Search Results (43)

Background/Objectives: Epicardial fat thickness (EFT) is an echocardiographic marker of epicardial adipose tissue that has been linked to coronary atherosclerosis, but its relationship with both coronary artery disease (CAD) severity and myocardial ischemia remains incompletely assessed. This study evaluated the association between EFT, angiographic CAD severity, and stress-induced myocardial ischemia. Methods: In a prospective study, 125 consecutive patients with suspected stable angina underwent transthoracic echocardiography with EFT measurement, dobutamine stress echocardiography, and coronary angiography. EFT was measured at end-systole in the parasternal long-axis view. Significant CAD was defined as ≥50% stenosis in at least one major epicardial coronary artery. Myocardial ischemia was assessed using peak-stress wall motion score index (WMSI). Results: Significant CAD was present in 56% of patients. Mean EFT was significantly higher in patients with significant CAD compared with those without (7.8 ± 2.0 mm vs. 5.5 ± 1.5 mm; p < 0.001). EFT increased progressively with angiographic CAD severity (non-significant CAD: 5.5 ± 1.5 mm; one-vessel disease: 6.5 ± 1.8 mm; two-vessel disease: 7.5 ± 2.0 mm; three-vessel disease: 8.5 ± 1.9 mm; p < 0.001). Patients with EFT > 5 mm had a significantly higher prevalence of significant CAD (68.8% vs. 33.3%; p < 0.001) and were older, with higher body mass index and a greater prevalence of hypertension and obesity. Additionally, peak-stress WMSI was significantly higher in patients with elevated EFT (1.08 ± 0.07 vs. 1.04 ± 0.05; p = 0.005), indicating a greater ischemic burden. Conclusions: EFT is associated with both the anatomical severity of CAD and the extent of stress-induced myocardial ischemia, supporting its potential role in non-invasive risk stratification of patients with suspected CAD. Full article

Background: Visceral adiposity has emerged as a clinically relevant determinant of early cardiometabolic dysfunction in pediatric type 1 diabetes mellitus (T1DM), yet its assessment remains underutilized in routine practice. This study evaluated ultrasonographically measured epicardial adipose tissue thickness (EATT) and perirenal adipose tissue thickness (PrATT) as markers of metabolic risk, insulin sensitivity, and subclinical atherosclerosis in children and adolescents with T1DM. Methods: This cross-sectional study included 150 participants with T1DM and 152 age- and sex-matched healthy controls. Anthropometric data, biochemical parameters, hepatic steatosis grade, and insulin sensitivity indices (eGDR) were collected. EATT and PrATT were measured via standardized echocardiographic and abdominal ultrasonographic protocols. Carotid intima–media thickness (cIMT) was assessed as an indicator of subclinical atherosclerosis. Correlation and multivariable logistic regression analyses were performed to identify independent predictors of T1DM status and cardiometabolic risk. Results: Children with T1DM exhibited significantly higher PrATT and EATT values compared with controls (both p < 0.05). All eGDR indices were markedly lower in the T1DM group, reflecting reduced insulin sensitivity. PrATT and EATT showed strong or moderate correlations with hsCRP, hepatic steatosis, atherogenic index of plasma, and multiple anthropometric markers. Both visceral fat depots were positively associated with cIMT. Logistic regression identified PrATT, EATT, hsCRP, cIMT, and eGDR-BMI as independent predictors of case status. Subgroup analyses demonstrated more pronounced visceral adiposity and metabolic impairment among participants with BMI ≥85th percentile. Conclusions: Ultrasonographically measured PrATT and EATT provide valuable insight into early cardiometabolic risk in youth with T1DM, independent of BMI. Their associations with insulin resistance, inflammation, and subclinical atherosclerosis highlight their potential utility as accessible markers for early risk stratification in pediatric diabetes. Routine incorporation of visceral fat assessment may support earlier identification of high-risk individuals and more targeted preventive strategies. Full article

