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Atrial fibrillation and pericardial fat

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https://www.readbyqxmd.com/read/29764718/metabolic-syndrome-associates-with-left-atrial-dysfunction
#1
K Nyman, M Granér, M O Pentikäinen, J Lundbom, A Hakkarainen, R Sirén, M S Nieminen, M-R Taskinen, N Lundbom, K Lauerma
BACKGROUND AND AIMS: Obesity and metabolic syndrome (MetS) are risk factors of atrial fibrillation (AF), but limited data exist on their effect on left atrial (LA) function. The aim of the study was to evaluate the effects of cardiac, hepatic and intra-abdominal ectopic fat depots and cardiometabolic risk factors on LA function in non-diabetic male subjects. METHODS AND RESULTS: Myocardial and hepatic triglyceride contents were measured with 1.5T 1 H-magnetic resonance spectroscopy and LA and left ventricular function, visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), epicardial and pericardial fat by magnetic resonance imaging (MRI) in 33 men with MetS and 40 men without MetS...
February 21, 2018: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/29748197/minimally-invasive-delivery-of-hydrogel-encapsulated-amiodarone-to-the-epicardium-reduces-atrial-fibrillation
#2
Jose R Garcia, Peter F Campbell, Gautam Kumar, Jonathan J Langberg, Liliana Cesar, Juline N Deppen, Eric Y Shin, Neal K Bhatia, Lanfang Wang, Kai Xu, Frank Schneider, Brian Robinson, Andrés J García, Rebecca D Levit
BACKGROUND: Atrial fibrillation (AF) is the most common cardiac arrhythmia. Although treatment options for AF exist, many patients cannot be maintained in normal sinus rhythm. Amiodarone is an effective medication for AF but has limited clinical utility because of off-target tissue toxicity. METHODS: Here, we use a pig model of AF to test the efficacy of an amiodarone-containing polyethylene glycol-based hydrogel. The gel is placed directly on the atrial epicardium through the pericardial space in a minimally invasive procedure using a specially designed catheter...
May 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29748196/interleukin-10-treatment-ameliorates-high-fat-diet-induced-inflammatory-atrial-remodeling-and-fibrillation
#3
(no author information available yet)
BACKGROUND: Obesity, characterized by systemic low-grade inflammation, is considered a well-known risk for atrial fibrillation. In fact, IL-10 (interleukin 10), which is a potent anti-inflammatory cytokine, has been reported to decrease in obese and diabetic patients. We tested the hypotheses forwarding that genetic deletion of IL-10 exacerbates high-fat diet (HFD)-induced obesity-caused atrial inflammation, lipidosis, fibrosis, and fibrillation and that IL-10 therapy inhibits this pathology...
May 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29077154/the-differentiation-of-beige-adipocyte-in-pericardial-and-epicardial-adipose-tissues-induces-atrial-fibrillation-development
#4
Y He, N Ma, M Tang, Z-L Jiang, H Liu, J Mei
OBJECTIVE: Growing evidence has identified that excessive accumulation of pericardial adipose tissues (PAT) and epicardial adipose tissues (EAT) is associated with atrial fibrillation (AF) development. Moreover, beige adipocytes, present in PAT and EAT, have been proved beneficial in consumption of fatty acid and promotion of weight lose by nonshivering thermogenesis. The objective of this prospective, observational study was to reveal the potential association between beige adipocytes and AF development...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28822806/pericardial-adipose-and-aromatase-a-new-translational-target-for-aging-obesity-and-arrhythmogenesis
#5
Gabriel B Bernasochi, Wah Chin Boon, Claire L Curl, Upasna Varma, Salvatore Pepe, Marianne Tare, Laura J Parry, Evdokia Dimitriadis, Stephen B Harrap, Chrishan J Nalliah, Jonathan M Kalman, Lea M D Delbridge, James R Bell
A correlation exists between the extent of pericardial adipose and atrial fibrillation (AF) risk, though the underlying mechanisms remain unclear. Selected adipose depots express high levels of aromatase, capable of converting androgens to estrogens - no studies have investigated aromatase occurrence/expression regulation in pericardial adipose. The Women's Health Initiative reported that estrogen-only therapy in women elevated AF incidence, indicating augmented estrogenic influence may exacerbate cardiac vulnerability...
