Browsing by Author "Kanat, Ayhan"
Now showing items 1-20 of 98
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Age- and gender-related radiological changes of the cervical spine: A study with largest magnetic resonance imaging database of 5672 consecutive patients
Güvercin, Ali Rıza; Arslan, Erhan; Hacıfazlıoğlu, Çiğdem; Kanat, Ayhan; Arslan, Elif; Yazar, Uğur (Wolters Kluwer Medknow Publications, 2023)Background: The morphological features of the cervical spine are an essential issue. This retrospective study aimed to investigate the structural and radiological changes in the cervical spine. Materials and Methods: A ... -
Analyzing of dark past and bright present of neurosurgical history with a picture of musicians
Gasenzer, Elena Romana; Kanat, Ayhan; Özdemir, Vacide; Neugebauer, Edmund (Taylor & Francis Ltd, 2018)Aim: Currently, neurosurgery has gone through moments of great renewal, however, in the first half of the 20th century, unwanted outcome after surgical approach had occurred. the aim of this historical overview of a picture ... -
“Aneurysm clip compression technique in the surgery of aneurysms with hard/calcified neck”
Kanat, Ayhan; Turgut, Mehmet; de Divitiis, Oreste (Elsevier Science Inc, 2018).... -
Asymmetric cross sectional area Size of the psoas muscle seems to be a key feature in patients with L4-5 lumbar disc herniations
Batçık, Osman Ersegun; Kanat, Ayhan; Özdemir, Bülent; Gündoğdu, Hasan (Turkish Neurosurgical Soc., 2022)AIM: To determine the relationship between the occurrence of lumbar L4-5 disc herniation (LDH) and the size of psoas muscles. MATERIAL and METHODS: The cross-sectional areas (CSAs) of the psoas muscles were measured at ... -
Biomechanical analysis of odontoid and transverse atlantal ligament in humans with ponticulus posticus variation under different loading conditions: Finite element study
Güvercin, Yılmaz; Yaylacı, Murat; Dizdar, Ayberk; Kanat, Ayhan; Uzun Yaylacı, Ecren; Ay, Sevilay; Abdioğlu, Ahmet Atilla; Şen, Ahmet (Elsevier, 2022)Purpose: Ponticulus posticus (PP) is a variation of the bone bridge that appears in the first cervical vertebra and through which the vertebral artery passes. Odontoid fractures are common spinal bone fractures in older ... -
Brachial artery vasospasm caused by cervical dorsal root ganglion degeneration after subarachnoid hemorrhage: An experimental study
Kayacı, Salim; Çakır, Tayfun; Aydın, Mehmet Dumlu; Kanat, Ayhan; Ömeroğlu, Muhammed; Levent, Akın; Kantarcı, A. Macit; Diyarbakırlı, Semih; Demirci, Elif (Elsevier Science Inc, 2019)PURPOSE: Subarachnoid hemorrhage (SAH) may lead to vasospasm in various vessels. the cervical nerves have a vasodilatory effect on the upper extremity arteries. the aim of this study was to investigate if there is a ... -
Central sagittal angle of the sacrum as a new risk factor for patients with persistent low back pain after caesarean section
Kazdal, Hızır; Kanat, Ayhan; Batçık, Osman Ersagun; Özdemir, Bülent; Şentürk, Şenol; Yıldırım, Murat; Kazancıoğlu, Leyla; Şen, Ahmet; Batçık, Şule; Balık, Mehmet Sabri (Korean Soc Spine Surgery, 2017)Study Design: Retrospective. Purpose: This study investigated the possible association of persistent low back pain (LBP) with caesarean section (CS) under spinal anesthesia. Overview of Literature: Many women suffer from ... -
Cervical disc hernia operations through posterior laminoforaminotomy
Yolaş, Coşkun; Özdemir, Nuriye Güzin; Okay, Hilmi Önder; Kanat, Ayhan; Şenol, Mehmet; Atçı, İbrahim Burak; Yılmaz, Hakan; Çoban, Mustafa Kemal; Yüksel, Mehmet Onur; Kahraman, Ümit (Medknow Publications & Media Pvt Ltd, 2016)Objective: the most common used technique for posterolateral cervical disc herniations is anterior approach. However, posterior cervical laminotoforaminomy can provide excellent results in appropriately selected patients ... -
Changes in number of water-filled vesicles of choroid plexus in early and late phase of experimental rabbit subarachnoid hemorrhage model; the role of petrous ganglion of glossopharyngeal nerve
Aydın, Mehmet Dumlu; Kanat, Ayhan; Türkmenoğlu, Osman Nuri; Yolaş, Coşkun; Gündoğdu, Cemal; Aydın, Nazan (Springer Wien, 2014)Cerebrospinal fluid (CSF) secretion may be increased in the early phases of subarachnoid hemorrhage (SAH), possibly via ischemic glossopharyngeal nerve discharges, and decreased due to glossopharyngeal nerve degeneration ... -
Comment on bunmaprasert et al. reducible nonunited type II odontoid fracture with atlantoaxial instability: Outcomes of two different fixation techniques. Int. J. Environ. Res. public health 2021, 18, 7990 comment
Kanat, Ayhan (MDPI, 2022)I read with great interest the paper of Bunmaprasert et al. [1]. They operated on 21 patients with atlantoaxial instability and compared the outcomes of two different fixation techniques. In the mentioned study, the ... -