Introduction: Epicardial adipose tissue (EAT), a fat depot between the myocardium and pericardium, produces pro-inflammatory adipokines, contributing to inflammation, insulin resistance, and endothelial dysfunction. EAT has been recognized as an independent risk factor for cardiovascular diseases, including atrial fibrillation (AFib) and acute ischemic stroke (AIS). This study explores the association between EAT and AIS risk, with a focus on populations with cardiovascular comorbidities. Material and Methods: This meta-analysis adhered to MOOSE and PRISMA guidelines. A comprehensive search of PubMed, SCOPUS, and Embase databases was conducted, targeting studies evaluating the association between EAT and AIS. Inclusion criteria encompassed RCTs, cohort, case–control, and cross-sectional studies. Quality assessment was performed using appropriate tools, and statistical analysis involved pooled odds ratios (ORs) with 95% confidence intervals (CIs) using a binary random-effects model. Results: The search identified 711 studies, eight of which met the inclusion criteria, yielding 7412 participants. Analysis revealed that increased EAT thickness significantly correlated with higher odds of AIS (aOR: 3.60 [2.26–5.74], I² = 74.24%). Sensitivity analysis confirmed the robustness of these findings despite publication bias. Higher epicardial adipose volume was also associated with an increased AIS risk (aOR: 1.17 [1.03–1.34], I² = 49.54%). Conclusions: Increased EAT thickness and volume are associated with a higher risk of AIS in populations with cardiovascular comorbidities, including AFib. EAT’s pro-inflammatory and pro-thrombotic properties may contribute to stroke pathophysiology. These findings highlight the potential utility of EAT measurement in stroke risk stratification and support further research to integrate EAT assessment into clinical practice. Full article

Background: Cardiovascular diseases are the leading cause of global mortality, with 80% of coronary heart disease in patients over 65. Understanding aging cardiovascular structures is crucial. Photon-counting computed tomography (PCCT) offers improved spatial and temporal resolution and better signal-to-noise ratio, enabling texture analysis in clinical routines. Detecting structural changes in aging left-ventricular myocardium may help predict cardiovascular risk. Methods: In this retrospective, single-center, IRB-approved study, 90 patients underwent ECG-gated contrast-enhanced cardiac CT using dual-source PCCT (NAEOTOM Alpha, Siemens). Patients were divided into two age groups (50–60 years and 70–80 years). The left ventricular myocardium was segmented semi-automatically, and radiomics features were extracted using pyradiomics to compare myocardial texture features. Epicardial adipose tissue (EAT) density, thickness, and other clinical parameters were recorded. Statistical analysis was conducted with R and a Python-based random forest classifier. Results: The study assessed 90 patients (50–60 years, n = 54, and 70–80 years, n = 36) with a mean age of 63.6 years. No significant differences were found in mean Agatston score, gender distribution, or conditions like hypertension, diabetes, hypercholesterolemia, or nicotine abuse. EAT measurements showed no significant differences. The Random Forest Classifier achieved a training accuracy of 0.95 and a test accuracy of 0.74 for age group differentiation. Wavelet-HLH_glszm_GrayLevelNonUniformity was a key differentiator. Conclusions: Radiomics texture features of the left ventricular myocardium outperformed conventional parameters like EAT density and thickness in differentiating age groups, offering a potential imaging biomarker for myocardial aging. Radiomics analysis of left ventricular myocardium offers a unique opportunity to visualize changes in myocardial texture during aging and could serve as a cardiac risk predictor. Full article

