Publications by authors named "Iosif Koutagiar"

Aims: Three physical signs, namely tendon xanthomas, corneal arcus and xanthelasma, have been associated with heterozygous familial hypercholesterolemia (heFH). The prevalence and clinical significance of these signs are not well established among contemporary heFH individuals. This study explored the frequency as well as the association of these physical signs with prevalent atherosclerotic cardiovascular disease (ASCVD) in heFH individuals.

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Background: Familial hypercholesterolemia (FH) and obesity are well-established risk factors of atherosclerotic cardiovascular disease (ASCVD). Despite high prevalence, their joint association with ASCVD remains largely unknown.

Objective: To investigate the association of obesity with prevalent ASCVD in individuals with heterozygous FH (HeFH) enrolled in the Hellenic Familial Hypercholesterolemia Registry (HELLAS-FH).

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Article Synopsis
  • Familial hypercholesterolemia (FH) significantly increases the risk of atherosclerotic cardiovascular disease (ASCVD), with older patients (over 65) experiencing more ASCVD risk factors, such as hypertension and type 2 diabetes, compared to younger patients.
  • In a study of 2,273 adults, elderly FH patients showed a higher prevalence of established ASCVD (38.4%) and coronary artery disease (CAD) compared to their younger counterparts, even when adjusted for other risk factors.
  • Although elderly patients received more intense lipid-lowering treatments with lower post-treatment LDL-C levels, both elderly and younger groups had similarly low rates of achieving LDL-C targets, highlighting the need for improved early
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Background: Despite advances in the treatment of oncology patients, therapy-related side effects may lead to premature morbidity. Inflammatory activation that has been linked to cardiovascular disease is crucial for the pathogenesis of both Hodgkin (HL) and non-Hodgkin lymphoma (NHL).

Objectives: The purpose of this study was to assess the vascular effects of chemotherapy in patients with HL and NHL by positron emission tomography/computed tomography with 18-fluorodeoxyglucose (18-FDG PET/CT) and to investigate interactions with systemic inflammation as assessed by circulating inflammatory markers.

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Article Synopsis
  • Familial hypercholesterolemia (FH) and type 2 diabetes mellitus (T2DM) both increase the risk of atherosclerotic cardiovascular disease (ASCVD), but the relationship between T2DM and ASCVD in FH patients is not well understood.
  • In a study involving 1,719 adults with FH, 7.2% were diagnosed with T2DM, and those with T2DM showed significantly higher rates of ASCVD, coronary artery disease, and stroke compared to those without T2DM.
  • T2DM was strongly linked to a higher prevalence of ASCVD after adjusting for various risk factors, suggesting the need for enhanced risk assessment and treatment strategies for FH patients with T2DM.
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Background: Microwave radiometry (MWR) assesses non-invasive carotid artery temperatures reflecting inflammation. In the present study, we aimed to investigate the impact of hypolipidemic therapy either with simvastatin or with combination simvastatin plus ezetimibe on carotid artery temperatures of patients with familial hyperlipidemia syndromes (FHS).

Methods: Consecutive patients with diagnosis of either familial heterozygous hypercholesterolemia (heFH) or familial combined hyperlipidemia (FCH) were included in the study.

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Article Synopsis
  • The study investigated the relationship between lymphoma severity and cardiovascular health, specifically looking at arterial inflammation through FDG uptake in patients with active Hodgkin's and non-Hodgkin's lymphoma.
  • Sixty-two chemotherapy-naïve patients were compared to previously treated lymphoma patients to assess metabolic tumor volume and glycolysis associated with arterial fluoride uptake.
  • Results showed significant correlations between disease severity and arterial inflammation, with higher FDG uptake in active lymphoma patients compared to controls, particularly in advanced stages of the disease.
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Chemotherapy regimens for breast cancer treatment can promote vascular dysfunction and lead to high cardiovascular risk. To investigate the cardiovascular burden and vascular inflammation in metastatic breast cancer patients receiving CDK 4/6 inhibitors or everolimus in addition to standard hormonal treatment. 22 consecutive female patients with metastatic breast cancer were enrolled.

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Aims: Despite the established link between familial hypercholesterolemia (FH) and increased risk of coronary heart disease (CHD), its association with other common atherosclerotic and metabolic diseases has not been extensively studied. The aim of this study was to report the prevalence of peripheral arterial disease (PAD) [i.e.

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Background: The role of adipose tissue (AT) in arterial inflammation in familial dyslipidaemias is poorly studied. We investigated the relationship between AT and arterial inflammation in patients with heterozygous familial hypercholesterolemia (heFH) and familial combined hyperlipidemia (FCH).

Methods And Results: A total of 40 patients (20 heFH/20 FCH) and a subgroup of 20 of non-heFH/FCH patients were enrolled.

