Mehmet Demir

ORCID: 0000-0003-2216-6258
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About
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Research Areas
  • Retinal Diseases and Treatments
  • Glaucoma and retinal disorders
  • Retinal and Optic Conditions
  • Retinal Imaging and Analysis
  • Atrial Fibrillation Management and Outcomes
  • Cardiovascular Function and Risk Factors
  • Cardiac Valve Diseases and Treatments
  • Liver Disease Diagnosis and Treatment
  • Acute Myocardial Infarction Research
  • Intraocular Surgery and Lenses
  • Retinal and Macular Surgery
  • Venous Thromboembolism Diagnosis and Management
  • Cardiac tumors and thrombi
  • Cardiac Arrhythmias and Treatments
  • Nasolacrimal Duct Obstruction Treatments
  • Traumatic Ocular and Foreign Body Injuries
  • Cardiovascular Disease and Adiposity
  • Inflammatory Biomarkers in Disease Prognosis
  • Ophthalmology and Visual Impairment Studies
  • Kawasaki Disease and Coronary Complications
  • Cardiac Structural Anomalies and Repair
  • Retinal Development and Disorders
  • Corneal surgery and disorders
  • Vascular Malformations Diagnosis and Treatment
  • Aortic Disease and Treatment Approaches

Şişli Etfal Eğitim ve Araştırma Hastanesi
2013-2023

Sağlık Bilimleri Üniversitesi
2018-2022

Bursa Yuksek Ihtisas Egitim Ve Arastirma Hastanesi
2013-2022

Bursa Technical University
2014-2021

Isparta University of Applied Sciences
2009-2020

Istanbul University
2015

Istanbul Medipol University
2015

Kafkas University
2015

University of Pecs
2015

Cukurova University
2015

Vitamin D deficiency is associated with cardiovascular disease such as coronary artery disease, heart failure, and hypertension. activates the renin-angiotensin-aldosterone system, which affects system. For this reason, it could be suggested that there a relationship between vitamin atrial fibrillation (AF). In our study, we compared 25-hydroxyvitamin (25-OHD) levels nonvalvular AF, valvular control groups in sinus rhythm.A total of 102 patients chronic AF without any other (mean age 62.51 ±...

10.1177/1076029612453762 article EN Clinical and Applied Thrombosis/Hemostasis 2012-07-23

Non-dipper hypertension is associated with increased cardiovascular morbidity and mortality. Neutrophil/lymphocyte ratio (NLR) has been poor outcomes in patients diseases. However, little known about the role of NLR non-dipper hypertension. In this study, between dipper hypertensive was compared.This study included 80 patients. Hypertensive were divided into two groups: 50 (29 male, mean age 51.5 ± 8 years) 30 (17 50.6 5.4 years). Transthoracic echocardiography ambulatory 24-hour blood...

10.3109/10641963.2013.764893 article EN Clinical and Experimental Hypertension 2013-02-06

The aim of the following study is to evaluate retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) thickness in patients with type 2 diabetes mellitus (DM).Average, inferior, superior values RNFL GCC were measured 123 using spectral domain optical coherence tomography. participants DM compared controls. Diabetic collected Groups 1, 3. Group 1 = 33 who had no diabetic retinopathy (DR); 30 mild nonproliferative DR 3 moderate non-proliferative DR. healthy 4. Analysis variance test a...

10.4103/0301-4738.136234 article EN cc-by-nc-sa Indian Journal of Ophthalmology 2014-01-01

Vitamin D deficiency actives renin-angiotensin-aldosterone system (RAAS) which affects cardiovascular system. Activation of RAAS is associated with pulmonary hypertension (PHT). Relation between vitamin and PHT could be therefore suggested. In our study we compared artery pressure control groups. 115 consecutive patients (average age: 61.86 ± 5.86) who have detected very low (vitamin levels < 10 ng/ml) were enrolled. 117 age matched persons 61.74 5.99) selected as the group. All groups...