Background/Objectives: Cardiovascular disease remains the leading global cause of death, with atherosclerotic plaque vulnerability, rather than stenosis severity, playing a central role in acute coronary events. Epicardial adipose tissue (EAT) has emerged as a key contributor to coronary atherosclerosis and myocardial ischemia. This study aimed to investigate the relationship between EAT thickness and the development and severity of atherosclerotic plaques in these coronary arteries, and to evaluate the influence of demographic factors on EAT thickness and plaque vulnerability. Methods: A retrospective analysis was conducted on autopsy data from 245 sudden cardiac death (SCD) cases (2021–2023). EAT thickness was measured at the left anterior descending artery (LAD) and left circumflex coronary artery (LCx) levels. From each artery, one segment that showed evidence of an atherosclerotic plaque was collected and sent for histological examination. Additionally, we documented demographic data, including age, sex, and body mass index (BMI) for each case. Results: In the present study, we enrolled 245 subjects with SCD, among whom 175 (71.42%) were male, and 70 (28.58%) were female. The mean age was 62.31 ± 12.69 years, and the mean BMI was 26.12 ± 4.16. We observed a mean EAT thickness value of 0.74 ± 0.26 cm at the LAD artery level and 0.71 ± 0.27 cm at the LCx artery level. We observed a positive correlation between BMI and EAT thickness at the LAD level (r = 0.260, p < 0.001) and similarly at the LCx level (r = 0.260, p < 0.001). Additionally, advancing age is associated with an increase in EAT thickness at both the LAD level (r = 0.188, p = 0.003) and the LCx level (r = 0.242, p < 0.001). Furthermore, we observed a higher EAT thickness at the LAD level (p = 0.0019) and the LCx level (p = 0.0225) among subjects with unstable atherosclerotic plaques. In the logistic regression analysis, the elevated value of EAT thickness was associated with unstable atherosclerotic plaque at LAD (OR: 1.88, p = 0.002) and LCx (OR: 1.51, p = 0.010) for the entire study cohort. Conclusions: Our data revealed that higher baseline values of EAT LCx and EAT LAD are associated with unstable plaque at the level of the left coronary arteries. Furthermore, our findings indicate that male individuals are more susceptible to developing unstable plaques in the coronary arteries. Full article

Background: Left ventricular hypertrophy (LVH) is a key predictor of cardiovascular disease. This study aimed to investigate the correlation between LVH and regional adipose tissue deposits, including visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), and epicardial adipose tissue (EAT), and sex-related differences in these correlations. Methods: A total of 416 individuals (median age 66 years, range 20–95), without structural heart disease or a history of hypertension and coronary artery disease, underwent echocardiography and abdominal computed tomography. Statistical analyses included logistic and linear regression to assess the associations between adipose tissue measures and LVH. Results: LVH was associated with older age, higher systolic blood pressure, and increased EAT thickness. EAT thickness was independently associated with LVH in women (OR 1.21, 95% CI 1.03–1.44, p = 0.024) but not in men. Scatter plot analysis revealed a positive correlation between EAT and left ventricular mass index (LVMI) in women (r = 0.366, p < 0.001) and a negative correlation in men (r = −0.153, p = 0.038). Conclusions: VAT and SAT showed no significant associations with LVMI or LVH in either sex. These findings suggest that EAT, but not VAT or SAT, is linked to cardiac remodeling in a sex-specific manner. Full article

Background: In adults, epicardial adipose tissue (EAT) is associated with metabolic syndrome (MS) and coronary artery disease. EAT thickness is increased in obese youth, but total EAT volume and its correlation with cardiovascular risk factors have not been studied. Objectives: To determine EAT volume in adolescents and its association with obesity and cardiovascular risk factors. Methods: We performed a cross-sectional study including 48 pubertal adolescents (24 obese and 24 lean subjects, aged 13.6 ± 1.5 yr). EAT volume as well as visceral and subcutaneous abdominal adipose tissue volumes were obtained by magnetic resonance imaging. Anthropometrical parameters; blood pressure (BP); fasting serum triglycerides; total and low- and high-density lipoprotein (HDL-C) cholesterol; glucose; and insulin levels were measured. Results: Obese adolescents had higher EAT volume compared to lean controls (49.6 ± 18.0 vs. 17.6 ± 6.7 cm³, p < 0.0005). They also had significantly increased visceral abdominal fat volumes, systolic BP, serum triglycerides, and insulin levels, and decreased HDL-C concentration. EAT volume was significantly associated with anthropometrical indices and cardiovascular risk factors: waist circumference, systolic BP, triglycerides, HDL-C levels, and insulin resistance indices. Metabolic syndrome was present in 25% of obese adolescents. EAT volume was significantly higher in obese adolescents with MS compared to those without MS (63.5 ± 21.4 vs. 44.9 ± 14.6 cm³, p = 0.026). Conclusions: EAT volume, which is known to contribute to atherogenesis in adults, is increased in obese adolescents, and is associated with abdominal visceral fat, cardiovascular risk factors, and MS. Excessive EAT early in life may contribute to the development of premature cardiometabolic disease. Full article

