Semih Gıray

ORCID: 0000-0002-0722-3181
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About
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Research Areas
  • Acute Ischemic Stroke Management
  • Cerebrovascular and Carotid Artery Diseases
  • Stroke Rehabilitation and Recovery
  • Venous Thromboembolism Diagnosis and Management
  • Neurological and metabolic disorders
  • Cardiovascular Health and Disease Prevention
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Intracranial Aneurysms: Treatment and Complications
  • Nutrition and Health in Aging
  • Prion Diseases and Protein Misfolding
  • Moyamoya disease diagnosis and treatment
  • Inflammatory Biomarkers in Disease Prognosis
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Aortic Disease and Treatment Approaches
  • Parathyroid Disorders and Treatments
  • Neurological disorders and treatments
  • Cerebrovascular and genetic disorders
  • Reconstructive Surgery and Microvascular Techniques
  • Neurological Complications and Syndromes
  • Pharmacological Effects and Toxicity Studies
  • Anesthesia and Sedative Agents
  • Brain Metastases and Treatment
  • Cardiac and Coronary Surgery Techniques
  • Epilepsy research and treatment
  • Cardiac, Anesthesia and Surgical Outcomes

Gaziantep University
2016-2024

Istanbul Metropolitan Municipality
2022

İstanbul Başakşehir Çam ve Sakura Şehir Hastanesi
2022

Ondokuz Mayıs University
2020

Necmettin Erbakan University
2020

Hacettepe University
2020

Adana Numune Eğitim ve Araştırma Hastanesi
2015-2020

İstanbul Eğitim ve Araştırma Hastanesi
2020

Başkent University
2006-2019

Isparta University of Applied Sciences
2019

Successful recanalization after endovascular stroke therapy (EVT) did not translate into a good clinical outcome in randomized trials. The goal of the study was to identify predictors mechanical thrombectomy with stent retrievers.A retrospective analysis prospectively collected database included consecutive patients treated retrievers. We evaluated influence risk factors for stroke, baseline NIHSS score, Alberta Stroke Program Early CT (ASPECT) rate, onset-to-recanalization and...

10.1155/2015/403726 article EN cc-by The Scientific World JOURNAL 2015-01-01

Background The NeVa™ thrombectomy device (Vesalio LLC, Nashville, USA) has been reported to succeed in large vessel occlusion animal, in-vitro, and clinical studies. Designed with Drop Zone technology, a closed distal tip, strong expansive radial force, the demonstrated particular efficiency resistant “white” thrombi preclinical research. Our goal is determine safety performance of this novel stent retriever on first-pass rates overall recanalization. Methods Interventional Neurology...

10.1177/1591019920938223 article EN Interventional Neuroradiology 2020-07-02

In a minority of cases, the transfemoral approach cannot be performed due to unfavorable anatomical barriers. such direct common carotid artery puncture (DCCAP) is an important alternative for rescue mechanical thrombectomy. The purpose this study was evaluate efficacy and safety DCCAP in patients with unaccessible femoral route thrombectomy.This retrospective using data Turkish Interventional Neurology Database recorded between January 2015 April 2019. Twenty-five acute stroke treated were...

10.5469/neuroint.2020.00010 article EN cc-by-nc Neurointervention 2020-05-26

Glucagon-like peptide-1 (GLP-1) originates from the gastrointestinal system in response to presence of nutrition intestinal lumen and potentiates postprandial insulin secretion. Also, it acts as an immune-modulator which has influences on cell-mediated immunity.The study was designed a prospective, single-blinded carried out neurology intensive care unit (ICU) university hospital. Twenty-four naive patients with acute thromboembolic cerebrovascular events, National Institute Health (NIH)...

10.1186/cc12795 article EN cc-by Critical Care 2013-06-20

BACKGROUND The aim of this study was to investigate the association between mean platelet volume (MPV), C-reactive protein (CRP), and prognosis in patients with acute ischemic stroke (AIS) following intravenous (IV) thrombolytic treatment. MATERIAL AND METHODS A retrospective clinical included 129 within 4.5 hours from onset AIS, who received IV Clinical data were retrieved electronic medical records. MPV, CRP, National Institutes Health (NIH) Stroke Scale modified Rankin (MRS) scores for...

10.12659/msm.906813 article EN Medical Science Monitor 2018-06-05

Objectives: Subarachnoid hemorrhage (SAH) frequently prolongs QT interval in the acute phase. The purpose of our study is to investigate whether correlation between electrocardiographic corrected and clinical severity SAH depends on QTc formula used. Methods: We retrospectively studied 52 consecutive subjects with nontraumatic (extravasation blood into spaces covering central nervous system that are filled cerebrospinal fluid) who were admitted within first day SAH. intervals measured a...

