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Results 301 - 350 of 2329
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Park Duk-Woo - - 2011
The aim of this study was to compare treatment effects of drug-eluting stents (DES) or coronary artery bypass grafting (CABG) for left main coronary artery (LMCA) disease according to the complexity of atherosclerotic disease burden. Limited information is available on the relationships between the extent of coronary atherosclerosis and very ...
Goel Kashish - - 2011
Although numerous studies have reported that cardiac rehabilitation (CR) is associated with reduced mortality after myocardial infarction, less is known about its association with mortality after percutaneous coronary intervention. We performed a retrospective analysis of data from a prospectively collected registry of 2395 consecutive patients who underwent percutaneous coronary intervention ...
Trepte Constantin J - - 2011
OBJECTIVE:: The aim of this study was to assess whether thermodilution-derived parameters of right and left ventricular cardiac function (right ventricular ejection fraction, global ejection fraction, cardiac function index) are able to track changes of cardiac contractile function and whether they are influenced by substantial preload reduction. DESIGN:: Prospective animal ...
Li Shu-Na - - 2011
OBJECTIVE: This study aimed to determine the usefulness of novel parameters of left ventricular (LV) endocardial area strain (AS) in assessing global LV performance in patients with repaired tetralogy of Fallot (TOF). METHODS: Thirty patients, aged 21.7 ± 5.8 years, with repaired TOF and 25 healthy subjects aged 19.9 ± ...
Oka Toshiharu - - 2011
BACKGROUND: The aim of this study was to investigate whether high epicardial adipose tissue (EAT) volume is related to the presence of vulnerable coronary plaque components as assessed by computed tomography (CT). METHODS: We evaluated 357 patients referred for 64-slice CT, and assessed coronary plaque components and EAT volume. Vulnerable ...
Read Philip A - - 2012
Glucagon-like peptide-1 (GLP-1) is an incretin hormone which has been shown to promote myocardial glucose uptake. Its pharmacological properties as a cardioprotective agent are attractive because it has a short half-life and there is minimal risk of hypoglycaemia. To assess the hypothesis that intravenous infusion of GLP-1 would protect the ...
Zuercher Mathias - - 2011
To determine whether the residual weight of a 260 g sternal accelerometer/force feedback device (AFFD) adversely affects hemodynamics during cardiopulmonary resuscitation in a piglet model of ventricular fibrillation cardiac arrest. After induction of ventricular fibrillation, cardiopulmonary resuscitation was provided to ten piglets (10.8 ± 1.9 kg) for 12 min while ...
Lee Douglas S - - 2011
The aim of this study was to determine the impact of myocardial perfusion imaging (MPI) on the outcomes of death, myocardial infarction (MI), and late coronary revascularization procedures. In patients undergoing exercise-stress MPI (January 1, 2003-March 31, 2007), we determined the impact of summed stress score (SSS) and percent left ...
Ilić Stevan - - 2011
Ischemic heart disease is the major cause of morbidity and mortality in the world as well as in our country. Ischemic heart disease has the multifactorial origin and the presence of several risk factors increases the risk of myocardial ischemia. The aim of the study was to evaluate the frequency ...
Wu Xiaofan - - 2011
The aim of this study was to understand the impact of attenuated plaque on distal embolization during stent implantation in patients with acute myocardial infarction (AMI). Attenuated plaques identified by grayscale intravascular ultrasound (IVUS) might predict transient deterioration in coronary flow and/or no-reflow during percutaneous coronary intervention (PCI). We analyzed ...
Gupta Sachin - - 2011
Identifying asymptomatic individuals with American Heart Association/American College of Cardiology stage B heart failure (HF) in the population is an important step to prevent the development of symptomatic HF. The comparative utility of 2 screening strategies (biomarkers vs risk scores) in identifying prevalent stage B HF is unknown. Participants 30 ...
Mehta Puja K - - 2011
We conducted a pilot study for a large definitive clinical trial evaluating the impact of ranolazine in women with angina, evidence of myocardial ischemia, and no obstructive coronary artery disease (CAD). Women with angina, evidence of myocardial ischemia, but no obstructive CAD frequently have microvascular coronary dysfunction. The impact of ...
Akintunde Adeseye A - - 2011
Left ventricular geometry is associated with cardiovascular events and prognosis. The Tei index of myocardial performance is a combined index of systolic and diastolic dysfunction and has been shown to be a predictor of cardiovascular outcome in heart diseases. The relationship between the Tei index and left ventricular geometry has ...