The presence of visceral adipose tissue implies a higher risk of cardiovascular diseases than subcutaneous adiposity, the most dangerous heart fat. Epicardial adipose tissue (EAT) could have great potential as a detection indicator of cardiovascular diseases, although it has seldom been studied in Spanish children. Objective: The objective of the current research was to describe the values of EAT in a Spanish pediatric population and to investigate the associations between EAT and anthropometric measures, blood pressure, lipid and glucose profiles, and metabolic syndrome. Method: An analytical cross-sectional study of elementary and high school students (aged 6 to 17) measured anthropometrics, blood pressure, lipid and glycemic profiles, and echocardiographic fat thickness. The analysis was based on regression and discriminant analysis. Results: The results of this study (N = 227) showed that the body mass index (BMI) was 20.29 ± 4.54, with an overweight set of 49.77%, and the percentage for metabolic syndrome was 5.3%. EAT was linked to being male, BMI percentile, waist circumference, waist-to-height ratio (p < 0.001), hypertension, higher low-density lipoprotein (LDL) levels, and metabolic syndrome (p < 0.05). Conclusions: This paper argues that in children with higher elevated EAT thickness values, this correlates with cardiovascular risk factors including high blood pressure, elevated LDL levels, and metabolic syndrome. Full article

Background: The role of epicardial adipose tissue (EAT) in heart failure with preserved ejection fraction (HFpEF) remains to be defined. Methods: A consecutive series of outpatients with chronic heart failure—heart failure with reduced ejection fraction (HFrEF) and HFpEF and/or diastolic dysfunction—had EAT assessed by echocardiographic measurement and related to indices of cardiac structure and function. Results: Epicardial fat thickness was significantly (p < 0.05) greater in HFpEF (N = 141) with a mean of 6.7 ± 1.6 mm compared with a mean of 5.1 ± 1.0 mm in HFrEF (n = 40). After adjusting for the relationship with BMI, in HFpEF, epicardial fat was significantly (p < 0.05) negatively correlated with left ventricular internal diameter end diastole (LVIDd), left ventricular internal diameter end systole (LVIDs), left ventricular (LV) end-diastolic volume (EDV) index, lateral e’, septal e’, right atrial (RA) volume index, and hemoglobin (Hgb). The association with Hgb was no longer significant after adjusting for the effect of age. HFpEF was associated with smaller LVIDd, LVIDs, LV EDV indexes, and left atrial (LA) and RA volume indexes. Conclusions: Epicardial fat is significantly (p < 0.05) greater in HFpEF than HFrEF. Epicardial fat is associated with smaller cardiac chamber sizes in HFpEF suggesting that epicardial fat acts as a constraint to cardiac dilation. Full article

Background: As a novel biomarker for cardiovascular diseases, epicardial adipose tissue (EAT) has been linked to psoriasis. We conducted an updated systematic review, building upon a previous report on the relationship between EAT and psoriasis. Methods: We searched Medline, Embase, and the Cochrane Central Register of Controlled Trials. The methodological quality of each study was assessed using the Newcastle–Ottawa Scale. The pooled mean difference (MD) or standardized mean difference (SMD) and the corresponding confidence interval (CIs) were calculated. Results: We included 10 studies with 1287 participants. Five of the included studies were of high methodological quality, while the other five were of moderate quality. The pooled data indicated that psoriasis patients had significantly increased EAT compared to individuals in the control group (SMD 1.53, 95% CI 0.61 to 2.45, 9 studies, 1195 participants). The subgroup analysis showed that psoriasis patients had significantly increased EAT thickness compared with the controls (SMD 2.45, 95% CI 0.73 to 4.17, 5 studies, 657 participants). Similarly, EAT area in single-slice CT images was significantly higher in the psoriasis group than in the control group (SMD 0.45, 95% CI 0.14 to 0.76, 2 studies, 195 participants). The EAT volume based on CT images appeared to be higher in the psoriasis group than in the control group, but the difference was not statistically significant (SMD 0.32, 95% CI −0.06 to 0.70, 2 studies, 343 participants). Conclusions: EAT, especially echocardiographic EAT thickness and CT-determined EAT area, was significantly associated with psoriasis, but CT-determined EAT volume was not. Full article