October 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28629772/impact-of-the-cardiovascular-system-associated-adipose-tissue-on-atherosclerotic-pathology
#6
REVIEW
Dimitry A Chistiakov, Andrey V Grechko, Veronika A Myasoedova, Alexandra A Melnichenko, Alexander N Orekhov
Cardiac obesity makes an important contribution to the pathogenesis of cardiovascular disease. One of the important pathways of this contribution is the inflammatory process that takes place in the adipose tissue. In this review, we consider the role of the cardiovascular system-associated fat in atherosclerotic cardiovascular pathology and a non-atherosclerotic cause of coronary artery disease, such as atrial fibrillation. Cardiovascular system-associated fat not only serves as the energy store, but also releases adipokines that control local and systemic metabolism, heart/vascular function and vessel tone, and a number of vasodilating and anti-inflammatory substances...
August 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28452401/pericardial-fat-volume-and-incident-atrial-fibrillation-in-the-multi-ethnic-study-of-atherosclerosis-and-jackson-heart-study
#7
Susan R Heckbert, Kerri L Wiggins, Chad Blackshear, Yi Yang, Jingzhong Ding, Jiankang Liu, Barbara McKnight, Alvaro Alonso, Thomas R Austin, Emelia J Benjamin, Lesley H Curtis, Nona Sotoodehnia, Adolfo Correa
OBJECTIVE: To determine whether greater pericardial fat volume would be associated with increased risk of incident atrial fibrillation (AF). METHODS: In the Multi-Ethnic Study of Atherosclerosis and Jackson Heart Study, pericardial fat volume was quantified by computed tomography. Incident AF was identified from discharge diagnosis codes, study electrocardiograms, and Medicare claims. RESULTS: Among 7,991 participants, 40% were African American, 32% white, 18% Hispanic, and 10% Chinese American; mean age was 62 years; 55% were women...
June 2017: Obesity
https://www.readbyqxmd.com/read/27988166/erratum-to-relationships-between-left-atrial-pericardial-fat-and-permanent-atrial-fibrillation-results-of-a-case-control-study-diagn-interv-imaging-97-2016-307-13
#8
D Sevinc, L Pasaoglu, R Coskun, N Atci, A Alimli, O Ucar
No abstract text is available yet for this article.
March 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/27931089/prognostic-implications-of-epicardial-fat-volume-quantification-in-acute-pericarditis
#9
George Lazaros, Alexios S Antonopoulos, Evangelos K Oikonomou, Panagiotis Vasileiou, Evangelos Oikonomou, Evangelia Stroumpouli, Apostolos Karavidas, Charalambos Antoniades, Dimitris Tousoulis
BACKGROUND: The pathophysiology of acute pericarditis remains largely unknown, and biomarkers are needed to identify patients susceptible to complications. As adipose tissue has a pivotal role in cardiovascular disease pathogenesis, we hypothesized that quantification of epicardial fat volume (EFV) provides prognostic information in patients with acute pericarditis. MATERIALS AND METHODS: Fifty (n = 50) patients with first diagnosis of acute pericarditis were enrolled in this study...
February 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27666172/relation-of-pericardial-fat-intrathoracic-fat-and-abdominal-visceral-fat-with-incident-atrial-fibrillation-from-the-framingham-heart-study
#10
MULTICENTER STUDY
Jane J Lee, Xiaoyan Yin, Udo Hoffmann, Caroline S Fox, Emelia J Benjamin
Obesity is associated with increased risk of developing atrial fibrillation (AF). Different fat depots may have differential associations with cardiac pathology. We examined the longitudinal associations between pericardial, intrathoracic, and visceral fat with incident AF. We studied Framingham Heart Study Offspring and Third-Generation Cohorts who participated in the multidetector computed tomography substudy examination 1. We constructed multivariable-adjusted Cox proportional hazard models for risk of incident AF...
