SciCombinator

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Journal: Herz

28

BACKGROUND: Atrial fibrillation (AF) recurrence after ablation is difficult to predict. The development of AF is associated with inflammation, and inflammatory markers such as big endothelin-1 (big ET-1) reflect inflammatory status. It is unknown, however, whether big ET-1 can be used as a predictor for AF recurrence. The aim of this study was to investigate the relationship between plasma levels of big ET-1 and AF recurrence. METHODS: A total of 158 patients who had undergone primary ablation for symptomatic and/or drug-refractory AF, including 103 with paroxysmal and 55 with persistent AF, were included in this study. Left atrial diameter was measured with echocardiography and plasma big ET-1 levels with ELISA. All patients were followed up for at least 12 months and AF recurrence defined as an episode of AF lasting ≥ 30 s, with or without atrial flutter or atrial tachycardia. RESULTS: The AF recurrence rate was 44.9% (71/158) during the median follow-up period of 22 (13, 40) months. Plasma levels of big ET-1 in the recurrence group were higher than those in the non-recurrence group in all patients [0.80 (0.54, 1.30) vs. 0.57 (0.48, 0.72) fmol·L(-) (1), p  = 0.001], in patients with paroxysmal AF [0.81 (0.46, 1.30) vs. 0.57 (0.48, 0.70) fmol·L(-) (1), p  = 0.009] as well as in patients with persistent AF [0.77 (0.57, 1.28) vs. 0.57 (0.49, 0.89) fmol·L(-) (1), p = 0.034]. Multiple logistic regression analyses showed that plasma levels of big ET-1 were associated with AF recurrence in patients with paroxysmal AF (p  = 0.037). Kaplan-Meier analysis demonstrated that the sinus rhythm maintenance rate was lower in patients with higher big ET-1 levels than those with lower levels (p  < 0.05). CONCLUSIONS: Baseline plasma big ET-1 levels are associated with AF recurrence after primary ablation procedure in patients with paroxysmal AF, and may be used in the prediction of AF recurrence in these patients.

Concepts: Supraventricular tachycardia, Left atrial appendage, Tachycardia, Cardiac electrophysiology, Logistic regression, Atrial flutter, Regression analysis, Atrial fibrillation

25

Due to the increased life expectancy and continual improvements in cardiological treatment options, diseases of the tricuspid valve, in particular tricuspid valve insufficiency will become increasingly more recognized as an interventional target. While tricuspid stenosis is rare and can be effectively treated with balloon valvuloplasty, no effective transcatheter approach to tricuspid regurgitation (TR) has yet been established. As the tricuspid annulus is a complex and highly dynamic structure that offers little resistance, orthotopic long-term fixation of transcatheter valves with the current techniques is challenging and has not yet been performed in human patients. Alternative treatment concepts include transcatheter caval valve implantation (CAVI) to address the regurgitation of blood into the caval veins, which has resulted in hemodynamic improvement and is currently undergoing further clinical investigation. Other interventional treatment concepts are aimed at tricuspid valve repair, e.g. by annular plication with the Mitralign™ device or the TriCinch™ system. In the medium-term it can be assumed that percutaneous systems and therapy options will become available for these indications whereby the functional and prognostic effects of these treatment procedures will be corroborated in the appropriate patient groups by corresponding studies.

Concepts: Annulus, Right atrium, Abstraction, Valvular heart disease, Heart, Regurgitation, Tricuspid insufficiency, Tricuspid valve

12

The individual amount of alcohol consumed acutely or chronically decides on harm or benefit to a person’s health. Available data suggest that one to two drinks in men and one drink in women will benefit the cardiovascular system over time, one drink being 17.6 ml 100 % alcohol. Moderate drinking can reduce the incidence and mortality of coronary artery disease, heart failure, diabetes, ischemic and hemorrhagic stroke. More than this amount can lead to alcoholic cardiomyopathy, which is defined as alcohol toxicity to the heart muscle itself by ethanol and its metabolites. Historical examples of interest are the Munich beer heart and the Tübingen wine heart. Associated with chronic alcohol abuse but having different etiologies are beriberi heart disease (vitamin B1 deficiency) and cardiac cirrhosis as hyperdynamic cardiomyopathies, arsenic poising in the Manchester beer epidemic, and cobalt intoxication in Quebec beer drinker’s disease. Chronic heavy alcohol abuse will also increase blood pressure and cause a downregulation of the immune system that could lead to increased susceptibility to infections, which in turn could add to the development of heart failure. Myocardial tissue analysis resembles idiopathic cardiomyopathy or chronic myocarditis. In the diagnostic work-up of alcoholic cardiomyopathy, the confirmation of alcohol abuse by carbohydrate deficient transferrin (CDT) and increased liver enzymes, and the involvement of the heart by markers of heart failure (e.g., NT-proBNP) and of necrosis (e.g., troponins or CKMb) is mandatory. Treatment of alcoholic cardiomyopathy consists of alcohol abstinence and heart failure medication.