Glucagon-like peptide-1 receptor agonists (GLP-1 RA) are novel antihyperglycemic agents. By acting through the central nervous system, they increase satiety and reduce food intake, thus lowering body weight. Furthermore, they increase the secretion of insulin while decreasing the production of glucagon. However, recent studies suggest a more complex metabolic impact through the interaction with various other tissues. In our present review, we aim to provide a summary of the effects of GLP-1 RA on serum lipids, adipose tissue, and muscle metabolism. It has been found that GLP-1 RA therapy is associated with decreased serum cholesterol levels. Epicardial adipose tissue thickness, hepatic lipid droplets, and visceral fat volume were reduced in obese patients with cardiovascular disease. GLP-1 RA therapy decreased the level of proinflammatory adipokines and reduced the expression of inflammatory genes. They have been found to reduce endoplasmic reticulum stress in adipocytes, leading to better adipocyte function and metabolism. Furthermore, GLP-1 RA therapy increased microvascular blood flow in muscle tissue, resulting in increased myocyte metabolism. They inhibited muscle atrophy and increased muscle mass and function. It was also observed that the levels of muscle-derived inflammatory cytokines decreased, and insulin sensitivity increased, resulting in improved metabolism. However, some clinical trials have been conducted on a very small number of patients, which limits the strength of these observations. Full article

Background: Modern treatments for transfusion-dependent β-thalassemia (TDβT) have allowed patients to reach high life expectancy with no iron overload. Despite survival improvement, atrial fibrillation (AF) has emerged as a relevant issue. AF pathophysiology and characteristics in TDβT are different than in the general population. Epicardial adipose tissue (EAT) may play a role but its relationship with AF in patients with TDβT has not been explored. Methods: A monocentric, cross-sectional study, enrolling consecutive patients with TDβT. Epicardial adipose tissue (EAT) was evaluated at magnetic resonance. Characteristics of patients with and without history of AF were investigated. Factors independently associated with AF prevalence were analyzed. Results: A total of 116 patients were enrolled. All patients were treated with regular chelation therapy. The prevalence of AF was 29.3% (34/116). Cardiac T2* and liver iron concentration were no different between patients with and without AF. EAT thickness was significantly higher in patients with AF at left atrium, right atrium and right ventricle (5.0 vs. 4.0 mm, p < 0.01, 4.4 vs. 4.0, p = 0.02 and 5.0 vs. 4.3, p = 0.04). Patients with AF presented with older age, (53 vs. 49 years, p < 0.01), more hypothyroidism (44.1 vs. 20.7%, p = 0.01), pulmonary hypertension (23.5 vs. 2.4% p < 0.01), splenectomy (88.2 vs. 64.6%, p = 0.01), higher right and left atrial volume (61 vs. 40 and 74 vs. 43 mL, both p < 0.01). At multivariable analysis, hypothyroidism, left atrial volume and left atrial EAT were independently associated with AF (odds ratio 9.95, 1.09 and 1.91, respectively). Conclusions: In a contemporary cohort of patients with TDβT, treated with regular chelation therapy, prevalence of AF was unrelated to iron overload. EAT was independently associated with AF. Full article

Background: Heart failure is a major cause of morbidity and mortality worldwide; left ventricular diastolic dysfunction plays a leading role in this clinical context. Diastolic dysfunction may be predisposed by increased abdominal fat and, consequently, increased pericardial and epicardial adiposity. This study aimed to determine whether pericardial fat (PF) and epicardial fat (EF) are associated with left ventricular diastolic function. Methods: A total of 82 patients had their abdominal circumference measured and underwent transthoracic echocardiography to measure the thickness of PF and EF and assess the left ventricular diastolic function. Two groups were created based on mean pericardial fat (PF) thickness (4.644 mm) and were related to abdominal circumference and echocardiographic parameters. Results: Subjects in the PF High group showed a significant decrease in septal e’ (p < 0.0001), lateral e’ (p < 0.0001), and E/A ratio (p = 0.003), as well as a significant increase in E/e’ ratio (p < 0.0001), E wave deceleration time (p = 0.013), left atrial volume (p < 0.0001), the left ventricle mass (p = 0.003), tricuspid regurgitant jet velocity (p < 0.0001), and the left ventricle diameter (p = 0.014) compared to the PF Low group. Correlations were found between pericardial fat and nine echocardiographic parameters in the study, while epicardial fat (EP) only correlated with eight. Conclusions: Measurement of abdominal circumference, PF, and EF is an early indicator of diastolic changes with transthoracic echocardiography being the gold standard exam. Full article