10.14712/23362936.2014.17 article EN cc-by Prague Medical Report 2013-01-01

Phacoemulsification surgery may have beneficial effects on the quality of life patients with senile cataract. These can be evaluated help questionnaires and tests.

10.1177/25158414211063293 article EN cc-by-nc Therapeutic Advances in Ophthalmology 2022-01-01

To evaluate the retinal nerve fiber layer (RNFL) thickness in patients with chronic renal failure (CRF) without diabetes mellitus by using optical coherence tomography (OCT).Sixty-six eyes of 33 CRF were evaluated. Eighteen have been treated hemodialysis (group 1) and 15 peritoneal dialysis 2). The RNFL thicknesses assessed before after group 1. None these had mellitus. Forty 20 age-matched normal control subjects 3. An protocol was used to acquire circular scans 3.4 mm diameter around optic...

10.1177/112067210901900621 article EN European Journal of Ophthalmology 2009-11-01

The inspection of foveal and parafoveal thickness in healthy pregnant women the last trimester.This study included 40 their trimester (study group: women, 80 eyes) 37 nonpregnant (control 74 eyes). Visual acuity, intraocular pressure, slit lamp examination anterior posterior segments, visual field with automated perimetry were performed both groups. Foveal four quadrants (upper, nasal, temporal, inferior parafoveal) peripapillary retinal nerve fiber layer measured by optical coherence...

10.2147/opth.s23944 article EN cc-by-nc Clinical ophthalmology 2011-09-01

Nondipper hypertension is associated with increased cardiovascular morbidity and mortality. Vitamin D deficiency diseases such as coronary artery disease, heart failure, hypertension. activates the renin–angiotensin–aldosterone system, which affects system. For this reason, a relationship between vitamin nondipper could be suggested. In study, we compared 25-OH levels dipper hypertensive patients. The study included 80 patients they were divided into two groups: 50 (29 male, mean age 51.5 ±...

10.3109/10641963.2012.689045 article EN Clinical and Experimental Hypertension 2012-05-17

Hepatitis secondary to infection with the hepatitis C virus (HCV) is one of most common causes viral worldwide. Multiple extrahepatic manifestations HCV have been recognized. Dilated and hypertrophic cardiomyopathy associated recently described in literature; however, effect on left ventricular systolic diastolic functions unknown. Therefore, this study we aimed examine patients.The included 50 anti-HCV positive patients persons for control groups. We performed transthorasic echocardiography...

10.1097/smj.0b013e31822462e2 article EN Southern Medical Journal 2011-07-21

The aim of this study was to evaluate the association between an increase in arterial stiffness and development left ventricular hypertrophy essential hypertension patients.One hundred forty patients were included study. Patients divided into two groups based on echocardiographic measurements; with (n=70) without (n=70). criterion for accepted as intraventricular septum posterior wall thickness diastole 11 mm or above. Aortic values measured noninvasively by arteriography through brachial...

10.4149/bll_2015_140 article EN Bratislavské lekárske listy/Bratislava medical journal 2015-01-01

Objective: To evaluate short term changes in anterior chamber depth (ACD), central corneal thickness (CCT), intraocular pressure (IOP), and endothelial cell density (ECD) after intravitreal anti-vascular growth factor (VEGF) injections.Materials methods: A total of 100 eyes from patients, who were naive for injection treatment, included this retrospective study. Patients received only a single type anti-VEGF injections (bevacizumab, ranibizumab, or aflibercept) two consecutive months...

10.1080/15569527.2019.1616749 article EN Cutaneous and Ocular Toxicology 2019-05-16

Purpose: To present the functional and anatomic changes after intravitreal bevacizumab in eyes with macular edema (ME) due to branch retinal vein occlusion (BRVO). Design: The study was a retrospective study. Materials methods: included 31 patients ME BRVO. We compared examination findings of before therapy at 12 months. who had secondary BRVO treated bevacizumab. started first week occlusion. initial three injections monthly intervals 1.25/0.05 mL Patients baseline visual acuity less than...

