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Longenecker Joseph C - - 2012
BACKGROUND/OBJECTIVES: This study assesses adherence to performance measures for acute myocardial infarction (AMI) in six Middle-Eastern countries, and its association with in-hospital mortality. Few studies have previously assessed these performance measures in the Middle East. METHODS: This cohort study followed 5813 patients with suspected AMI upon admission to discharge. Proportions ...
Eikelboom John W - - 2012
Despite major advances in the management of heart failure with angiotensin-converting-enzyme inhibitors, beta-blockers, and resynchronization therapy, there are more than 1 million hospitalizations for heart failure in the United States each year, and mortality remains high.(1) As compared with the general population, patients with heart failure have an increased risk ...
Wehland Markus - - 2012
This review provides a systematic overview of the influence of the third generation beta-adrenoceptor antagonists on vascular and/or endothelial function at a cellular level as well as of the advantages of their application in hypertension, heart failure and coronary artery disease. Drugs antagonizing the beta-adrenoceptors have been in use for ...
Tousoulis Dimitris - - 2012
Heart failure (HF) represents a complex multifactorial syndrome, characterized by crucial structural and functional abnormalities of the myocardium. Matrix metalloproteinases are associated with left ventricular dysfunction, adverse left ventricular remodelling and prognosis after acute myocardial infarction. There is a strong association between oxidative stress and MMPs in the pathophysiology of ...
Ruiz Bailén M - - 2012
Right ventricular infarction is a not uncommon cause of cardiogenic shock, whose frecuency is variable and could be underestimated. Although left ventricular myocardial management is well defined in the right ventricular infarction are few studies with low level of evidence, to establish definitive guidelines. It is assumed that the treatment ...
Furck Anke K - - 2012
Severe left ventricular outflow obstruction often is associated with diastolic left ventricular myocardial dysfunction and tachycardia despite successful initial treatment. The authors have used esmolol to lower heart rate in this setting for successful weaning of patients from ventilation in postoperative recovery. Their limited experience supports the beneficial effect of ...
Leenders Geert E - - 2012
Septal rebound stretch (SRSsept) is a distinctive characteristic of discoordination-related mechanical inefficiency. We assessed how intermediate- and long-term outcome after cardiac resynchronization therapy (CRT) relate to baseline SRSsept. A total of 101 patients (age 65 ± 11 years, 69 men, 18 New York Heart Association (NYHA) class IV, QRS 173 ...
So Petsy Pui-Sze - - 2012
Pulmonary arterial hypertension (PAH) is a disorder in which pulmonary arterial remodeling and vasoconstriction progressively lead to right heart failure (HF), exercise intolerance, and high mortality. Beta-blockers have been shown to decrease mortality in left-sided HF, but their efficacy in isolated right HF associated with PAH is uncertain. Patients with ...
Nevzorov Roman - - 2012
The importance of heart failure with preserved ejection fraction is being increasingly recognized. However, there is a paucity of data about effective treatment for this condition. The present study investigated the impact of beta blocker therapy for 3months before admission on the two-year survival of patients with heart failure and ...
Swedberg Karl - - 2012
OBJECTIVES: The authors used the SHIFT (Systolic Heart failure treatment with the I(f) inhibitor ivabradine Trial) database to assess the impact of background beta-blocker dose on response to ivabradine. BACKGROUND: In systolic heart failure, reduction in relatively high heart rates improves clinical outcomes when achieved with beta-blockers and even more ...
Islam M - - 2012
In this paper, a new feature named heart-beat shape (HBS) is proposed for ECG-based biometrics. HBS is computed from the morphology of segmented heart-beats. Computation of the feature involves three basic steps: resampling and normalization of a heart-beat, reduction of matching error, and shift invariant transformation. In order to construct ...
Spoladore Roberto - - 2012
Beta-blockers have been shown to improve left ventricular (LV) function in patients with heart failure. The aim of this study is to non-invasively assess, by means of in vivo 31P-magnetic resonance spectroscopy (31P-MRS), the effects of beta-blockers on LV cardiac phosphocreatine and adenosine triphosphate (PCr/ATP) ratio in patients with heart ...
Holt Natalie F - - 2012
Cardiovascular complications are the most common cause of perioperative morbidity and mortality. Noninvasive stress testing is rarely helpful in assessing risk, and for most patients there is no evidence that coronary revascularization provides more protection against perioperative cardiovascular events than optimal medical management. Patients likely to benefit from perioperative beta ...