Background and Objectives: This cross-sectional study conducted at the Timișoara Institute of Cardiovascular Diseases, Romania, and the Centre for Translational Research and Systems Medicine from “Victor Babeș” University of Medicine and Pharmacy of Timișoara, Romania, investigated the relationship between indexed epicardial adipose tissue thickness (EATTi) and oxidative stress in epicardial adipose tissue (EAT) adipocytes in the context of coronary artery disease (CAD) among open-heart surgery patients. The objective was to elucidate the contribution of EATTi as an additional marker for complexity prediction in patients with CAD, potentially influencing clinical decision-making in surgical settings. Materials and Methods: The study included 25 patients undergoing cardiac surgery, with a mean age of 65.16 years and a body mass index of 27.61 kg/m². Oxidative stress in EAT was assessed using the ferrous iron xylenol orange oxidation spectrophotometric assay. The patients were divided into three groups: those with valvular heart disease without CAD, patients with CAD without diabetes mellitus (DM), and patients with both CAD and DM. The CAD complexity was evaluated using the SYNTAX score. Results: The EATTi showed statistically significant elevations in the patients with both CAD and DM (mean 5.27 ± 0.67 mm/m²) compared to the CAD without DM group (mean 3.78 ± 1.05 mm/m², p = 0.024) and the valvular disease without CAD group (mean 2.67 ± 0.83 mm/m², p = 0.001). Patients with SYNTAX scores over 32 had significantly higher EATTi (5.27 ± 0.66 mm/m²) compared to those with lower scores. An EATTi greater than 4.15 mm/m² predicted more complex CAD (SYNTAX score >22) with 80% sensitivity and 86% specificity. The intra- and interobserver reproducibility for the EATTi measurement were excellent (intra-class correlation coefficient 0.911, inter-class correlation coefficient 0.895). Conclusions: EATTi is significantly associated with CAD complexity in patients undergoing open-heart surgery. It serves as a reliable indicator of more intricate CAD forms, as reflected by higher SYNTAX scores. These findings highlight the clinical relevance of EATTi in pre-operative assessment, suggesting its potential utility as a prognostic marker in cardiac surgical patients. Full article

Tachycardia-induced cardiomyopathy (TIC) is a reversible subtype of dilated cardiomyopathy (DCM) resulting from sustained supraventricular or ventricular tachycardia and diagnosed by the normalization of left ventricular ejection fraction (LVEF) after stable sinus rhythm restoration. The aim of this study was to determine the contribution of cardiac magnetic resonance (CMR) to the differential diagnosis of TIC and DCM with persistent atrial arrythmias in patients hospitalized for the first time with heart failure (HF) with reduced LVEF of nonischemic origin. A total of 29 patients (age: 58.2 ± 16.9 years; males: 65.5%; average EF: 37.0 ± 9.5%) with persistent atrial tachyarrhythmia and first decompensation of HF without known coronary artery diseases were included in this study. The patients successfully underwent cardioversion and were observed for 30 days. The study population was divided into groups of responders (TIC patients; N = 16), which implies achieving FF > 50% or its increase > 10% in 30 days of TIC, and non-responders (N = 13). The increase in left ventricle (LV) volumes measured using CMR was significantly higher in the non-responder group when compared with the responders (114.8 mL ± 25.1 vs. 68.1 mL ± 10.5, respectively, p < 0.05). Non-responders also demonstrated decreased interventricular septum thickness (9.1 ± 0.8 vs.11.5 ± 1.3, respectively, p < 0.05). Late gadolinium enhancement (LGE) was observed in 12 patients (41.4%). The prevalence of LGE was increased in the non-responder group (25.0% vs. 65.1%, respectively, p = 0.046). Notably, a septal mid-wall LGE pattern was found exclusively in the non-responders. Epicardial adipose tissue thickness was decreased in the non-responder group versus the TIC patients. Conclusion: Patients with TIC were found to have smaller atrial and ventricular dimensions in comparison to patients with DCM. In addition, LGE was more common in DCM patients. Full article