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Featured researches published by Zerrin Yigit.


American Journal of Cardiology | 2008

Efficacy and Tolerability of Fluvastatin XL 80 mg Alone, Ezetimibe Alone, and the Combination of Fluvastatin XL 80 mg With Ezetimibe in Patients With a History of Muscle-Related Side Effects With Other Statins

Evan A. Stein; Christie M. Ballantyne; Eberhard Windler; Per Anton Sirnes; Andrey Sussekov; Zerrin Yigit; Claudia Seper; Claudio Gimpelewicz

Although statin treatment is generally well tolerated, it is estimated that 5% to 10% of patients develop muscle-related side effects (MRSEs), resulting in less effective nonstatin alternatives or cessation of lipid-lowering therapy completely. This study was designed to assess the efficacy and tolerability of extended-release fluvastatin (fluvastatin XL) and ezetimibe alone or in combination in patients with previous MRSEs with other statins. This was a double-blinded, double-dummy trial of 199 mostly moderate- or high-risk dyslipidemic patients randomized to fluvastatin XL 80 mg/day (n = 69), ezetimibe 10 mg/day (n = 66), or fluvastatin XL 80 mg/day plus ezetimibe 10 mg/day (n = 64) for 12 weeks. Fluvastatin XL lowered low-density lipoprotein (LDL) cholesterol by 32.8% compared with 15.6% with ezetimibe (between-group difference -17.1%, 95% confidence interval -23.6 to -10.7, p <0.0001); the fluvastatin XL/ezetimibe combination lowered LDL cholesterol by 46.1% (between-group difference vs ezetimibe -30.4%, 95% confidence interval -37.0 to -23.8, p <0.0001). Proportions of patients achieving their National Cholesterol Education Program Adult Treatment Panel III target LDL cholesterol were 84% with the fluvastatin XL/ezetimibe combination, 59% with fluvastatin XL, and 29% with ezetimibe (p <0.001 for fluvastatin XL monotherapy or combination therapy vs ezetimibe monotherapy). Incidences of MRSEs were 24% in the ezetimibe group, 17% in the fluvastatin XL group, and 14% in the combination group. There were no instances of creatine kinase increases >or=10 times upper limit of normal. In conclusion, in patients with a history of statin-associated MRSEs, fluvastatin XL alone or in combination with ezetimibe offers an effective and well-tolerated lipid-lowering option.


Echocardiography-a Journal of Cardiovascular Ultrasound and Allied Techniques | 2007

Clinical and Echocardiographic Risk Factors for Embolization in the Presence of Left Atrial Thrombus

Ela Sahinbas Kavlak; Hayriye Kucukoglu; Zerrin Yigit; Baris Okcun; Türker Baran; Alev Arat Ozkan; Serdar Kucukoglu

Aims: The aim of our study was to evaluate the factors leading to embolization in patients with left atrial thrombi (LAT). With this purpose, we retrospectively analyzed clinical, transthoracic, transesophageal echocardiographic data of patients with LAT in the transesophageal echocardiographic evaluation. Methods and Results: One hundred ninety‐two patients with LAT not on anticoagulant therapy were divided into two groups according to the presence of prior ischemic stroke. The group with ischemic stroke included more patients with sinus rhythm and less patients with mitral stenosis. They had smaller left atrial diameter, more left atrial appendage spontaneous echo‐contrast, higher appendage ejection fraction, and emptying velocity. Conclusion: Once the thrombus has been formed, cerebral embolization seems to be higher in patients with relatively preserved appendage ejection fraction and emptying velocity. Presence of atrial appendage spontaneous echo‐contrast also favor embolization. Factors leading to embolization seem to differ in some respects from the causes of thrombus formation.