Concepts: Alcoholic beverage, Immune system, Circulatory system, Myocardial infarction, Cardiology, Alcoholism, Blood, Heart

1

Several recent small studies have suggested a causal link between Lyme disease and dilated cardiomyopathy (DCM) by demonstrating the presence of the Borrelia burgdorferi (Bb) genome in the myocardium of patients with recent-onset DCM. The aim of this study was to further investigate the effect of targeted antibiotic treatment of Bb-related recent-onset DCM in a larger cohort of patients.

Concepts: Allen Steere, Borrelia, Lyme disease, Bacteria, Borrelia burgdorferi

0

Although the incidence of acute myocardial infarction and in-hospital mortality after ST-elevation myocardial infarction (STEMI) has declined substantially in countries that have established primary percutaneous coronary interventions (pPCI) over the past two decades, coronary artery disease remains a major cause of morbidity and mortality worldwide. We aimed to examine whether the direct transfer of STEMI patients to the cardiac catheterization laboratory (CCL) had a prognostic effect on in-hospital mortality in patients who underwent pPCI after STEMI.

Concepts: Coronary catheterization, Artery, Percutaneous coronary intervention, Angina pectoris, Atheroma, Coronary artery disease, Atherosclerosis, Myocardial infarction

0

The combination drug sacubitril/valsartan was reported to be superior to enalapril in reducing all-cause death, cardiovascular mortality, and heart failure (HF) hospitalizations in patients with cardiac insufficiency and reduced left ventricular ejection fraction (HFREF) with NYHA class II-IV.

Concepts: Hypertension, Circulatory system, Blood, Heart, Myocardial infarction, Heart failure, Cardiology, Ejection fraction

0

The incidence of cardiovascular diseases can be reduced by the early detection and targeted treatment of risk factors and subclinical forms of the disease. Primary prevention provides several opportunities for successful interventions. In addition to a drug-based therapy, especially life style-modifying measures, such as physical activity, normalization of body weight, consistent nicotine abstinence and the consideration of psychosocial aspects represent core components of prevention programs. Healthcare data indicate that risk factors still often remain undetected and that the full potential of risk factor management has not yet been fully exploited at a population level. Especially motivation of patients and adherence to therapy represent key elements of successful prevention efforts.

Concepts: Geometry, Medical statistics, Risk, The Canon of Medicine, Cardiovascular disease, Medical terms, Medicine, Epidemiology

0

This study evaluated the feasibility of using two-dimensional speckle tracking echocardiography (2D-STE) to monitor left ventricular (LV) and overall function after percutaneous recanalization.

Concepts: Right ventricle, Ventricle, Cardiac anatomy, Heart, Left ventricle

0

The prevalence of heart failure increases with age. Changes in the age distribution and growing life expectancy will lead to a further rise. However, data concerning drug treatment of heart failure especially in the elderly are scarce. Subgroup analyses of the heart failure trials suggest that drug therapy in older patients should follow the recommendations in the current guidelines. In doing so, several common comorbidities in these patients (e. g., impaired renal function) have to be considered and may have an influence on the therapy (e. g., drug dose, choice of active pharmaceutical ingredient, etc.). Especially in old, multimorbid patients, possible interaction of drugs might play a substantial role. In many cases the main goal of the therapy, especially in the very elderly, is to improve symptoms and quality of life.

Concepts: Population, Renal failure, Ageing, Death, Aging, Old age, Gerontology, Pharmacology

0

Lesion length is a major predictor of adverse outcomes after percutaneous coronary intervention. Long lesions often require multiple stents with variable overlap, which increases the probability of geographical miss and the incidence of mechanical complications, such as side-branch occlusion, restenosis, and stent thrombosis. These pitfalls may be avoided by use of an ultra-long device.

Concepts: Coronary stent, Restenosis, Percutaneous coronary intervention, Stent, Cardiology