Publications by authors named "Ahmet C Aykan"

Aims: Less than 50% of patients treated for hypertension reach a target office systolic blood pressure (SBP). We aimed to evaluate the role of adiposity on antihypertensive drug responses in newly diagnosed hypertensive patients.

Methods: Estimated glomerular filtration rates, body mass index (BMI), skinfold thickness (SFT), body surface areas and waist circumferences of 150 hypertensive patients naïve to treatment were measured.

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Objective: Heart failure is a disease with cardiac dysfunction, and its morbidity and mortality are associated with the degree of dysfunction. The New York Heart Association classifies the heart failure stages based on the severity of symptoms and physical activity. End-tidal carbon dioxide refers to the level of carbon dioxide that a person exhales with each breath.

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Objective: The use of cardiac implantable electronic devices has increased in recent years. It has also brought some issues. Among these, the complications of cardiac implantable electronic devices infection and pocket hematoma are difficult to manage.

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Objective: Severe pulmonary embolism (PE) has a high mortality rate, which can be lowered by thrombolytic therapy (TT). However, full-dose TT is associated with major complications, including life-threatening bleeding. The aim of this study was to explore the efficacy and safety of extended, low-dose administration of tissue plasminogen activator (tPA) on in-hospital mortality and outcomes in massive PE.

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Objective: Cardiac autonomic neuropathy is a serious microvascular complication of type 2 diabetes mellitus that affects a significant portion of patients. Due to decreased parasympathetic activity, the sympathetic nervous system becomes dominant, causing several problems that lead to increased cardiovascular morbidity and mortality. Sodium-glucose cotransporter-2 inhibitors have been shown to reduce sympathetic nervous system activity previously.

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Background: Cardiac autonomic neuropathy is a frequent complication of type 2 diabetes mellitus. Cardiac autonomic neuropathy, in which sympathetic tone predominates over parasympathetic activity, increases both cardiovascular morbidity and mortality and unfortunately has no definitive treatment. Sodium-glucose cotransporter-2 inhibitors have been suggested to reduce sympathetic nervous system activity, based on the results from previous studies.

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Aim    Cardiac autonomic dysfunction is encountered in approximately 25 % of patients with metabolic syndrome (MetS). 24 hr Holter-ECG based heart rate variability (HRV) and heart rate turbulence (HRT) parameters are used to evaluate cardiac autonomic function. We aimed to investigate the relationship between a novel insulin resistance marker, triglyceride glucose (TyG) index and cardiac autonomic dysfunction in patients with MetS.

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Background    Obese non-alcoholic fatty liver disease (NAFLD) was found to increase the risk of developing atrial fibrillation (AF) regardless of the metabolic syndrome subgroups that may accompany it. In this study, the effect of NAFLD on the structural and electrical functions of the heart was investigated using tissue Doppler echocardiography (TDE) in non-obese NAFLD patients without any known risk factors for AF.Material and methods    The study included 43 female patients (31.

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: The patients with intermediate-high risk pulmonary embolism who have acute right ventricular (RV) dysfunction and myocardial injury without overt hemodynamic compromise may be candidates for thrombolytic therapy. Alternative low-dose thrombolytic therapy strategies with prolonged infusion may further decrease the complication rates as its efficacy and safety have been previously proven in the management of prosthetic valve thrombosis. In this study, we aimed to investigate the clinical outcomes of low-dose prolonged thrombolytic therapy regimen in intermediate-high risk pulmonary embolism patients.

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Objective: Renin angiotensinogen system (RAS) inhibitors, ramipril and sacubitril/valsartan are frequently used in the treatment of cardiovascular diseases. Although they are known as contraindicated during pregnancy in hypertensive women, there is not any outcome of their safety in male fertility after exposure to ramipril or sacubitril/valsartan. In this study, we aimed to evaluate the effects of ramipril and sacubitril/valsartan to highlight their safety in the male fertility in normotensive and hypertensive rats.

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Objective Thromboembolic events such as acute coronary syndrome related prosthetic heart valve thrombosis, pulmonary artery embolism and renal artery embolism are a rare condition but a major cause of morbidity and mortality. In this study we discussed low-dose thrombolytic therapy, in patients with thromboembolic events in the intensive care unit.Methods The study was performed on 12 consecutive patients [8 female; 50.