Angiology | 2014

Relationship Between Increased Serum Resistin Level and Severity of Coronary Artery Disease

Ümit Yaşar Sinan; İsmail Polat Canbolat; Onur Baydar; Veysel Oktay; Gürkan İmre; Cuneyt Kocas; Okay Abaci; Ugur Coskun; Cem Bostan; Kadriye Orta Kilickesmez; Ahmet Yildiz; Ayşem Kaya; Tevfik Gürmen; Zerrin Yigit

Resistin, which is derived from the gene of RSTN, belongs to a family of cysteine-rich secretory proteins called resistin-like molecules (RELMs). Increased serum resistin levels are associated with coronary artery disease (CAD) and the risk of cardiovascular death. Patients (n = 214) with an initial diagnosis of stable angina pectoris, unstable angina pectoris, and myocardial infarction without ST-segment elevation and referred to catheter laboratory for coronary angiography were enrolled in the study. We aimed to investigate the relationship between increased serum resistin level and CAD. The severity of CAD was calculated by the Gensini scoring system. In conclusion, we established a significant correlation between serum resistin levels and CAD (P = .010). Also, serum resistin levels correlated with the Gensini score that represents the severity of CAD angiographically (P = .010).


Angiology | 2015

Beneficial effects of rosuvastatin treatment in patients with metabolic syndrome.

Cem Bostan; Ahmet Yildiz; Alev Arat Ozkan; Isil Uzunhasan; Ayşem Kaya; Zerrin Yigit

We determined the effect of 6-month rosuvastatin treatment on blood lipids, oxidative parameters, apolipoproteins, high-sensitivity C-reactive protein, lipoprotein(a), homocysteine, and glycated hemoglobin (HbA1c) in patients with metabolic syndrome (MetS). Healthy individuals (men aged >40 years and postmenopausal women) with a body mass index ≥30 (n = 100) who fulfilled the National Cholesterol Education Program Adult Treatment Panel III diagnostic criteria for MetS were included. Total cholesterol and low-density lipoprotein cholesterol (LDL-C) levels decreased (P < .0001). The change in LDL 1 to 3 subgroups was significant (P = .0007, P < .0001, and P = .006, respectively). Changes in LDL 4 to 7 subgroups were not significant. There was a beneficial effect on oxidized LDL, fibrinogen, homocysteine, and HbA1c. Rosuvastatin significantly increased high-density lipoprotein levels (P = .0003). The oxidant/antioxidant status and subclinical inflammatory state were also beneficially changed. Rosuvastatin had a significant beneficial effect on atherogenic dyslipidemia as well as on oxidative stress and inflammatory biomarkers in patients with MetS.


Metabolic Syndrome and Related Disorders | 2010

Oxidative status and lipid profile in metabolic syndrome: gender differences.

Ayşem Kaya; Isil Uzunhasan; Murat Baskurt; Alev Arat Ozkan; Esra Ataoglu; Baris Okcun; Zerrin Yigit

BACKGROUND Metabolic syndrome is associated with cardiovascular disease and oxidative stress. The aim of this study was to investigate the differences of novel oxidative stress parameters and lipid profiles in men and women with metabolic syndrome. METHODS The study population included 88 patients with metabolic syndrome, consisting of 48 postmenauposal women (group I) and 40 men (group II). Premenauposal women were excluded. Plasma levels of total antioxidant status (TAS) and total oxidative status (TOS) were determined by using the Erel automated measurement method, and oxidative stress index (OSI) was calculated. To perform the calculation, the resulting unit of TAS, mmol Trolox equivalent/L, was converted to micromol equivalent/L and the OSI value was calculated as: OSI = [(TOS, micromol/L)/(TAS, mmol Trolox equivalent/L) x 100]. The Student t-test, Mann-Whitney-U test, and chi-squared test were used for statistical analysis; the Pearson correlation coefficient and Spearman rank test were used for correlation analysis. P < or = 0.05 was considered to be statistically significant. RESULTS Both women and men had similar properties regarding demographic characteristics and biochemical work up. Group II had significantly lower levels of antioxidant levels of TAS and lower levels of TOS and OSI compared with group I (P = 0.0001, P = 0.0035, and P = 0,0001). Apolipoprotein A (ApoA) levels were significantly higher in group I compared with group II. CONCLUSIONS Our findings indicate that women with metabolic syndrome have a better antioxidant status and higher ApoA levels compared with men. Our findings suggest the existence of a higher oxidative stress index in men with metabolic syndrome. Considering the higher risk of atherosclerosis associated with men, these novel oxidative stress parameters may be valuable in the evaluation of patients with metabolic sydrome.