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Background: Familial hypercholesterolemia (FH) is characterized by elevated low-density lipoprotein cholesterol (LDL-C) levels and increased cardiovascular disease (CVD) risk. FH patients often have increased lipoprotein(a) [Lp(a)] levels, which further increase CVD risk. Novel methods for accurately calculating LDL-C have been proposed.

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Background: Texture analysis has been increasingly used in the field of positron emission tomography (PET)/computed tomography (CT) imaging with Fluorine-18 fluorodeoxyglucose (18F-FDG), aiming at assessing tumor heterogeneity. The purpose of the present study is to examine the feasibility of performing texture analysis in carotid arteries, investigate the value of textural features as predictors of potential plaque vulnerability using as reference standards histological and immunohistochemical data and compare their performance with conventional uptake measurements.

Methods: 67 different 18F-FDG PET-based textural features were extracted from carotid images of 21 patients with high-grade carotid stenosis undergoing endarterectomy.

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Background: In randomized clinical trials, proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9i) effectively reduce low-density lipoprotein-cholesterol (LDL-C) with a favorable tolerability and safety profile. Our purpose is to provide real-world data regarding the indications, efficacy and safety of PCSK9i.

Methods: The cohort comprised 141 patients who attended the lipid clinic of 3 hospitals in Greece and started using PCSK9i.

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Importance: Aortic stiffness, as assessed by carotid-femoral pulse wave velocity, is an independent predictor of future events in individuals with hypertension. Recent data suggest a predictive role of estimated pulse wave velocity (ePWV) calculated by previously published equations using age and blood pressure in future events in individuals with hypertension.

Objective: To investigate whether ePWV and its response to treatment predict survival in the Systolic Blood Pressure Intervention Trial (SPRINT).

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Purpose: Proprotein convertase subtilisin/kexin type 9 (PCSK9) and lipoprotein (a) (Lp[a]) levels are associated with cardiovascular risk. To investigate PCSK9 and Lp(a) levels of children born after assisted reproduction technologies (ART) compared with naturally conceived (NC) controls.

Methods: In this exposure-matched cohort study, 73 racial-, sex-, and age-matched children (mean age 98 ± 35 months) of ART (intracytoplasmic sperm injection [ICSI] n = 33, classic in vitro fertilization [IVF] n = 40) and 73 NC children were assessed.

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To develop and test a model predicting 2-deoxy-2-[F]fluoro-D-glucose ([F]FDG) standardized uptake value (SUV) changes over time in the aorta and the superior vena cava (SVC). Maximum aortic SUV and mean SVC SUV were determined at two time points (T1 and T2) in the ascending (ASC), descending (DSC), abdominal (ABD) aorta, aortic arch (ARC) and SVC of patients who have undergone [F]FDG PET/CT for clinical purposes. For SUV prediction at T2, linear and non-linear models of SUV difference for a given time change were developed in a derivation group.

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Aims: To test the hypothesis that virtual functional assessment index (vFAI) is related with regional flow parameters derived by quantitative positron emission tomography (PET) and can be used to assess abnormal vasodilating capability in coronary vessels with stenotic lesions at coronary computed tomography angiography (CCTA).

Methods And Results: vFAI, stress myocardial blood flow (MBF), and myocardial flow reserve (MFR) were assessed in 78 patients (mean age 62.2 ± 7.

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Non-response cardiac resynchronization therapy (CRT) remains an issue, despite the refinement of selection criteria. The purpose of this study was to investigate the role of stress echocardiography along with dyssynchrony parameters for identification of CRT responders or late responders. 106 symptomatic heart failure patients were examined before, 6 months and 2-4 years after CRT implementation.

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Background And Aims: Although familial hypercholesterolemia (FH) is one of the most common genetic disorders, it remains largely underdiagnosed and undertreated. The Hellenic Atherosclerosis Society has established the Hellenic Familial Hypercholesterolemia (HELLAS-FH) Registry, part of the Familial Hypercholesterolemia Studies Collaboration (FHSC), to evaluate the characteristics and management of patients with FH in Greece.

Methods: Patients with diagnosed FH were recruited by a network of sites throughout Greece.

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Objective: Proprotein convertase subtilisin/kexin type 9 (PCSK9) levels predict cardiovascular risk. We aimed to determine the correlation of PCSK9 levels with predictors of cardiovascular risk, such as central hemodynamics and carotid intima-media thickness (cIMT), in subjects with familial dyslipidemias.

Methods: Thirty-three asymptomatic subjects (age: 45.

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The aim of this study was to evaluate in an experimental model of aortic valve (AV) stenosis the effectiveness of zoledronate on the inhibition of calcification. Sixteen New Zealand rabbits were placed on vitamin D-enriched diet for 3 weeks. All animals underwent PET/CT at baseline and before euthanasia to assess calcification.

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Peripheral artery disease (PAD) affects approximately one in five persons older than 70 years of age and it is often present in patients with concomitant vascular disease in different body territories (e.g. coronary artery disease).

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