Kurum Yazarı "Kanat, Ayhan" TF, Dahili Tıp Bilimleri Bölümü Koleksiyonu İçin Listeleme
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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 ... -
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 ... -
Cerebral embolism following thrombolytic therapy for acute myocardial infarction: The second reported case
Bostan, Mehmet; Kanat, Ayhan; Şen, Murat; Kazdal, Hızır; Bostan, Habib (South African Medical Association, 2010)ST-elevation myocardial infarction (STEMI), caused by acute occlusion of the infarct-related coronary artery, is an emergency condition. The primary therapy is restoration of full antegrade flow by either percutaneus ... -
Changes in retinal nerve fiber layer thickness may be the cause of post-COVID-19 headaches
Gel, Mehmet Selim; Kanat, Ayhan; Şeker, Demet; Koç, Hakan; Daltaban, İskender Samet; Fındık, Hüseyin; Gündoğdu, Ömer Lütfi (Taylor & Francis Ltd., 2024)ObjectiveThe prevalence of post-COVID headaches is not low. The eye can be affected by this infection, but it is not clear yet what the relationship is between persistent headaches and the thickness of the retinal nerve ... -
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 ... -
Could the cerebral involvement of COVID-19 disease be related to microstructural changes that are not reflected in conventional MRI images?
Çeliker, Fatma Beyazal; Kanat, Ayhan; Turan, Arzu; Beyazal, Mehmet; Burakgazi, Gülen; Hürsoy, Nur; Gündoğdu, Hasan; Polat, Hatice Beyazal (Gale Academic Onefile, 2023)In patients with COVID-19, neurodegeneration may develop before clinical symptoms appear. Diffusion-weighted (DW) MRI is an important technique for analyzing microstructural changes such as gliosis. In this study, a ... -
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 ... -
First report of perforation of ligamentum flavum by sequestrated lumbar intervertebral disc
Özdemir, Bülent; Kanat, Ayhan; Batçık, Osman Ersegun; Ertürk, Cihangir; Çeliker, Fatma Beyazal; Güvercin, Ali Rıza; Yazar, Uğur (Wolters Kluwer Medknow Publications, 2017)Disc fragments are well known to migrate to superior, inferior, or lateral sites in the anterior epidural space, posterior epidural migrated lumbar disc fragments is an extremely rare disorder, 61 cases have been reported ... -
From nose to lumbar spinal cord; reduced sperm numbers occur by olfactory bulbectomy-releted onuf's nucleus degeneration; new experimental evidence for kallmann syndrome
Yolaş, Coşkun; Kanat, Ayhan; Zeynal, Mete; Şahin, Mehmet Hakan; Karadağ, Mehmet Kürşat; Keleş, Osman Nuri; Akça, Nezih; Dil, Eyüp; Aydın, Mehmet Dumlu; Gündoğdu, Ömer Lütfi (Karger, 2023)Introduction: Olfaction and its relation to human health is an area of growing interest. Although olfaction disorders have been considered a part of Kallmann Syndrome, the role of olfactory dysfunction on spermatogenesis ... -
How does the side of lumbar disc herniation influence the psoas muscle size at the L4-5 level in patients operated for unilateral hip arthroplasty?
Güvercin, Yılmaz; Kanat, Ayhan; Gündoğdu, Hasan; Abdioğlu, Ahmet Atilla; Güvercin, Ali Rıza; Balık, Mehmet Sabri (Taylor & Francis Ltd., 2022)Study Design: Retrospective study. Objection: There can be a relationship between degenerative diseases in the spine and hip. Summary of Background Data: Degenerative diseases in the spine and hip may occur concomitantly. ... -
Interesting different survival status of musicians with malignant cerebral tumors
Gasenzer, Elena Romana; Kanat, Ayhan; Özdemir, Vacide; Rakıcı, Sema Yılmaz; Neugebauer, Edmund (Taylor & Francis Ltd, 2020)Introduction: the education of a musician may have an effect on the neuronal functions and organization of the brain, promote brain plasticity, resulting in functional and structural changes. A variety of malign cerebral ... -
Introducing a new possible predisposing risk factor for odontoid type 2 fractures after cervical trauma; Ponticulus posticus anomaly of C1 vertebra
Özdemir, Bülent; Kanat, Ayhan; Durmaz, Serdar; Batçık, Osman Ersegun; Gündoğdu, Hasan (Elsevier, 2022)Objective: Ponticulus posticus is an anomaly of the atlas. Odontoid fracture type 2 fracture occurs by hyperflexion, hyperextension, lateral flexion, and a combination of these movements. The presence of Ponticulus Posticus ... -