Chen Shih-Jen - - 2011
Computed tomographic coronary angiography (CTA) is a non-invasive alternative to conventional coronary angiography (CCA) in detecting chronic coronary artery disease (CAD). However, the value of CTA in estimating acute myocardial infarction (AMI) has not been evaluated. CTA and CCA were performed on 10 patients with non-ST-elevated AMI and 17 patients ...
Kim Ju Han - - 2011
The Thrombolysis in Myocardial Infarction (TIMI) risk score (TRS) has proven value in predicting prognosis in unstable angina/non ST-elevation myocardial infarction (NSTEMI) as well as in ST-elevation myocardial infarction. The TRS system has little implication, however, in the extent of myocardial damage in high-risk patients with NSTEMI. A total of ...
Papoutsidakis Nikolaos - - 2011
There is accumulating clinical evidence that acute liver failure may be regularly associated with myocardial injury. To test this hypothesis in a standardized experimental setting, we used two porcine models of ALF. In 14 domestic pigs ALF was induced by either a) surgical devascularization of the liver (DV group, n ...
Ionac A - - 2011
In this study we aimed to evaluate the three-dimensional (3D) transthoracic echocardiography (TTE) in the assessment of cardiac valve morphology. Bidimensional (2D) and real-time 3D TTE was performed in 104 patients consecutive with cardiac catheterisation, prior to valve surgery. Using surgical findings as the gold standard, 2D and 3D TTE ...
Hanssen Henner - - 2011
Recent reports provide indirect evidence of myocardial injury and ventricular dysfunction after prolonged exercise. However, existing data is conflicting and lacks direct verification of functional myocardial alterations by CMR [cardiac MR (magnetic resonance)]. The present study sought to examine structural myocardial damage and modification of LV (left ventricular) wall motion ...
Clur S A B - - 2011
Trisomy 21 is associated with an increased nuchal translucency thickness (NT), abnormal ductus venosus (DV) flow at 11-14 weeks' gestation and congenital heart defects (CHD), and cardiac dysfunction has been hypothesized as the link between them. We therefore aimed to investigate whether cardiac function is altered in trisomy 21 fetuses. ...
Shahabi Venous - - 2011
Rapid measuring of B-type natriuretic peptide (BNP) in the emergency departments effectively results in evaluating patients with acute cardiac attacks and has appeared to be a useful prognostic marker of cardiovascular risk. A current study came to address the association between plasma N-terminal pro BNP level and severity of coronary ...
Comas M - - 2011
To construct gestational age (GA)- and estimated fetal weight (EFW)-adjusted reference ranges for tissue Doppler cardiac function parameters from 24 to 41 weeks' gestation. This was a prospective cross-sectional observational study involving 213 singleton pregnancies between 24 and 41 weeks' gestation. Myocardial peak velocities and myocardial performance index (MPI') were ...
Ke Dazhi - - 2011
Objective In the aged population, serum cholesterol is directly correlated with coronary heart disease (CHD) risk. We aimed to investigate the correlation between non-high density lipoprotein cholesterol (non-HDL-C) level and CHD and coronary lesions in an aged population. Methods 1,272 cases of old patients who were more than 65 years ...
Nakajima Kenichi - - 2011
Myocardial perfusion imaging (MPI) has been used to estimate cardiac event risk. The aim of the present study is to achieve stable risk estimation based on perfusion scoring and a multi-center prognostic database. Multivariate logistic regression analysis was performed to estimate cardiac event risk based on a J-ACCESS study. A ...
Che Jingjin - - 2011
Background: The relationship between autoantibodies against human oxidized low-density lipoprotein (anti-oxLDL) and the progression of atherosclerotic diseases is unclear. This study aimed to investigate the association between serum anti-oxLDL titers and the severity and extent of coronary stenotic lesions. Methods: We measured the titers of IgG anti-oxLDL by enzyme-linked immunosorbent ...
Iwashima Yoshio - - 2011
Concomitant diabetes and/or chronic kidney disease (CKD) in hypertensive patients may portend additive deleterious effects on active left ventricular relaxation. We investigated the effect of a passive leg lifting (PLL) maneuver, a means of increasing preload, on left ventricular filling to assess the relationship of concomitant diabetes mellitus (DM) and/or ...