Clinical Rehabilitation | 2016

Effects of inspiratory muscle training on pulmonary function, respiratory muscle strength and functional capacity in patients with atrial fibrillation: a randomized controlled trial:

Melih Zeren; Rengin Demir; Zerrin Yigit; Hulya Nilgun Gurses

Objective: To investigate the effects of inspiratory muscle training on pulmonary function, respiratory muscle strength and functional capacity in patients with atrial fibrillation. Design: Prospective randomized controlled single-blind study. Setting: Cardiology department of a university hospital. Subjects: A total of 38 patients with permanent atrial fibrillation were randomly allocated to either a treatment group (n = 19; age 66.2 years (8.8)) or a control group (n = 19; age 67.1 years (6.4)). Methods: The training group received inspiratory muscle training at 30% of maximal inspiratory pressure for 15 minutes twice a day, 7 days a week, for 12 weeks alongside the standard medical treatment. The control group received standard medical treatment only. Spirometry, maximal inspiratory and expiratory pressures and 6-minute walking distance was measured at the beginning and end of the study. Results: There was a significant increase in maximal inspiratory pressure (27.94 cmH2O (8.90)), maximal expiratory pressure (24.53 cmH2O (10.34)), forced vital capacity (10.29% (8.18) predicted), forced expiratory volume in one second (13.88% (13.42) predicted), forced expiratory flow 25%–75% (14.82% (12.44) predicted), peak expiratory flow (19.82% (15.62) predicted) and 6-minute walking distance (55.53 m (14.13)) in the training group (p < 0.01). No significant changes occurred in the control group (p > 0.05). Conclusion: Inspiratory muscle training can improve pulmonary function, respiratory muscle strength and functional capacity in patients with atrial fibrillation.


Blood Pressure | 2002

The efficacy of valsartan in essential hypertension and its effects on left ventricular hypertrophy.

Haşim Mutlu; Hakan Özhan; Baris Okcun; Ertugrul Okuyan; Zerrin Yigit; Cennet Erbaş; M. Serdar Küçükoğlu; Nazmi Gültekin; Sinan Üner; Serap Erdine; Özen Güven

Recent studies demonstrate that, treatment with angiotensin-converting enzyme (ACE) inhibitors and angiotensin-II receptor blockers may decrease left ventricular hypertrophy (LVH) in hypertensive patients. We wanted to assess the efficacy of valsartan on echocardiographic variables of LVH in 30 mild to moderate hypertensive patients. Valsartan was found effective in controlling hypertension, also echocardiographic indices of LVH such as interventricular septum and posterior wall thickness were reduced and left ventricular mass decreased significantly. Thus valsartan favorably influences cardiac structure in hypertensive patients.


Journal of International Medical Research | 2018

Relationship of respiratory muscle strength, pulmonary function, and functional capacity with quality of life in patients with atrial fibrillation

Rengin Demir; Melih Zeren; Hulya Nilgun Gurses; Zerrin Yigit

Objective To examine the relationship of pulmonary parameters and functional capacity with quality of life (QoL) in patients with atrial fibrillation (AF). Methods Thirty-six patients with chronic AF were included in this cross-sectional study. QoL was assessed with the Medical Outcomes Survey 36-item Short Form (SF-36) and Minnesota Living with Heart Failure Questionnaire (MLHFQ). Respiratory muscle strength and pulmonary function were also measured. Functional capacity was assessed with the 6-min walk test (6MWT). The Borg CR10 Scale was used to determine the resting dyspnea and fatigue levels. Results The SF-36 physical component summary score was correlated with the maximum inspiratory pressure (r = 0.517), maximum expiratory pressure (r = 0.391), 6MWT distance (r = 0.542), resting Borg dyspnea score (r = −0.692), and resting Borg fatigue score (r = −0.727). The MLHFQ total score was correlated with the maximum inspiratory pressure (r = −0.542), maximum expiratory pressure (r = −0.384), 6MWT distance (r = −0.535), resting Borg dyspnea score (r = 0.641), and resting Borg fatigue score (r = 0.703). The resting Borg fatigue score was the significant independent predictor of the SF-36 physical component score and the MLHFQ total score. Conclusion Respiratory muscle strength, functional capacity measured with the 6MWT, and resting symptoms including dyspnea and fatigue may have an impact on QoL in patients with AF.