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Background/aim: Radiofrequency catheter ablation (RFA) is the most effective method of supraventricular tachycardia therapy. Recurrent supraventricular tachycardia causes systolic dysfunction and dilated cardiomyopathy. The aim of this study was to evaluate the long-term alterations of atrial and ventricular functions after RFAof typical atrioventricular nodal reentrant tachycardia (AVNRT).

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Objectives: Arterial stiffness is associated with major adverse cardiovascular events. The aim of this study is to investigate arterial stiffness by cardio-ankle vascular index (CAVI) in patients with abdominal aortic aneurysm (AAA).

Methods: This observational and cross-sectional study involved 59 subjects with AAA and 32 healthy subjects.

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Environmental, genetic, oxidative and biochemical factors play an important role in the atherosclerotic process. We investigated the association of serum fibroblast growth factor (FGF-23), klotho, fetuin-A, osteoprotegerin (OPG), osteopontin (OPN) and high-sensitive-CRP (Hs-CRP) markers with coronary artery disease and whether one was superior to others or not. A study group of 52 patients with coronary artery disease (CAD) and a control group of 30 patients with angiographically normal epicardial coronary arteries were included in the study.

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Background: Doxorubicin is an anthracycline chemotherapeutic agent that causes cardiomyopathy as a side effect. Here, we aimed to investigate the effects of linagliptin and bisoprolol on the management of doxorubicin-induced cardiomyopathy in rats.

Methods: Wistar rats were divided into six groups (n = 8).

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Background: Arterial hypertension is associated with cardiovascular morbidity and mortality. It was previously shown that left atrium volume increase associated with mortality and atherosclerotic heart disease. The aim of the present study was to demonstrate the value of endothelial dysfunction in predicting left atrium volume increase in newly diagnosed hypertension patients.

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Introduction: Dietary herbal products taken together with prescription medicines may have harmful effects. In this study, we evaluated the use of dietary herbal supplements and identified factors that predict the concomitant use of these supplements in patients taking drugs prescribed for chronic cardiovascular diseases.

Methods: We performed a cross-sectional study with 343 patients with cardiovascular diseases.

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Background: The data regarding stroke prevention strategies in nonvalvular atrial fibrillation (NVAF) are limited especially in patients with renal impairment (RI). We sought to evaluate management dilemmas in patients with concurrent NVAF and RI in RAMSES (ReAl-life Multicenter Survey Evaluating Stroke Prevention Strategies inTurkey) study.

Methods: We conducted a prospective, multicenter, nation-wide registry in NVAF patients in outpatient cardiology clinics.

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Objective: Gender is an important feature in the management of atrial fibrillation (AF). This study investigated gender-related differences in patients with AF in Turkey.

Methods: As a part of RAMSES (ReAl-life Multicenter Survey Evaluating Stroke prevention strategies in Turkey, NCT02344901) study, information of the patients with AF who successively applied to the hospital was analyzed.

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The definition of non-valvular atrial fibrillation (NVAF) is controversial. We aimed to assess the impact of valvular heart disease on stroke prevention strategies in NVAF patients. The RAMSES study was a multicenter and cross-sectional study conducted on NVAF patients (ClinicalTrials.

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Objective: Data regarding stroke prevention strategies in non-valvular atrial fibrillation (NVAF) are limited to vitamin K antagonists (VKAs). This study aimed to evaluate real-life stroke prevention strategies for NVAF patients in the era of non-VKA oral anticoagulants (NOACs).

Methods: We established a cross-sectional, multicenter, nationwide registry of NVAF patients.

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This study aimed to investigate the potential misuse of novel oral anticoagulants (NOACs) and the physicians' adherence to current European guideline recommendations in real-world using a large dataset from Real-life Multicenter Survey Evaluating Stroke Prevention Strategies in Turkey (RAMSES Study).RAMSES study is a prospective, multicenter, nationwide registry (ClinicalTrials.gov identifier NCT02344901).

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