Controversy about the protective role of volume in the frontal sinus after severe head trauma: larger sinus equates with higher risk of death
Çeliker, Metin; Kanat, Ayhan; Özdemir, Abdullah; Çeliker, Fatma Beyazal; Kazdal, Hızır; Özdemir, Bülent; Batçık, Osman Ersegun; Özdemir, Doğukan (Churchill Livingstone, 2020)The "crumple zone" hypothesis suggests that the paranasal sinuses protect the brain as a zone to distribute and absorb energy after trauma to the head. We investigated the relation between the size of the frontal sinus and ... -
The Correlation Between Hematoma Volume and Outcome in Ruptured Posterior Fossa Arteriovenous Malformations Indicates the Importance of Surgical Evacuation of Hematomas
Yılmaz, Adem; Müslüman, Ahmet Murat; Kanat, Ayhan; Çavuşoğlu, Halit; Terzi, Yüksel; Aydın, Yunus (2011)AMAÇ: Rüptüre posterior fossa arteriovenöz malformasyonlarda hematom volümü ile klinik sonuç arasındaki İlişki retrospektif olarak değerlendirildi. YÖNTEM ve GEREÇ: 1998 ile 2009 arasında kliniğimizde 127 hasta intrakranyal ... -
COVID-19 infection produces subarachnoid hemorrhage; acting now to understand its cause: A short communication
Batçık, Osman Ersagun; Kanat, Ayhan; Cankay, Tuğba; Öztürk, Gülşah; Kazancıoğlu, Leyla; Kazdal, Hızır; Gündoğdu, Hasan; Özdemir, Bülent; Bahçeci, İlkay; Kostakoğlu, Uğur; Batçık, Şule; Gündoğdu, Ömer; Sevilgen, Gökçen (Elsevier, 2021)In the medical literature, some case reports on the association of the COVID-19 infection and occurrence of spontaneous subarachnoid hemorrhage (SAH)have been reported Aim of the present paper is to search the causes of ... -
Deposition and characterization of the Ag nanoparticles on absorbable surgical sutures at the cryogenic temperatures
Altuntaş, Mehmet; Beriş, Fatih Şaban; Nevruzoğlu, Vagif; Karan, Yasin; Kanat, Ayhan; Tomakin, Murat (Springer Heidelberg, 2023)Surgical sutures are one of the most widely used medical devices for wound closure. In the meantime, the suture surface and area may be exposed to many microorganisms, and surgical site infections may develop in these ... -
Describing a new mechanism of retinal detachment secondary to ophthalmic artery vasospasm following subarachnoid hemorrhage: An experimental study
Fındık, Hüseyin; Kanat, Ayhan; Aydın, Mehmet Dumlu; Çakır, Murteza; Özmen, Sevilay Akalp; Okutucu, Murat; Baykal, Orhan; Sipal, Sare (Thieme Medical Publ Inc, 2019)Background the pterygopalatine ganglion (PPG) and ophthalmic arteries (OpAs) have important roles in ocular autoregulation and retinal and visual functions. the relationship between PPG neuron density, OpA vasospasm, and ... -
Describing a new syndrome in L5-S1 disc herniation: Sexual and sphincter dysfunction without pain and muscle weakness
Akça, Nezih; Özdemir, Bülent; Kanat, Ayhan; Batçık, Osman Ersagun; Yazar, Uygur; Zorba, Orhan Ünal (Medknow Publications, 2014)Context: Little seems to be known about the sexual dysfunction (SD) in lumbar intervertebral disc herniation. Aims: Investigation of sexual and sphincter dysfunction in patient with lumbar disc hernitions. Settings and ... -
A different aspect of the unexpected death of Mozart at the age of 35 years
Kanat, Ayhan; Gasenzer, Elena Romana; Neugebauer, Edmund (Cambridge Univ Press, 2019)The cause of the early death of Wolfgang Amadeus Mozart (1756-1791) at the age of 35 has been the source of much discussion in the medical community. Investigators attributed to Mozart nearly 150 different medical diagnoses. ... -
Does the anesthesia technique of cesarean section cause persistent low back pain after delivery? A retrospective analysis
Kazdal, Hızır; Kanat, Ayhan; Özdemir, Bülent; Özdemir, Vacide; Güvercin, Ali Rıza (Springer, 2022)Objective Cesarean sections (CS) under spinal anesthesia may lead to newly developed low back pain (LBP) after anesthesia. The cause of this pain is still unknown. This subject was investigated. Methods The persistent LBP ... -
The effect of choroidal artery vasospasm on choroid plexus ınjury in subarachnoid hemorrhage: experimental study
AMAÇ: Bu çalışmada, subaraknoid kanamada (SAK) koroid arter vazospazmının koroid pleksusta (KP) iskemik hasar yapıp yapmadığını inceledik. YÖNTEM ve GEREÇLER: Bu çalışma 30 tavşan üzerinde yapıldı. Sekizi kontrol grubu, ... -
The effect of degenerated neuron density of petrosal ganglion on the development of blood pressure variabilities after subarachnoid hemorrhage in a rabbit model: an experimental study
Müslüman, Ahmet Murat; Aydın, Mehmet Dumlu; Yılmaz, Adem; Cansever, Tufan; Kanat, Ayhan; Gündoğdu, Cemal; Aydın, Nazan (2011)AMAÇ: Bu çalışmanın amacı, subaraknoid kanama (SAK) sonrası, glossofaringeal sinir petrozal ganglion iskemik nörodejenerasyonu ve KB dalgalanmaları arasındaki ilişkiyi belirlemektir. YÖNTEM ve GEREÇLER: Yirmi dört tavşanın ...
