] Şimşek H, Yıldızhan A and Çermik H. Phrenic nerve reconstruction by intercostal nerve
neurotization on pigs. Int J Clin Exp Med 2017; 10(3): 4687-95.
[35] Simsek H and Zorlu E. Cystic lesion of the ventriculus terminalis accompanied by split
cord malformation. Spine J 2016, 10.1016/j.spinee.2016.03.053.
[36] Simsek H, Zorlu E, Kaya S and Sahin M A. Late presentation of missed aorta-caval
fistula as arteriovenous malformation following lumbar disc surgery. Spine J 2016; 16:e615-6.
[37] Simsek H., Zorlu E., Bakal O., Akarsu S. and Güney MS Continuous intrathecal
baclofen delivery in severely disabling spasticity. Vojnosanitetski pregled 2017,
10.2298/VSP160508039S.
[38] Tekin T, Bayrakli F, Simsek H, Colak A, Kutlay M and Demircan M N. Lumbar epidural
capillary hemangioma presenting as lumbar disc herniation disease: case report. Spine 2008; 33:
E795-7.
[39] Topuz AK and Şimşek H. Diagnostic methods and
treatment algorithm of craniovertebral junction anomalies. Turkish Journal of Neurosurgery 2013; 23: 150-7.
[40] Topuz K, Colak A, Cemil B, Kutlay M, Demircan MN, Simsek H, Ipcioglu O,
Kucukodaci Z and Uzun G. Combined hyperbaric oxygen and hypothermia treatment on
oxidative stress parameters after spinal cord injury: an experimental study. Archives of medical
research 2010; 41: 506-12.
[41] Topuz K, Colak A, Kaya S, Simsek H, Kutlay M, Demircan MN and Velioglu M. Twolevel contiguous
cervical disc disease treated with peek cages packed with demineralized bone
matrix: results of 3-year follow-up. European spine journal: official publication of the European
Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical
Spine Research Society 2009; 18: 238-43.
[42] Topuz K, Eroglu A, Simsek H, Atabey C, Cetinkal A and Colak A. Demographical
Aspects of Central Large Lumbar Disc Herniation. Turkish neurosurgery 2016; 26: 111-8.
[43] Topuz K, Kutlay AM, Simsek H, Colak A, Kaya S and Demircan M N. Effect of
hyperbaric oxygen therapy on the duration of treatment of spinal tuberculosis. Journal of clinical
neuroscience: official journal of the Neurosurgical Society of Australasia 2009; 16: 1572-7.
[44] Topuz K, Kutlay M, Simsek H, Atabey C, Demircan M and Senol Guney M. Early
surgical treatment protocol for sciatic nerve injury due to injection–a retrospective study. British
journal of neurosurgery 2011; 25: 509-15.