Search Results
Results 501 - 550 of 1434
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Gao Xiuren - - 2007
BACKGROUND: Patients with congestive heart failure (CHF) often have increased aldosterone activity that leads to hypomagnesemia. Hypomagnesemia can induce arrhythmias, an important cause of death in patients with CHF. We determined whether the aldosterone receptor antagonist spironolactone improved magnesium homeostasis and reduced arrhythmias in patients with CHF. METHODS AND RESULTS: ...
Cottrell Neil - - 2007
The use of an NSAID by individuals with heart failure increases the likelihood of exacerbating the problem. Patients with heart failure were interviewed using a standardized questionnaire to determine their perceptions of the risks involved with the use of an NSAID. Of the 28 patients interviewed, 2 had been advised ...
Mishra T K - - 2007
OBJECTIVES: Acute rheumatic fever (ARF) continues to affect millions of children in developing countries. Aim of the present study was to evaluate the role of myocardial dysfunction in the genesis of heart failure in patients with rheumatic carditis. There are limited studies on this subject. METHODS AND RESULTS: In this ...
O'Connor Christopher M - - 2007
Several life-prolonging therapies are available for the treatment of heart failure, yet they are underutilized in many patients. A treatment gap exists between patients who are eligible for a therapy and the number of patients who actually receive them. Suboptimal prescribing rates for angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, ...
Schaufelberger M - - 2007
In chronic heart failure (CHF) it has been proposed that a dysfunction of the gastrointestinal barrier could lead to translocation of endotoxin into the systemic circulation. A secondary inflammatory reaction, observed as increased levels of cytokines, could negatively affect cardiac function. The aims of this paper were therefore to determine ...
van der Harst Pim - - 2007
OBJECTIVES: This study sought to test the hypothesis that patients with chronic heart failure (CHF) have shorter telomeres compared with age-balanced and gender-balanced healthy individuals. BACKGROUND: Telomere length is considered to be a marker of biological aging. Chronic heart failure might be viewed as a condition associated with accelerated biological ...
Cleland John G F - - 2007
Patients with atrial fibrillation (AF) who also have heart failure have a worse outcome but the diagnosis of heart failure is often missed. To compare the effects of warfarin and ximelagatran on morbidity and mortality in patients with AF with and without markers of heart failure. Data for 7329 patients ...
Andriulli John - - 2007
A distinct advantage of implantable device diagnostics is that the data may be made available on a continuous basis, rather than at sporadic intervals associated with clinical testing. Recently, intrathoracic impedance monitoring has also become available in some implantable devices as an index of congestion and thoracic fluid accumulation secondary ...
Kioka Hidetaka - - 2007
To evaluate the usefulness of cardiac iodine-123 (123I) metaiodobenzylguanidine (MIBG) imaging as a predictor of sudden death in patients with chronic heart failure (CHF). Prospective cohort study in a tertiary referral centre. 97 outpatients with CHF with a radionuclide left ventricular ejection fraction <40% (mean (SD) 29% (7.5%)). At study ...
Di Somma Salvatore - - 2007
Thirty-seven consecutive patients with acute decompensated heart failure (ADHF) admitted to emergency departments for acute dyspnea were investigated. Ten patients with acute exacerbation of chronic obstructive pulmonary disease and 10 patients with hypertension crisis were also included as controls. For each patient, a plasma amino-terminal pro-B-type natriuretic peptide (NTproBNP) concentration ...
Porta A - - 2007
We propose an integrated approach based on uniform quantization over a small number of levels for the evaluation and characterization of complexity of a process. This approach integrates information-domain analysis based on entropy rate, local nonlinear prediction, and pattern classification based on symbolic analysis. Normalized and non-normalized indexes quantifying complexity ...
Niizeki Takeshi - - 2007
BACKGROUND: Heart-type fatty acid-binding protein (H-FABP) is a small cytosolic protein and released into the circulation when the myocardium is injured. Previous studies have demonstrated that both H-FABP and troponin T (TnT) are detectable in venous blood samples in chronic heart failure (CHF) patients, suggesting the presence of ongoing myocardial ...
Daebritz Sabine H - - 2007
The number of grown-up patients with congenital heart disease (GUCH) is constantly increasing and will equal the number of children requiring surgery for congenital heart disease (CHD). Specialized centers dealing with the medical and paramedical problems of these patients are required. GUCH patients can be divided into the following groups: ...