Oliveira Felipe Carvalho de - - 2012
INTRODUCTION: Advanced Life Support guidelines recommend the use of epinephrine during Cardiopulmonary Resuscitaion (CPR), as to increase coronary blood flow and perfusion pressure through its alpha-adrenergic peripheral vasoconstriction, allowing minimal rises in coronary perfusion pressure to make defibrillation possible. Contrasting to these alpha-adrenergic effects, epinephrine's beta-stimulation may have deleterious effects ...
Kezerashvili Anna - - 2012
Beta-Blockers [BB] have been used extensively in the last 40 years after acute myocardial infarction [AMI] as part of therapy and in secondary prevention. The evidence for "routine" therapy with beta-blocker use post AMI rests largely on results of trials conducted over 25 years ago. However, there remains no clear ...
Taksande Amar - - 2012
Beta-Thalassaemia Major is a genetic blood disorder caused by the reduced synthesis of beta globin chain. The consequences of the resulting chronic anaemia are also common and include growth retardation, bone marrow expansion, extramedular hematopoiesis, splenomegaly, increased intestinal iron absorption, susceptibility to infections, and hypercoagulability. Transfusional iron overload can affect ...
Lymperopoulos Anastasios - - 2012
Despite significant advances in pharmacological and clinical treatment, heart failure (HF) remains the number one killer disease in the western world. HF is a chronic and progressive clinical syndrome mainly characterized by reduction in left ventricular ejection fraction and adverse remodeling of the myocardium. One of its hallmark molecular abnormalities ...
Tsiachris Dimitris - - 2012
Coronary flow reserve (CFR) is impaired and urinary albumin excretion is increased in patients with essential hypertension. Our aim was to investigate the associations between CFR and cardiac and renal damage in hypertensives. For this purpose we studied 37 never-treated hypertensives (57.9 years old, 16 men) without chest pain but ...
Mellor K E - - 2012
Serum Potassium Levels and Mortality in Acute Myocardial Infarction Goyal A et al. JAMA. 2012; B157-164 The importance of potassium homeostasis in the post-infarction period has become a cornerstone in modern clinical practice. Several studies have shown that potassium levels of less than 3.5 led to a higher risk of ...
Fu Yongnan - - 2012
Beta-adrenoceptors (ARs), members of the G protein-coupled receptor (GPCR) superfamily, play a key role in the rapid regulation of myocardial function. Meanwhile, chronic catecholamine stimulation of adrenoceptors has been proved to be involved in the adverse myocardial remodeling, including cardiac hypertrophy, fibrosis, and apoptosis, which finally develop into heart failure. ...
Steg Ph Gabriel - - 2012
Heart rate (HR) is an emerging risk factor in coronary artery disease (CAD). However, there is little contemporary data regarding HR and the use of HR-lowering medications, particularly beta-blockers, among patients with stable CAD in routine clinical practice. The goal of the present analysis was to describe HR in such ...
Aragón Juan P - - 2011
This paper examined whether nebivolol protects the heart via nitric oxide (NO) synthase and NO-dependent signaling in an in vivo model of acute myocardial infarction. Beta(3)-adrenergic receptor (AR) activation promotes endothelial nitric oxide synthase (eNOS) activity and NO bioavailability. We hypothesized that specific beta(3)-AR agonists would attenuate myocardial ischemia-reperfusion (MI/R) ...
Lambooij E - - 2011
Brain and heart activities were measured in 31 veal calves during restraining and rotating followed by neck cutting with or without stunning to evaluate welfare. After neck cutting Correlation Dimension analyses and %power of EEG beta wave fraction decreased gradually to lower values resulting in an induction of unconsciousness lasting ...
Banerjee Indroneal - - 2012
Thymosin beta 4 (Tβ4) is a 43-amino acid factor encoded by an X-linked gene. Recent studies have suggested that Tβ4 is a key factor in cardiac development, growth, disease, epicardial integrity, and blood vessel formation. Cardiac-specific short hairpin (sh)RNA knockdown of tβ4 has been reported to result in embryonic lethality ...
Rudzinski Wojciech - - 2011
Inability to achieve 85% of the maximum age-predicted heart rate (MPHR) on dobutamine stress echocardiography (DSE) is defined as chronotropic incompetence and is a predictor of major cardiac events after orthotopic liver transplantation (OLT). The majority of end-stage liver disease (ESLD) patients receive beta-blockers for prevention of variceal bleeding. In ...