10.2147/opth.s19279 article EN cc-by-nc Clinical ophthalmology 2011-06-01

Non-dipper hypertension is associated with increased cardiovascular morbidity and mortality. Several studies have suggested that the interval from peak to end of electrocardiographic T wave (Tp-e) may correspond transmural dispersion repolarization Tp-e Tp-e/QT ratio are malignant ventricular arrhythmias. The aim this study was evaluate by using in patients non-dipper hypertension.This included 80 hypertensive patients. Hypertensive were divided into two groups: 50 dipper (29 male, mean age...

10.3109/10641963.2013.810233 article EN Clinical and Experimental Hypertension 2013-07-12

Background: Nondipper hypertension is associated with increased cardiovascular morbidity and mortality. Speckle tracking echocardiography a novel promising tool for detecting early changes in left atrial (LA) myocardial dysfunction. Our aim was to evaluate the LA mechanical function stiffness nondipper hypertensive patients by two-dimensional speckle strain parameters. Method: This study included 80 patients. Hypertensive were divided into two groups: 50 dipper (29 male, mean age 51.5 ± 8...

10.1080/10641963.2016.1246566 article EN Clinical and Experimental Hypertension 2017-05-17

Takayasu's, or “pulseless,” disease is a rare, idiopathic, chronic granulomatous vasculitis that affects large arterial blood vessels. Ocular manifestations occur as consequence of obliteration the carotid artery, and ocular ischemia may develop. A 14-year-old girl with progressive visual loss ischemic syndrome secondary to Takayasu's described. [J Pediatr Ophthalmol Strabismus 2010;47:54–57.]

10.3928/01913913-20100106-13 article EN Journal of Pediatric Ophthalmology & Strabismus 2010-01-01

Aim. To compare the retinal nerve fiber layer (RNFL) thickness between women with polycystic ovary syndrome (PCOS) and healthy women. Materials Methods. The study included 88 eyes of 44 (group 1) PCOS 84 42 2). In all subjects, RNFL ganglion cell complex (GCC) thicknesses were measured by optical coherence tomography (OCT). addition, visual acuity (VA), intraocular pressure (IOP), refractive errors, central macular (CMT), corneal (CCT), excavation optic disc evaluated in subjects. Results....

10.1155/2013/752186 article EN cc-by Journal of Ophthalmology 2013-01-01

Atrial fibrillation (AF) is the most common cardiac rhythm disorder. causes a 5-fold increased risk for thromboembolic stroke. It known that eosinophils play an important role in thrombosis. We aimed to compare number of eosinophil counts patients with and without thrombi left atrium (LA) or atrial appendage (LAA) ascertain association presence thrombi.The study included 89 diagnosed persistent AF who underwent transesophageal echocardiography designated undergo cardioversion. The were...

10.1177/1076029613483208 article EN Clinical and Applied Thrombosis/Hemostasis 2013-03-27

An increase in macular thickness due to fluid accumulation the macula patients with diabetes mellitus. Optical coherence tomography (OCT) has been shown be highly reproducible measuring normal individuals and diabetic patients. OCT can detect subtle changes of thickness. The aim this study is compare central (CMT) type 2 without clinical retinopathy controls, order assess possible increased associated mellitus.Optical measurements were performed 124 eyes 62 subjects mellitus clinically...

10.1186/1471-2415-13-11 article EN cc-by BMC Ophthalmology 2013-04-09

We evaluated the effect of intravitreal bevacizumab (IVB) injection before pars plana vitrectomy (PPV) on hemorrhage (VH) during and after for postoperative first day month in pseudophakic patients with proliferative diabetic retinopathy (PDR). This retrospective study was performed 44 eyes who underwent PDR. Patients were divided into PPV (n = 22 eyes) + IVB groups. Injection (1.25 mg/0.05 mL) 3 days vitrectomy. Outcomes visual acuity as well intraoperative VH compared between two One...

10.4137/oed.s12352 article EN cc-by-nc Ophthalmology and Eye Diseases 2013-01-01

10.1016/j.rbmo.2024.104531 article EN Reproductive BioMedicine Online 2024-11-01
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