Ingle Lee - - 2007
BACKGROUND: The 6 min walk test (6-MWT) is a simple and popular test for evaluating functional status in patients with chronic heart failure (CHF). However, the prognostic value of the 6-MWT in a large, representative sample of CHF patients, and in patients with different degrees of left ventricular systolic dysfunction ...
Vitarelli Antonio - - 2007
Mechanistic studies, observational evaluations, and randomized trials have consistently demonstrated the beneficial effects of cardiac resynchronization therapy (CRT) in patients with moderate-to-severe chronic systolic heart failure and ventricular dyssynchrony who have failed optimal medical treatment. However, despite the promising results, in some patients undergoing CRT, the symptoms of heart failure ...
Vollmann Dirk - - 2007
AIMS: To evaluate the utility of intrathoracic impedance monitoring for detecting heart failure (HF) deterioration in patients with an implanted cardiac resynchronization/defibrillation device. METHODS AND RESULTS: Patients enrolled in the European InSync Sentry Observational Study were audibly alerted by a device algorithm if a decrease in intrathoracic impedance suggested fluid ...
Metra Marco - - 2007
The beneficial effects of beta-blocker therapy in patients with heart failure have been consistently shown by multi-center randomised trials. These agents are effective and also relatively well tolerated in the elderly and in patients with diabetes and advanced heart failure--traditionally considered as relative contraindications to their administration. However, the use ...
Siednienko Jakub - - 2007
BACKGROUND: Inflammatory immune mechanisms are involved in the pathogenesis and progression of chronic heart failure (CHF), and also promote the development of generalised body wasting seen in this syndrome. We examined the activity of nuclear factor kappa-B (NF-kappaB), the major mediator of immune response, in peripheral blood mononuclear cells (PBMC) ...
Köhnlein Thomas - - 2007
Chronic severe heart failure is frequently associated with disturbances in the central control of breathing. During wakefulness, central breathing disorders could be ameliorated with beta-blocker treatment, but nothing is known about the effects of beta-blockers on the control of breathing during sleep. This study intends to determinate the prevalence and ...
Dursun B - - 2007
Leptospirosis is a re-emerging spirochetal zoonosis with a worldwide distribution affecting both animals and humans. The clinical syndromes may vary from a subclinical infection to a severe illness. Although it may potentially have a fulminant and fatal course, leptospirosis usually remains as an underdiagnosed cause of multiorgan failure. In this ...
Pop Dana - - 2007
Tumor necrosis factor (TNF-alpha) and plasma levels of soluble tumor necrosis factor receptor I (sTNFR-I) are increased in patients with heart failure as an expression of chronic inflammation, representing a negative prognostic factor. Anemia and low serum lipid fraction are also negative prognostic factors, whose relationship with sTNFR-I has been ...
Morshuis M - - 2007
Patients who develop cardiogenic shock after acute myocardial infarction have a very high mortality rate despite early reperfusion therapy. Hemodynamic stabilization can often only be achieved by implanting a mechanical circulatory support system. When, in cases representing expansive myocardial impairment without any chance of recovery, pharmacological therapy and the use ...
Kubo Shinya - - 2007
Repolarization alternans, which can be detected clinically as microvolt-level T-wave alternans (TWA), is considered an important mechanism underlying the initiation of ventricular tachycardia/ventricular fibrillation (VT/VF) linked to sudden cardiac death (SCD). Recently, the rennin-angiotensin system (RAS) inhibitors have been suggested to have potential benefits in reducing SCD as well as ...
Sukova Jana - - 2007
Elevation of troponin I (TnI), a sensitive marker of myocardial cell injury, has been described in a portion of patients with chronic heart failure and acute decompensated heart failure. The proportion and characteristics of patients with TnI elevation in an unselected population with acute left heart failure (AHF) are, however, ...
Sampaio Roney O - - 2007
Rheumatic fever (RF) is a sequel of group A streptococcal throat infection and occurs in untreated susceptible children. Rheumatic heart disease (RHD), the major sequel of RF, occurs in 30%-45% of RF patients. RF is still considered endemic in some regions of Brazil and is responsible for approximately 90% of ...
de Groote Pascal - - 2007
Bisoprolol fumarate is a highly selective beta-1 receptor blocker. Bisoprolol has been extensively studied in three large mortality trials in stable chronic heart failure (CHF) patients. The CIBIS trial enrolled 641 patients and demonstrated the good tolerability of bisoprolol in a large CHF population, without evidence for any harmful effect. ...