Rademakers Leonard M - - 2011
A 72-year-old woman without cardiovascular history presented with acute substernal chest pain and dyspnoea. The electrocardiogram was normal, but the blood test analyses showed an elevated troponin T level. Emergency coronary angiography revealed normal epicardial coronary arteries, but the left ventriculogram demonstrated midventricular dilatation and akinesis with well-preserved contractility of ...
Pflaumer Andreas - - 2012
Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT) is an inherited arrhythmia syndrome, characterised by polymorphic ventricular tachycardia induced by adrenergic stress. CPVT can be caused by mutations the cardiac ryanodine receptor gene (RYR2) or mutations in the cardiac calsequestrin gene CASQ2. Structural heart disease is usually absent and the baseline ECG is ...
Okada David R - - 2011
A 41-year-old woman with a history of neurocardiogenic syncope treated with beta-blockers was admitted with chest pain. Dobutamine echocardiogram images demonstrated decreased global LV systolic wall motion and thickening. Coronary angiograms were normal. Beta-blockers were stopped and dobutamine stress echocardiogram (DSE) was repeated. Dobutamine images demonstrated increased global LV systolic ...
Alves Marco G - - 2011
ABSTRACT: Understanding heart metabolism during preservation is crucial to develop new effective cardioplegic solutions. We aim to investigate metabolic alterations during heart preservation in the clinically used Celsior (Cs) and Histidine Buffer solution (HBS). We also focused in gender-specific metabolic adaptations during ischemia.We followed energy metabolism in hearts from males ...
Gayet Jean-Louis - - 2011
Stable angina is a form of coronary artery disease. Its potential to progress requires the most appropriate treatment in order to reduce the incapacitating effect of an acute angina attack and to avoid long-term cardiovascular events. With or without revascularization, pharmacological treatment is an essential component of this treatment strategy, ...
Calò Leonardo - - 2011
Background: Microvolt T-wave alternans (MTWA) has been proposed as a predictor of the risk of ventricular tachyarrhythmias (VT) and sudden cardiac death (SCD). Aim of this study was to perform a systematic review of the literature and a meta-analysis of MTWA in primary prevention patients with ischemic and nonischemic cardiomyopathy. ...
Dündar Cihan - - 2011
PURPOSE: Anemia is a common comorbidity in patients presenting with ST-elevation myocardial infarction (STEMI). The aim of this study was to investigate the in-hospital prognostic value of admission hemoglobin (Hb) levels in patients with acute STEMI undergoing primary percutaneous coronary intervention (p-PCI). METHODS: This is a retrospective study of 1,625 ...
Kertai M D - - 2011
To investigate the combined beneficial effect of statin and beta-blocker use on perioperative mortality and myocardial infarction (MI) in patients undergoing abdominal aortic aneurysm surgery (AAA). Patients undergoing elective AAA-surgery identified by clinical risk factors and dobutamine stress echocardiography (DSE) as being at high-risk often have considerable cardiac complication rate ...
Garcia-Moll Xavier - - 2011
INTRODUCTION AND OBJECTIVES: Beta-blocker treatment has a class I indication, level of evidence A, in guidelines for the treatment of heart failure, ischemic heart disease, and atrial fibrillation. However, beta-blocker use continues to be less than optimal. In this study, beta blocker use in Spain is analyzed in patients with ...
Alves Marco G - - 2011
Cardiomyocytes undergo apoptosis in response to ischemia and ischemia/reperfusion (I/R). During heart preservation, inhibition of apoptosis is critical to avoid organ failure. We aimed to compare the protection afforded by Celsior (Cs) and Histidine-buffer solution (HBS) against apoptotic signaling in hearts subjected to moderate (4h) vs. severe (6h) ischemia alone ...
Staykov Dimitre - - 2011
Intraventricular hemorrhage (IVH) has been associated with poor prognosis in patients with spontaneous intracerebral hemorrhage. Several factors contribute to the deleterious effects of IVH, including direct mass effects of the ventricular blood clot on ependymal and subependymal brain structures, mechanical and inflammatory impairment of the Pacchioni granulations by blood and ...
Arós Fernando - - 2011
INTRODUCTION AND OBJECTIVES: To determine whether mortality from acute myocardial infarction has reduced in Spain and the possibly related therapeutic factors. METHODS: Nine thousand, nine hundred and forty-nine patients with ST-segment elevation myocardial infarction admitted to the Coronary Care Unit were identified from PRIAMHO I, II and MASCARA registries performed ...