November 15, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27301329/pericardial-fat-is-associated-with-the-risk-of-ventricular-arrhythmia-in-asian-patients
#11
Weng-Chio Tam, Yung-Kuo Lin, Wing-Pong Chan, Jen-Hung Huang, Ming-Hsiung Hsieh, Shih-Ann Chen, Yi-Jen Chen
BACKGROUND: Pericardial fat is correlated with the occurrence of atrial fibrillation or coronary atherosclerosis. However, the role of pericardial fat in ventricular arrhythmia remains unclear. METHODS AND RESULTS: Patients who had undergone dual-source computed tomography and 24-h Holter ECG were retrospectively enrolled. Quantification of the volume of pericardial fat surrounding the ventricles was analyzed using threshold attenuation of dual-source CT. The volume of pericardial fat was significantly different among those without ventricular premature beats (VPBs) in 24 h (n=28), those with occasional VPBs (n=54) and those with frequent VPBs (n=34) (12...
July 25, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27249809/excessive-interatrial-adiposity-is-associated-with-left-atrial-remodeling-augmented-contractile-performance-in-asymptomatic-population
#12
Yau-Huei Lai, Chun-Ho Yun, Cheng-Huang Su, Fei-Shih Yang, Hung-I Yeh, Charles Jia-Yin Hou, Tung-Hsin Wu, Ricardo C Cury, Hiram G Bezerra, Chung-Lieh Hung
PURPOSE: Pericardial adipose tissue had been shown to exert local effects on adjacent cardiac structures. Data regarding the mechanistic link between such measures and left atrial (LA) structural/functional remodeling, a clinical hallmark of early stage heart failure (HF) and atrial fibrillation (AF) incidence, in asymptomatic population remain largely unexplored. METHODS: This retrospective analysis includes 356 subjects free from significant valvular disorders, atrial fibrillation, or clinical HF...
March 2016: Echo Research and Practice
https://www.readbyqxmd.com/read/26945264/hemopericardium-under-dabigatran-for-stroke-prevention-in-atrial-fibrillation
#13
Claudia Stöllberger, Maria Heger, Josef Finsterer
Spontaneous hemopericardium is a complication of anticoagulant therapy with not only vitamin-K-antagonists, but also with nonvitamin-K-antagonist oral anticoagulants. We report a polymorbid 75-year old male under a therapy with dabigatran, valsartan, amlodipine, nicorandil, furosemide, atorvastatin, bisoprolol, metformin, tizanidine, pantoprazole, and tramadol. He suffered from chest pain for 4 months. Coronary angiography showed only ectatic coronary arteries. He started taking nonsteroidal anti-inflammatory drugs...
March 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/26837853/relationships-between-left-atrial-pericardial-fat-and-permanent-atrial-fibrillation-results-of-a-case-control-study
#14
D Sevinc, L Pasaoglu, R Coskun, N Atci, A Alimli, O Ucar
PURPOSE: The goal of this study was to retrospectively investigate the relationships between pericardial fat, left atrium volume (LAV) as measured on multidetector row computed tomography (MDCT) and persistent atrial fibrillation (AF) using a case-control study. MATERIALS AND METHODS: The study population consisted of 58 patients (19 men, 39 women; mean age, 67.8±10 [SD] years) with persistent AF and 74 control subjects (30 men, 44 women; mean age, 67.8±10.9 [SD] years)...
March 2016: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/26025867/pericardial-fat-and-atrial-fibrillation-epidemiology-mechanisms-and-interventions
#15
REVIEW
Mohamed Al-Rawahi, Riccardo Proietti, George Thanassoulis
Atrial fibrillation (AF) is the most common cardiac arrhythmia in clinical practice and is associated with major morbidity and mortality. AF prevalence has been projected to increase in the coming decades and is expected to affect over 7.5 million Americans by the year 2050. There is growing evidence that obesity represents an important risk factor for new onset AF, with each increment in BMI associated with a 3-8% higher risk for new-onset of AF, independent of other conventional AF risk factors such as age, hypertension and heart failure...