Zuluaga Lina - - 2007
To establish the relationship between production of glutathione and the therapeutic response to amodiaquine (AQ) monotherapy in Plasmodium falciparum non-complicated malaria patients. Therapeutic response to AQ was evaluated in 32 patients with falciparum malaria in two townships of Antioquia, Colombia, and followed-up for 28 days. For every patient, total glutathione ...
Arslan Sakir - - 2007
The study was designed to evaluate the prognostic value of the 6-minute walk test in stable outpatients with heart failure. We prospectively studied 43 patients (6 women and 37 men) who had chronic heart failure secondary to ischemic heart disease or idiopathic cardiomyopathy. All patients had left ventricular systolic dysfunction ...
Guglin Maya M Wayne State University, Detroit, Michigan 48201, USA. - - 2007
Aldosterone antagonists have been proven to be beneficial in severe heart failure (HF) as a result of systolic dysfunction. We sought to determine if there is a disparity in their utilization compared with ACE inhibitors and beta-adrenoceptor antagonists (beta-blockers). In the first part of the study, we asked physicians to ...
Sobieszczańska Małgorzata - - 2007
The present study was aimed at possible modifications of resting HR induced by systematic physical training in patients of different age populations with ischemic heart disease (IHD) subjected to chronic therapeutic beta-blockade. The goal was the assessment of initial resting heart rate (HR) and its change after 6 months of ...
Duffels M G J - - 2007
BACKGROUND: Pulmonary arterial hypertension (PAH) associated with congenital heart disease is usually the result of a large systemic-to-pulmonary shunt, and often leads to right ventricular failure and early death. The purpose of this study was to determine the prevalence of PAH among adult patients included in a national registry of ...
Formiga Francesc - - 2007
BACKGROUND AND AIMS: Many precipitating factors for decompensation of a chronic, stable heart failure (HF) have been described. OBJECTIVES: To evaluate the precipitating factors associated with HF decompensation among 293 patients admitted to a teaching hospital because of acute HF. RESULTS: 173 women and 120 men were included, and mean ...
Engelfriet Peter M - - 2007
To investigate the role of pulmonary arterial hypertension (PAH) in adult patients born with a cardiac septal defect, by assessing its prevalence and its relation with patient characteristics and outcome. From the database of the Euro Heart Survey on adult congenital heart disease (a retrospective cohort study with a 5-year ...
Arroyo Maximiliano - - 2006
Heart failure is thought to be more common and of greater severity in African-Americans (AAs). Potential mechanisms remain uncertain. The importance of micronutrient deficiencies in the pathophysiologic expression of congestive heart failure (CHF) in AAs remains to be explored, including hypovitaminosis D, which can promote secondary hyperparathyroidism (SHPT), together with ...
VanSuch Monica - - 2006
BACKGROUND: Most nationally standardised quality measures use widely accepted evidence-based processes as their foundation, but the discharge instruction component of the United States standards of Joint Commission on Accreditation of Healthcare Organizations heart failure core measure appears to be based on expert opinion alone. OBJECTIVE: To determine whether documentation of ...
Siirilä-Waris Krista - - 2006
AIMS: Acute heart failure (AHF) is associated with poor prognosis and requires recurrent hospitalizations. However, studies on AHF characteristics, treatment, and prognostic factors are few. Our aim was to investigate the characteristics, treatment, and 1-year prognosis of AHF and identify prognostic factors in different clinical groups. METHODS AND RESULTS: We ...
Cooke William H - - 2006
INTRODUCTION: The high frequency to low frequency ratio (HF/LF) derived from analysis of heart period variability is elevated and associated with mortality in severely injured patients monitored in a hospital. The purpose of this study was to test the utility of heart period variability measurements as indicators of injury severity ...
Delgado Reynolds M - - 2006
Anemia is prevalent in patients with chronic heart failure and is associated with worse symptoms and poor prognosis. The authors reviewed the charts of all patients (N=467) treated at Texas Heart Institute from January 2000 to October 2003, during which time a clinical protocol offered treatment with erythropoiesis-stimulating proteins. Post-treatment, ...
