Search Results
Results 301 - 350 of 1032
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Kervancioglu Piraye - - 2007
Long-term physical exercise leads to left ventricular morphological adaptations, which vary with the kind of sport and the intensity and extent of the training. Although the echocardiographic changes related to exercise in athletes participating in various sports have been well described, changes associated with football players have been less well ...
Melenovsky Vojtech - - 2007
OBJECTIVES: The purpose of this study was to identify cardiovascular features of patients with heart failure with preserved ejection fraction (HFpEF) that differ from those in individuals with hypertensive left ventricular hypertrophy (HLVH) of similar age, gender, and racial background but without failure. BACKGROUND: Heart failure with preserved ejection fraction ...
Kamath Sandeep - - 2006
Left ventricular hypertrophy (LVH), used in this review to denote abnormally increased left ventricular (LV) mass, is an important cardiac trait because of its association with numerous adverse cardiovascular outcomes including myocardial infarction and heart failure. LV mass is typically assessed by noninvasive cardiac imaging (echocardiography or MRI); electrocardiography is ...
Skwarek M - - 2006
A comparison of the data published in anatomy textbooks and anthropological tables does not reveal any change in basic heart dimensions during the period since the beginning of the 20th century to nowadays. However, normal values of many other parameters have changed up to 30% over the same period. These ...
Chhatriwalla Adnan K - - 2006
OBJECTIVES: To demonstrate that fractional flow reserve (FFR) of vessels in patients with high left ventricular mass index (LVMI) should be similar to that of matched vessels in patients with normal LVMI. BACKGROUND: FFR is a physiologic index of coronary lesion severity. It is not known whether FFR remains useful ...
Graham H K - - 2007
The cardiac extracellular matrix (ECM) maintains the structural and mechanical integrity of the myocardium. We determined the alterations in the composition of the ECM coincident with the transition from compensated left ventricular (LV) hypertrophy (LVH) to symptomatic congestive heart failure (CHF) and the mechanisms underlying such changes. Heart failure was ...
Dursunoglu Nese - - 2007
BACKGROUND: Obstructive sleep apnoea (OSA) has the potential to cause heart failure. We aimed to determine the effects of nasal continuous positive airway pressure (CPAP) therapy on left ventricular structure and myocardial performance index (MPI) in severe OSA patients. METHODS: Sixty-seven subjects without any cardiac or pulmonary disease had overnight ...
Gopal Aasha S - - 2006
BACKGROUND: Left ventricular hypertrophy (LVH) is a common condition that carries an increased risk of cardiovascular events. Use of ECG in detection of LVH is limited because of the reported low sensitivity. Conventional echocardiographic techniques used as the standard for estimating left ventricular (LV) mass have limitations related to the ...
Nesser H Joachim - - 2006
This imaging case report demonstrates abnormal right ventricular masses of primarily unknown origin. The woman was admitted because of right heart failure symptoms. Echocardiography showed the masses exclusively related to the right ventricular endomyocardium and extending through the entire length and breadth of the ventricle. Systolic function was normal without ...
Zoccali Carmine - - 2006
OBJECTIVES AND METHODS: Low free plasma triiodothyronine (fT3) is associated with inflammation and cardiovascular damage in patients with end-stage renal disease (ESRD). We investigated the relationship between fT3, left ventricular systolic function and left ventricular mass in a group of 234 dialysis patients, and modelled the association between fT3 and ...
Outomuro Delia - - 2006
Cardiac papillary fibroelastoma, though potentially fatal, are rare benign tumours. Therefore, high index of suspicion is needed in order to identify these lesions and to limit complications at surgery or during long-term oral anticoagulation if the patient is not a surgical candidate. We present a case report of unusual location ...
Tomás Juán-Pablo - - 2006
Patients with hypertension have structural and functional changes in conductance and resistance vessels. In the absence of coronary stenosis the coronary microvascular function can be analysed by studying the coronary reserve. The aim of this study was to evaluate, non-invasively, the effect of candesartan on coronary microvascular function in hypertensive ...
Ramaswamy Prema - - 2007
Left ventricular hypertrophy (LVH) is a complication of hypertension that has received great attention in the adult population. Large-scale randomized control studies in adults have demonstrated that LVH regresses in response to pharmacologic intervention. While it is known that LVH occurs as a complication of hypertension in the pediatric population, ...