New evidence for causal central Mechanism of hyperglycemia in subarachnoid hemorrhage secondary to ischemic degenerative disruption of circuitry among insular cortex, nodose ganglion, and pancreas: Experimental study
Aydın, Mehmet Dumlu; Kanat, Ayhan; Aydın, Nazan; Kantarcı, Abdulmecit; Ayvaz, Muhammet Ali; Rakıcı, Halil; Yolaş, Coşkun; Kepoğlu, Ümit; Demirci, Elif (Elsevier Science Inc, 2017)INTRODUCTION: Although hyperglycemia is a serious complication of subarachnoid hemorrhage, its pathophysiologic mechanism based on neural circuitry has not been known. - MATERIALS AND METHODS: Twenty-five rabbits were ... -
A novel clinical observation in neuroleptic malignant-like syndrome first demonstration of early progression of hydrocephalus
Kazdal, Hızır; Kanat, Ayhan; Şen, Ahmet; Kırbaş, Serkan; Ardıç, Gizem; Tüfekçi, Ahmet; Ersöz, Tahir (Lippincott Williams & Wilkins, 2015)o the Editors: Neuroleptic malignant syndrome (NMS) is a drug-related disease associated with neuroleptics. Many case reports with NMS were published on various neuroleptic drugs1–6; however, the pathogenesis of NMS is ... -
Overlooked evidence for transmission deficit of pupillary light reflex can be secondary to trigeminal nerve ganglion degeneration following subarachnoid hemorrhage; preliminary experimental study
Şahin, Mehmet Hakan; Kanat, Ayhan; Karadağ, Mehmet Kürşat; Akyüz, Mehmet Emin; Keleş, Osman Nuri; Gündoğdu, Ömer Lütfi; Fındık, Hüseyin; Aydın, Mehmet Dumlu; Gel, Mehmet Selim; Daltaban, İskender Samet (Taylor & Francis Ltd., 2023)Objective: Although the effect of oculomotor and cervical sympathetic networks on pupil diameter is well known; the effect of the trigeminal nerve on pupil diameter has not been investigated yet. This subject was ... -
Paradox in the cubital tunnel syndrome-frequent involvement of left elbow: first report
Kanat, Ayhan; Balık, Mehmet Sabri; Kırbaş, Serkan; Özdemir, Bülent; Köksal, Vaner; Yazar, Uğur; Kazdal, Hızır; Kalaycıoğlu, Ahmet (Springer Wien, 2014)Cubital tunnel syndrome (CuTS) is the second most common compression neuropathy in the arm, but the existence of a compressive cause has not been determined conclusively and the majority of the cases are idiopathic. in ... -
Posterior longitudinal ligament suturation after lumbar discectomy provides postoperative a large intradural area: First report
Batçık, Osman Ersagun; Kanat, Ayhan; Durmaz, Serdar; Özdemir, Bülent; Beyazal, Mehmet (Wolters Kluwer Medknow Publications, 2023)Background: Stability and flexibility of the spine are provided by the posterior longitudinal ligament (PLL). It plays a key role in the pathogenesis of lumbar disc herniation (LDH) by preventing disc protrusion. The effect ... -
Rationalization of using the MR diffusion imaging in B12 deficiency
Polat, Hatice Beyazal; Kanat, Ayhan; Çeliker, Fatma Beyazal; Tüfekçi, Ahmet; Beyazal, Mehmet; Ardıç, Gizem; Turan, Arzu (Wolters Kluwer Medknow Publications, 2020)Context: the structural imaging of brain does not demonstrate any changes in the vast majority of patients with vitamin B12 deficiency, even in the advanced stages. Aims: We investigated the microstructural changes in the ... -
Restoration of anterior vertebral height by short-segment pedicle screw fixation with screwing of fractured vertebra for the treatment of unstable thoracolumbar fractures
Özdemir, Bülent; Kanat, Ayhan; Ertürk, Cihangir; Batçık, Osman Ersagun; Balık, Mehmet Sabri; Yazar, Uğur; Çeliker, Fatma Beyazal; Metin, Yavuz; İnecikli, Mehmet Fatih; Güvercin, Ali Rıza (Elsevier Science Inc, 2017)BACKGROUND: the treatment of unstable thoracolumbar fractures remains controversial. Long-segment pedicle screw constructs may be stiffer and impart greater forces on adjacent segments compared with short-segment constructs. ... -
Transorbital ultrasonographic measurement of optic nerve sheath diameter for intracranial midline shift in patients with head trauma
Kazdal, Hızır; Kanat, Ayhan; Fındık, Hüseyin; Şen, Ahmet; Özdemir, Bülent; Batçık, Osman Ersegun; Yavaşi, Özcan; İnecikli, Mehmet Fatih (Elsevier Science Inc, 2016)OBJECTIVE: Measurement of the optic nerve sheath diameter (ONSD) by using sonography is a straightforward, noninvasive technique to detect an increased intracranial pressure, which can even be conducted at the bedside. ...