Guglin Maya - - 2011
The function of the right ventricle (RV) in heart failure (HF) has been mostly ignored until recently. A 2006 report of the National Heart, Lung, and Blood Institute identified a gap between RV research efforts and its clinical importance compared with that of the left ventricle. This recent shift in ...
Caccamo Marco A - - 2011
Congest Heart Fail. 2011;17:213-219. © 2011 Wiley Periodicals, Inc. As the incidence of heart failure increases, the number of patients with advanced heart failure is anticipated to grow. Substantial progress in the treatment of heart failure has been achieved over the past few decades. Several classes of medications have been ...
Mittal Mayank K - - 2011
Heart failure (HF) is a leading cause of morbidity and mortality. Appropriate medical therapy using angiotensin converting enzyme inhibitors and beta-blockers improves outcomes in HF, whereas the role of digoxin is still not clearly defined. Digoxin is currently recommended for patients with HF who are symptomatic despite standard therapy and ...
Rademaker Miriam T - - 2011
OBJECTIVES: The challenge in management of acute decompensated heart failure (ADHF) is relieving congestion and improving symptoms while preserving renal and systemic perfusion at a level that can tolerate introduction of drugs such as beta-blockers which may have adverse effects acutely yet have proven benefit in the longer term. Urocortin ...
de Marchi Stefano F - - 2011
Background: Coronary collaterals protect myocardium jeopardized by coronary artery disease (CAD). Promotion of collateral circulation is desirable before myocardial damage occurs. Therefore, determinants of collateral preformation in patients without CAD should be elucidated. Methods: In 106 patients undergoing coronary angiography who were free of coronary stenoses, a total of 39 ...
Bayraktaroglu Selen - - 2011
PURPOSE: Cardiac involvement in thalassemia major (TM) is mainly characterized by left ventricular dysfunction caused by iron overload. Cardiovascular magnetic resonance (CMR) imaging including myocardial T2* measurement is becoming increasingly popular for quantitatively evaluating myocardial iron overload. The aim of this study was to evaluate the relationship between the myocardial ...
- - 2011
BACKGROUND: The hemoglobin (Hb) level is an essential determinant of oxygen delivery. The restoration of blood perfusion to vital organs and the capacity for oxygen delivery may be associated with ischemia and reperfusion injuries during cardiac arrest and after cardiac arrest. However, whether the Hb level is associated with neurologic ...
Braithwaite R Scott - - 2011
To identify cardiovascular health services with a high level of evidence to suggest that they deliver favorable value. Evidence synthesis using the Cost-Effectiveness Analysis Registry. We queried the registry to identify published cost-effectiveness analyses of cardiovascular health services in the United States. In addition to searching the registry, we performed ...
Yan Ling - - 2011
Mindin is a secreted extracellular matrix protein, an integrin ligand, and an angiogenesis inhibitor, other examples of which are all key players in the progression of cardiac hypertrophy. However, its function during cardiac hypertrophy remains unclear. This study was aimed to identify the effect of mindin on cardiac hypertrophy and ...
Bakker E J - - 2011
OBJECTIVES: This article describes the rationale and design of the DECREASE-XIII trial, which aims to evaluate the potential of esmolol infusion, an ultra-short-acting beta-blocker, during surgery as an add-on to chronic low-dose beta-blocker therapy to maintain perioperative haemodynamic stability during major vascular surgery. DESIGN: A double-blind, placebo-controlled, randomised trial. MATERIALS ...
McLean Rhondalyn C - - 2011
PURPOSE: Prior studies demonstrate an association between specific beta-adrenergic receptor (β-AR) polymorphisms and clinical outcomes in patients with chronic heart failure and following acute coronary syndromes. The underlying mechanism may be due to differences in left ventricular remodeling. This study was undertaken to explore the relationship between LV remodeling after ...
Meems Laura M G - - 2011
Vitamin D has recently been suggested as an important mediator of blood pressure and cardiovascular disease, including heart failure. In patient with heart failure, low vitamin D levels are associated with adverse outcome and correlate with established clinical correlates and biomarkers. Many precursor states of heart failure, such as hypertension, ...
Pantos Constantinos - - 2011
Chronic ischemia or pressure overload decreases thyroid hormone (TH) signaling and activates the fetal gene program in the heart. While these features are of physiologic importance in the developing heart, their respective roles in the postnatal heart are debated. Administration of TH can prevent the changes of the fetal gene ...
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