Hawkins N M - - 2007
Electrocardiographic left ventricular hypertrophy (ECG LVH) is a powerful independent predictor of cardiovascular morbidity and mortality in hypertension. To determine the contemporary prevalence and prognostic implications of ECG LVH in a broad spectrum of patients with heart failure with and without reduced left ventricular ejection fraction (LVEF). METHODS AND OUTCOME: ...
Smith Craig S - - 2006
The progression of pressure-overload left ventricular hypertrophy (LVH) to chronic heart failure (CHF) may involve a relative deficit in energy supply and/or delivery. We measured myocardial creatine kinase (CK) metabolite concentrations and adenosine triphosphate (ATP) synthesis through CK, the primary energy reserve of the heart, to test the hypothesis that ...
Luo J - - 2006
Besides its role as a mechanical pump, the human heart serves as an endocrine organ, where known and as yet unknown hormones are produced. It is very likely that these hormones play an important role in cardiovascular regulation. In this study, a new endogenous vasoactive substance, coenzyme A glutathione disulfide ...
Zhuang Lei - - 2006
OBJECTIVE: To evaluate the feasibility and accuracy of measurement of myocardial perfusion defects with intravenous contrast-enhanced real-time three-dimensional echocardiography (CE-RT3DE). METHODS: RT3DE was performed in 21 open-chest mongrel dogs undergoing acute ligation of the left anterior descending artery (LAD, n = 14) or distal branch of the left circumflex artery ...
de Groot Patricia C - - 2006
OBJECTIVE: To assess the effect of chronic deconditioning on cardiac dimensions and function in subjects with high-level spinal cord injury (SCI), who represent a human in-vivo model of extreme inactivity. DESIGN: Cross-sectional study. SETTING: University medical center. PARTICIPANTS: Seven men with tetraplegia and 7 able-bodied controls. INTERVENTIONS: Not applicable. MAIN ...
Arslan Sakir - - 2007
A 45 year-old asymptomatic man was admitted to preoperative cardiovascular evaluation for noncardiac surgery. Physical examination and ECG were normal. Transthoracic echocardiography showed a 17 x 35 mm suspicious hyperechoic mass in the interventricular septum. Multi-slice computed tomography (MSCT) was used. Volume rendered image and an axial maximal intensity projection ...
Chan Peter G - - 2006
BACKGROUND: Although right bundle branch block (RBBB) delays right ventricular depolarization, its effect on cancellation of right and left ventricular forces within the QRS complex has not been quantified during stable temporal and physiological conditions. Systematic changes in QRS amplitude during transient RBBB bear directly on performance of standard ECG ...
Ratto Elena - - 2006
BACKGROUND: Urinary albumin excretion and left ventricular mass are related to each other and to the risk of cardiovascular events in patients with primary hypertension. We aimed to identify a lower threshold for albuminuria that might improve detection of patients with left ventricular hypertrophy (LVH) and cost-effectiveness in cardiovascular risk ...
Dada A - - 2006
BACKGROUND: Left ventricular hypertrophy (LVH) is a major risk factor for cardiovascular morbidity and mortality. Various electrocardiographic (ECG) criteria for LHV give poorer performance in black subjects when compared with white subjects. Araoye proposed a code system for improved ECG diagnosis of LVH in blacks. The Araoye's criteria are yet ...
Payne J R - - 2006
Increasing left ventricular mass is a risk factor for cardiovascular morbidity and mortality. To examine the possible association of smoking with the left ventricular growth response in men. Left ventricular mass was measured in 309 army recruits before and after an identical 12-week physical training programme. Left ventricular mass was ...
Nurkalem Zekeriya - - 2006
A 69-year-old woman has been complaining from presencop and palpitation for 4 months. Cardiac examination revealed middiastolic rulman, which changed by position. Transthoracic and transesophageal echocardiography showed normal left ventricular function, mild mitral regurgitation and large right and left atrial masses. This mass prolapsed through the mitral valve into the ...
Krauser Daniel G DG New York-Presbyterian Hospital, Weill Cornell Medical Center, New York, NY, - - 2006
Left ventricular hypertrophy (LVH) is a strong, independent predictor of cardiovascular events and all-cause mortality. Patients with LVH are at increased risk for stroke, coronary heart disease, congestive heart failure, and sudden cardiac death. Hypertension is a major influence on the development of LVH. The prognostic power of LVH is ...