10.1111/j.1540-8159.2007.00895.x article EN Pacing and Clinical Electrophysiology 2007-12-01

Background: We investigated the associations of Recurrent Ischemic Stroke (RIS) and Hemorrhagic Transformation (HT) with CKD in acute ischemic stroke patients. Method: The subjects were 160 patients, divided into two groups: eGFR <60 mL/min/1.73 m2 (CKD), ≥60 (without CKD). Results: Subjects having DM (p = 0.018), 0.025) treated ACEI/ARB 0.039) revealed association RIS. Regression analysis disclosed only 0.04). Carotid artery stenosis 0.030) serum calcium levels 0.013) showed significant HT....

10.3109/0886022x.2013.846794 article EN Renal Failure 2013-10-29

Patients with carbon monoxide (CO) intoxication may show neurological signs such as headache, seizures, extrapyramidal findings, and coma. However, cortical blindness is rare in these cases. This study describes a woman exhibiting confusion axial rigidity after CO intoxication. Ten days intoxication, her pupils were isonormocoric reactive to light. A fundoscopic examination was normal, but visual acuity light-perception both eyes. There diffuse EEG slow waves. Magnetic resonance imaging...

10.1080/00207450490512722 article EN International Journal of Neuroscience 2005-01-01

Contrast agents are associated with a number of adverse effects, including central nervous system effects. These primarily filtered and excreted by the kidney. Contrast-associated encephalopathy is rare complication. We report case 55-year-old male on chronic hemodialysis who developed confusion agitation after receiving ioversol during abdominal angiography. Although was performed his healing took 15 days. Patients end-stage renal disease may be at an increased risk effects contrast agents.

10.3109/0886022x.2010.510613 article EN Renal Failure 2010-09-23

In this study, we wanted to investigate the effect of antiplatelet and anticoagulant use on success mechanical thrombectomy in acute ischemic stroke cases.174 patients who were brought Stroke Center Gaziantep University Şahinbey Research Practice Hospital between January 2018 February 2019 due underwent retrospectively analyzed. The demographic characteristics, antiplatelet/anticoagulant before mTICI (modified-Throm-bolysis-In-Cerebral-Infarction) scores used for reperfusion evaluated....

10.18071/isz.75.0105 article HU Ideggyógyászati Szemle 2022-01-01

We evaluated the predictive factors of symptomatic intracranial hemorrhage (SICH) in endovascular treatment stroke. included 975 ischemic stroke patients with anterior circulation occlusion. Patients that had and an increase ≥4 points their National Institutes Health Stroke Scale (NIHSS) after were considered as SICH. The mean age was 65.2±13.1 years 469 (48.1%) women. median NIHSS 16 (13-18) Alberta Program Early CT 9 (8-10). In 420 (43.1%), modified Rankin favorable (0-2) mortality...

10.1177/00033197221082711 article EN Angiology 2022-03-06

Background Inflammatory response plays an important role in the process of ischemic stroke. Rapid, sustained and complete reperfusion is most modifiable prognostic factor for a favorable clinical outcome patients receiving endovascular treatment (EVT). The studies related to clot contents regarding high level leukocyte clots that are difficult recanalize quite remarkable. We aimed investigate relationship between Neutrophil lymphocyte ratio recanalization at first pass thrombectomy.Methods...

10.1080/00207454.2020.1838513 article EN International Journal of Neuroscience 2020-10-17

Hypertension impairs cerebral vascular function. Vasodilator-stimulated phosphoprotein (VASP) mediates active reorganization of the cytoskeleton via membrane ruffling, aggregation and tethering actin filaments. VASP regulation endothelial barrier function has been demonstrated by studies using VASP(-/-) animals under conditions associated with tissue hypoxia. We hypothesize that hypertension regulates expression and/or phosphorylation in cells, thereby contributing to dysfunction...

10.3109/00207454.2014.930740 article EN International Journal of Neuroscience 2014-06-04

Increased parathyroid hormone (PTH) level is associated with coronary artery disease, hypertension and left ventricular hypertrophy which are all predisposing factors for the ischemic cerebrovascular event (ICVE). Carotid intima-media thickness (CIMT) aortic distensibility two early, subclinical predictors of atherosclerosis. The relation PTH CIMT in patients ICVE has not been previously studied.Our aim was to study relationship levels ICVE.Sixty-four 50 control group were enrolled study....

10.2174/1871530319666190215150410 article EN Endocrine Metabolic & Immune Disorders - Drug Targets 2019-02-26
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