Verstappen Amy - - 2006
This article presents the adult congenital heart disease (ACHD) patient "voice" by high-lighting issues and challenges commonly identified in peer support forums but rarely addressed in the existing literature. Representative patient quotations are provided, and relevant research on patient education and psychosocial function is referenced. Issues discussed include the provision ...
Ahmed Ali - - 2006
Prior studies demonstrating significant difference in outcomes in systolic and diastolic heart failure (HF) are often limited to hospitalized acute HF patients, and may be confounded by residual bias. In this analysis, we examined long-term mortality and hospitalization in a propensity score matched cohort of ambulatory chronic systolic and diastolic ...
White James A - - 2006
OBJECTIVES: We evaluated the ability of delayed enhancement magnetic resonance imaging (DE-MRI) to predict clinical response to cardiac resynchronization therapy (CRT). BACKGROUND: Cardiac resynchronization therapy reduces morbidity and mortality in selected heart failure patients. However, up to 30% of patients do not have a response. We hypothesized that scar burden ...
Dotsenko O - - 2007
Chronic heart failure (CHF) is traditionally associated with increased risk of thromboembolic complications. Key features of CHF pathophysiology, such as impairment of intracardiac hemodynamics, peripheral blood flow deceleration, neuroendocrine activation, chronic oxidative stress and proinflammatory changes, could explain the predisposition to thromboembolism. However, conclusive epidemiologic data on thromboembolic event incidence ...
Lee Raymond - - 2007
BACKGROUND: We sought the value of the 6-min walk test (6MWT) in predicting morbidity and mortality in Asian patients with congestive heart failure (CHF). METHODS: 668 patients (Age 66+/-12 years, Ejection fraction 29+/-13%, NYHA I to IV) were prospectively followed up for 36+/-12 months. 386 patients (58%) took the 6MWT. ...
Vazir A - - 2007
Sleep disordered breathing (SDB) is common in severe chronic heart failure (CHF) and is associated with increased morbidity and mortality. The prevalence of SDB in mild symptomatic CHF is unknown. The aim of this study was to determine the prevalence and characteristics of SDB in male patients with NYHA class ...
Oldenburg Olaf - - 2007
Evaluation of the prevalence and nature of sleep-disordered breathing (SDB) in patients with symptomatic chronic heart failure (CHF) receiving therapy according to current guidelines. We prospectively screened 700 patients with CHF (NYHA class> or =II, LV-EF< or =40%) for SDB using cardiorespiratory polygraphy (Embletta). Furthermore, echocardiography, cardiopulmonary exercise and 6-min ...
Dobre Daniela - - 2007
The effects of beta-blockers in patients with heart failure (HF) and preserved left ventricular ejection fraction (LVEF) are not well established. To assess the association between beta-blocker prescription at discharge and mortality in a cohort of patients with advanced HF and preserved LVEF. We prospectively studied a cohort of 443 ...
Tsurugaya Hideki - - 2006
BACKGROUND: The minute ventilation/carbon-dioxide output (VE/VCO2) slope as a marker of cardiac events has been established in patients with severe heart failure, but it is not known whether it is useful for other heart diseases. METHODS AND RESULTS: The present study investigated 215 patients with various heart diseases (age 59+/-11 ...
Yadav Raj Kumar - - 2006
Systemic sclerosis (SSc) is a systemic connective tissue disease characterized by vasomotor disturbances. Autonomic dysfunction has been implicated in the pathogenesis of various symptoms in patients with SSc. In this retrospective study, thirty patients with SSc as cases and thirty age matched healthy subjects were enrolled as controls. The patients ...
Vayisoglu Yusuf - - 2006
OBJECTIVE: To evaluate the autonomic nervous system in vasomotor rhinitis patients using heart rate variability parameters. PATIENTS AND METHODS: The heart rate variability parameters (SDANN, SDNN, SDNN index, RMSSD, pNN50, triangular index) of 26 patients with vasomotor rhinitis were compared with those of 25 control subjects. RESULTS: The decrease in ...
Jelic Sanja - - 2006
COPD affects up to one third of patients with chronic heart failure. The coexistence of COPD and chronic heart failure presents clinicians with diagnostic and therapeutic challenges. Measurement of B-type natriuretic peptide plasma levels facilitates the diagnosis of acute dyspnea in patients known to have both COPD and chronic heart ...
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