September 15, 2015: International Journal of Cardiology
https://www.readbyqxmd.com/read/25956552/simultaneous-fat-and-bone-assessment-in-hospitalized-heart-failure-patients-using-non-contrast-enhanced-computed-tomography
#16
Masaaki Konishi, Eiichi Akiyama, Hiroyuki Suzuki, Noriaki Iwahashi, Nobuhiko Maejima, Kengo Tsukahara, Kiyoshi Hibi, Masami Kosuge, Toshiaki Ebina, Yasushi Matsuzawa, Satoshi Umemura, Kazuo Kimura
BACKGROUND: Heart failure (HF) is associated with adverse metabolic influences and provokes fat loss as well as bone and muscle loss at the terminal stages. Pericardial fat is an ectopic fat depot that can potentially affect the myocardium, but the role of pericardial fat in HF is unclear. We sought to characterize pericardial fat in HF, particularly in association with bone tissue using cardiac computed tomography (CT). METHODS: In 61 consecutive hospitalized HF patients with left ventricular ejection fraction ≤50%, pericardial fat volume (PFV), CT density in the thoracic vertebrae, and ectopic calcification in the aortic valve were assessed simultaneously using electrocardiogram-gated non-contrast-enhanced CT...
January 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/25929437/inflammation-a-link-between-obesity-and-atrial-fibrillation
#17
REVIEW
Alina Scridon, Dan Dobreanu, Philippe Chevalier, Răzvan Constantin Şerban
Despite the long belief that the role of the adipose tissue was restricted to that of a passive store of triglycerides and a rich source of fatty acids, accumulating data demonstrates that the adipose tissue acts as an endocrine organ, capable of producing a large number of cytokines incriminated in generating a systemic inflammatory status. At its turn, this adiposity-related pro-inflammatory status appears to promote a large range of cardiovascular disorders, including atrial fibrillation (AF). Recent studies suggest that, in addition to systemic adiposity, the volume of the pericardial fat of the entire heart, and particularly of that overlying the atria, may represent an even more important risk factor for AF...
June 2015: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/25770455/myocardial-fat-as-a-part-of-cardiac-visceral-adipose-tissue-physiological-and-pathophysiological-view
#18
REVIEW
K Selthofer-Relatić, I Bošnjak
Thoracic fat includes extra-pericardial (outside the visceral pericardium) and intra-pericardial (inside the visceral pericardium) adipose tissue. It is called ectopic adipose tissue although it is a normal anatomical structure. Intra-pericardial adipose tissue, which is predominantly composed of epicardial and pericoronary adipose tissue, has a significant role in cardiovascular system function. It provides metabolic-mechanical support to the heart and blood vessels in physiological conditions, while it represents metabolic-cardiovascular risk in case of qualitative and quantitative structural changes in the tissue: it correlates with coronary atherosclerotic disease, left ventricular mass, left atrium enlargement and atrial fibrillation presence...
September 2015: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/25176630/pericardial-fat-volume-is-associated-with-clinical-recurrence-after-catheter-ablation-for-persistent-atrial-fibrillation-but-not-paroxysmal-atrial-fibrillation-an-analysis-of-over-600-patients
#19
Tae-Hoon Kim, Junbeom Park, Jin-Kyu Park, Jae-Sun Uhm, Boyoung Joung, Moon-Hyoung Lee, Hui-Nam Pak
BACKGROUND: Although pericardial fat volume (PFV) has been suggested to be associated with atrial fibrillation (AF), only a few studies have reported the association between pericardial fat and clinical outcome after radiofrequency catheter ablation (RFCA). The purpose of this study was to explore the factors associated with PFV and its prognostic significance after catheter ablation for AF, depending on the types of AF. METHODS: We included 665 patients (76.7% male, 57...
October 20, 2014: International Journal of Cardiology
https://www.readbyqxmd.com/read/24834998/importance-of-pericardial-fat-in-the-formation-of-complex-fractionated-atrial-electrogram-region-in-atrial-fibrillation
#20
Hisanori Kanazawa, Hiroshige Yamabe, Koji Enomoto, Junjiroh Koyama, Kenji Morihisa, Tadashi Hoshiyama, Kunihiko Matsui, Hisao Ogawa
BACKGROUND/OBJECTIVES: Pericardial fat (PF) and complex fractionated atrial electrogram (CFAE) are both associated with atrial fibrillation (AF). Therefore, we examined the relation between PF and CFAE area in AF. METHODS: The study population included 120 control patients without AF and 120 patients with AF (80 paroxysmal AF and 40 persistent AF) who underwent catheter ablation. Total cardiac PF volume, representing all adipose tissue within the pericardial sac, was measured by contrast-enhanced computed tomography...
July 1, 2014: International Journal of Cardiology
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