Journal of Cardiovascular Pharmacology and Therapeutics | 2018

Efficacy and Safety of S-Amlodipine 2.5 and 5 mg/d in Hypertensive Patients Who Were Treatment-Naive or Previously Received Antihypertensive Monotherapy:

Selçuk Şen; Meral Demir; Zerrin Yigit; Ali Yağız Üresin

The aim of the present study was to evaluate the efficacy and safety of S-amlodipine 2.5 and 5 mg/d in patients with hypertension who were treatment-naive or previously received antihypertensive monotherapy. During the 8-week treatment period, all patients received S-amlodipine 2.5 mg/d for the first 4 weeks, followed by S-amlodipine 5 mg/d for the second 4 weeks. For efficacy assessments, ambulatory and office blood pressure (BP) measurements were performed during the baseline, fourth-week, and eighth-week visits. For safety assessments, all adverse events and abnormal laboratory findings were recorded. This study is registered with ClinicalTrials.gov (NCT03038451). Of 43 patients evaluated at the screening visit, 33 were enrolled. In the treatment-naive arm, significant reductions in both office and ambulatory systolic BP (SBP) and diastolic BP (DBP) were observed with S-amlodipine 2.5 mg/d and additional significant reductions were achieved with dose titration (S-amlodipine 5 mg/d). At the end of the study, the rate of the treatment-naive patients with BP under control (SBP/DBP <140/90 mm Hg) was 53% with S-amlodipine 2.5 mg and increased to 78% with S-amlodipine 5 mg. For the noninferiority evaluation, S-amlodipine 2.5 and 5 mg/d treatments were generally noninferior to both office and ambulatory BP levels achieved with the medications that the patients received before participating in the study. Five nonserious adverse events likely to be associated with the study drug were observed. No serious adverse event was encountered. Consequently, S-amlodipine can be suggested as an effective and safe treatment option for patients with hypertension.


Archives of the Turkish Society of Cardiology | 2017

Clinical practices of the management of nonvalvular atrial fibrillation and outcome of treatment: A representative prospective survey in tertiary healthcare centers across Turkey

Bülent Özin; Kudret Aytemir; Özgür Aslan; Turkay Ozcan; Mehmet Kanadaşı; Mesut Demir; Mustafa Gökçe; Mehmet Murat Sucu; Murat Özdemir; Zerrin Yigit; Mustafa Yavuzkir; Ali Oto

OBJECTIVE The goal of this study was to define clinical practice patterns for assessing stroke and bleeding risks and thromboprophylaxis in nonvalvular atrial fibrillation (NVAF) and to evaluate treatment outcomes and patient quality of life. METHODS A clinical surveillance study was conducted in 10 tertiary healthcare centers across Turkey. Therapeutic approaches and persistence with initial treatment were recorded at baseline, the 6th month, and the 12th month in NVAF patients. RESULTS Of 210 patients (57.1% male; mean age: 64.86±12.87 years), follow-up data were collected for 146 patients through phone interviews at the 6th month and 140 patients at the 12th month. At baseline, most patients had high CHADS2 score (≥2: 48.3%) and CHA2DS2-VASc (≥2: 78.7%) risk scores but a low HAS-BLED (0-2: 83.1%) score. Approximately two-thirds of the patients surveyed were using oral anticoagulants as an antithrombotic and one-third were using antiplatelet agents. The rate of persistence with initial treatment was approximately 86%. Bleeding was reported by 22.6% and 25.0% of patients at the 6th and 12th month, respectively. The proportion of patients with an INR of 2.0-3.0 was 41.8% at baseline, 65.7% at the 6th month, and 65.9% at the 12th month. The time in therapeutic range was 61.0% during 1 year of follow-up. The median EuroQol 5-dimensional health questionnaire (EQ-5D) score of the patients at baseline and the 12th month was 0.827 and 0.778, respectively (p<0.001). The results indicated that patient quality of life declined over time. CONCLUSION In atrial fibrillation, despite a high rate of persistence with initial treatment, the outcomes of stroke prevention and patient quality of life are not at the desired level. National health policies should be developed and implemented to better integrate international guidelines for the management of NVAF into clinical practice.

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