Pan Nan-Hung - - 2006
Diabetes is a state of increased oxidant stress and there is evidence that oxidation may play a role in the genesis of higher left ventricular mass. Gliclazide has been shown to possess free radical scavenging properties. We assessed whether gliclazide may have a beneficial effect on left ventricular mass via ...
de las Fuentes Lisa - - 2006
Hypertension-induced left ventricular hypertrophy (LVH) is associated with an increased risk of cardiovascular morbidity and death by mechanisms not well characterized. Myocardial fatty acid (FA) metabolism and left ventricular (LV) mass were evaluated in 13 patients with hypertensive LVH with normal LV ejection fraction and 42 normal control subjects (primary ...
Kirma Cevat - - 2006
A 24 year-old male who presented with palpitations and presyncopal attacks had monomorphic ventricular tachycardia and a well-defined huge mass within the inferoposterior wall of the left ventricle proved by transthoracic echocardiography. The mass was completely resected and shown to be proliferative angiomatosis by histopathologic examination. This is the first ...
Aubin Marie-Claude - - 2006
The lipid-lowering agent probucol may be efficacious, through its antioxidant properties, to limit and reverse the vascular endothelial dysfunction associated with left ventricular hypertrophy (LVH). LVH was induced by performing an aortic banding (AB) on swine, except for controls (group 1). The untreated AB group received a placebo (group 2) ...
Atik Fernando A - - 2006
Right ventricular metastases from renal cell carcinoma without inferior vena cava or right atrium involvement are rare. A 67-year-old male presented with hematuria and congestive heart failure. Computed tomography revealed a left renal mass. In addition, an intra-cardiac mass was found during the preoperative workup, causing right ventricular outflow tract ...
Tan H-W - - 2006
Tissue Doppler Tei index is pointed to be more effective in the evaluation of global cardiac function than systolic and diastolic measurements alone in various heart diseases. This study was designed to assess the effect of cilnidipine on left ventricular function in hypertensive patients by using this index. A group ...
Akram Kamran - - 2007
A 78-year-old Caucasian female presented as an outpatient with a 6-month history of severe progressive exertional dyspnea interfering with ambulating at home. Physical Exam revealed signs of heart failure with laboratory studies being normal. A subsequent echocardiogram revealed a mass in the left ventricle and the patient underwent successful resection ...
Agabiti-Rosei Enrico - - 2006
At some point in the natural history of hypertension, the compensatory increase in left ventricular mass ceases to be beneficial. Left ventricular hypertrophy (LVH) becomes a preclinical disease and an independent risk factor for congestive heart failure, ischemic heart disease, arrhythmia, sudden death, and stroke. In addition to elevated BP, ...
Tang Weihong - - 2006
Studies have reported a lower burden of calcified atherosclerotic plaque in coronary arteries in African-Americans than in whites. Findings from autopsy studies of sudden cardiac death have suggested a link between left ventricular hypertrophy and severity of coronary atherosclerosis. Echocardiograms and cardiac computed tomograms were analyzed in 334 African-American (84% ...
Beer Meinrad - - 2006
The present study evaluated the evolution of cardiac morphology, function, and late enhancement as a noninvasive marker of myocardial fibrosis, and their inter-relation during enzyme replacement therapy in patients with Fabry's disease using magnetic resonance imaging and color Doppler myocardial imaging. Late enhancement, which was present in up to 50% ...
Lunkenheimer Paul P - - 2006
With the increasing interest now paid to volume reduction surgery, in which the cardiac surgeon is required to resect the ventricular myocardium to an extent unenvisaged in the previous century, it is imperative that we develop as precise knowledge as is possible of the basic structure of the ventricular myocardial ...
Männer Jörg - - 2006
The structural and functional organization of the ventricular myocardial mass is a controversial matter that cannot be resolved by anatomical studies alone. Therefore, other approaches such as investigations of the ontogenetic development of the ventricular myocardium might help to resolve controversies about its structural and functional organization. It has recently ...
Rubulis Aigars - - 2006
Epidemiological studies show that left ventricular hypertrophy (LVH) and hypertension (HT) in coronary artery disease increases the risk for cardiovascular events including sudden cardiac death (SCD). According to experimental studies, myocardial hypertrophy is associated both with altered electrophysiological properties (including prolonged repolarization) and increased vulnerability to ischemia. However, human data ...
Biagetti Marcelo O - - 2006
BACKGROUND: Left ventricular hypertrophy (LVH) is associated with an increased risk of death, vulnerability to ventricular arrhythmia, and multiple electrophysiological abnormalities. OBJECTIVES: The purpose of the present study was to determine the gender-dependent differences in electrical remodeling and the susceptibility to ventricular arrhythmias in a rabbit model of renovascular hypertension. ...
Gradman Alan H - - 2006
Other than age, left ventricular hypertrophy (LVH) is the most potent predictor of adverse cardiovascular outcomes in the hypertensive population, and is an independent risk factor for coronary heart disease, sudden death, heart failure and stroke. Although directly related to systolic blood pressure, other factors including age, sex, race, body ...
Maskhulia L - - 2006
Over the past several years interest regarding the causes of sudden deaths in young trained athletes has heightened in the medical community. 36% of sudden cardiac death (SCD) in young competitive athletes is due to hypertrophic cadiomyopathy (HCM), while 10% of SCD cases in sports are due to increased cardiac ...
Olcay Ayhan - - 2006
BACKGROUND: The renin-angiotensin-aldosterone system (RAAS) plays an important role in blood pressure regulation, left ventricular and vascular structure. Some hypertensive patients develop left ventricular dilatation and heart failure symptoms while others are relatively less affected. The purpose of our study was to determine whether two major polymorphisms of RAAS are ...
Barbier Julie - - 2006
BACKGROUND: Improvement to maximal oxygen uptake is mainly due to myocardial adaptations brought about by physical training. As a consequence, the athlete's heart echocardiographic modifications associated with these adaptations are already well-known. We studied the relationships between maximal oxygen uptake (ml/min) and resting echocardiographic patterns in three athlete groups. METHODS: ...
Lenstrup M - - 2006
OBJECTIVE: Increased left ventricular mass (LVM) and presence of left ventricular hypertrophy (LVH) are predictors of cardiovascular morbidity and mortality, but can be reversed with proper treatment of the underlying cause. Therefore accurate as well as reproducible methods for diagnosis and follow-up are needed. We evaluated different modalities by which ...
Edvardsen Thor - - 2006
BACKGROUND: Impairment of global diastolic function is considered to be the mechanism of congestive heart failure in individuals with preserved systolic left ventricular (LV) function. Left ventricular hypertrophy (LVH) is known to be a risk factor for congestive heart failure with preserved systolic function, and this process may begin as ...
Sánchez-Torrijos Jorge J Servicio de Cardiología, Consorcio Hospital General Universitario, Valencia, - - 2006
Recent studies show that the prevalence of anemia in patients with heart failure is high and indicate that its presence leads to increased mortality and morbidity. Our aims were to determine the prevalence of anemia in patients hospitalized for heart failure and to study the long-term prognostic significance of anemia ...
Iwashima Yoshio - - 2006
Elevated serum uric acid (UA) is frequently encountered in individuals with hypertension, but whether the relationship between UA and cardiovascular events is circumstantial or causal remains to be answered. We examined the association between serum UA and left ventricular mass index (LVMI) and investigated prospectively whether the combination of UA ...
Jung Albert S - - 2006
L-Arginine, the sole substrate for the nitric oxide (NO) synthase (NOS) enzyme in producing NO, is also a substrate for arginase. We examined normal feline hearts and hearts with compensated left ventricular (LV) hypertrophy (LVH) produced by ascending aorta banding. Using Western blot analysis, we examined the abundance of arginase ...
Carlsson Minna B - - 2006
The ability to estimate left ventricular mass (LVM) from the standard 12-lead electrocardiogram (ECG) has been shown to be limited because there is a considerable variability of the normal 12-lead ECG due to demographic and anthropometric variables. We sought to study LVM in healthy subjects and its relationship with QRS ...
Habedank Dirk - - 2005
BACKGROUND: Cachexia is an independent risk factor for mortality in patients with chronic heart failure and increases mortality even after heart transplantation (HTx). We aimed to determine whether cardiac cachexia is reversible after HTx, and investigated differences specific to gender. METHODS: We prospectively examined 106 patients before and serially 3, ...
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