Mehra Sanjay - - 2011
Numerous clinical studies have shown that coronary artery calcium scoring provides substantial incremental risk prediction beyond conventional coronary risk factors for coronary heart disease events. About half of all patients with coronary artery disease (CAD) present initially with unexpected myocardial infarction or sudden death. Early identification of this subgroup of ...
Clur S A B - - 2011
The pathophysiological background of an increased nuchal translucency (NT) is still poorly understood. Cardiac dysfunction has been proposed as a cause. The aim of this study was to determine if, in fetuses with normal hearts, the NT thickness is related to cardiac function throughout gestation. The NT was measured in ...
Akgul Ebru - - 2011
Objective: Autoimmune chronic thyroiditis (ACT) is characterized by lymphocyte infiltration in the thyroid gland and the presence of antithyroid antibodies in serum. Medical treatment does not affect antibody levels and treatment decision is not definite yet for the euthyroid patients. We aimed to evaluate cardiac autonomic function and global left ...
Carlomagno Guido - - 2011
Objective. Anorexia nervosa is a condition of reduced hemodynamic load, characterized by varying degrees of cardiac remodelling, only in part related to reduced body mass; the mechanism for such variability, as well as its clinical significance, remains unknown. Aim of the study was to assess the possible influence of a ...
Loomba Rohit S - - 2011
Revascularization after myocardial infarction is often achieved via percutaneous coronary intervention, which often entails stenting. Drug-eluting stents have shown benefits over bare metal stents in this setting, and a variety of drug-eluting stents are now available, including sirolimus-, paclitaxel-, and zotarolimus-eluting stents. There are studies that have compared the various ...
Yamamoto Hideya - - 2011
Although the coronary artery calcium (CAC) score as measured with computed tomography (CT) is associated with cardiovascular mortality and morbidity in Western countries, little is known in Asian populations. Three hundred and seventeen Japanese patients (205 men and 112 women) were followed in the study and they underwent both coronary ...
Decker Jeffrey M - - 2011
The goals of this study were to determine: 1) if the CHADS(2) score correlates with left atrial (LA) or left atrial appendage (LAA) thrombus on pre-cardioversion transesophageal echocardiography (TEE) in nonvalvular atrial fibrillation (NVAF); and 2) what, if any, components of the CHADS(2) score are most important in predicting LA/LAA ...
Akil Luma - - 2011
Obesity is among the leading causes of elevated cardiovascular disease (CVD) mortality and morbidity. In the present study, the associations between the increase in body mass index (BMI) and the increase rates of CVD and high blood pressure (HBP) in the states of Mississippi, Alabama, Louisiana, Tennessee, and Colorado are ...
André-Petersson Lena - - 2011
Psychosocial stress has been identified as a risk factor in association with cardiovascular disease but less attention has been paid to heterogeneity in vulnerability to stress. The serial Color Word Test (CWT) measures adaptation to a stressful situation and it can be used to identify individuals that are vulnerable to ...
Yeh Robert W - - 2011
Drug-eluting stents (DES) reduce rates of restenosis compared with bare metal stents (BMS). A number of observational studies have also found lower rates of mortality and non-fatal myocardial infarction with DES compared with BMS, findings not observed in randomized clinical trials. In order to explore reasons for this discrepancy, we ...
Lee Jung Yeop - - 2010
We investigated the thermal effects on heart rate, hemodynamics, and response of vitelline arteries of stage-18 chicken embryos. Heart rate was monitored by a high-speed imaging method, while hemodynamic quantities were evaluated using a particle image velocimetry (PIV) technique. Experiments were carried out at seven different temperatures (36-42 °C with ...
Elmstedt N - - 2010
OBJECTIVE: The high velocity and short duration of the myocardial motion requires a high sampling rate to obtain adequate temporal resolution, this issue becomes even more important when taking under consideration the high fetal heart rate. In this study, we have established optimal sampling requirements for assessing the duration of ...
Rudhani Ibrahim Destan - - 2010
The aim of this prospective study was the assessment of left ventricular and right ventricular diastolic function in patients on hemodialysis (HD) and the correlation of this func-tion with the duration of HD. The study included 42 patients (22 females and 20 males) with chro-nic renal failure (CRF), treated with ...
Urabe Takao - - 2010
In the past, transient ischemic attack (TIA) was defined as any sudden, focal cerebral ischemic event with neurological deficit lasting <24 hours. However, in several series of patients with TIA who underwent diffusion-weighted magnetic resonance imaging, many ischemic episodes with symptoms lasting <24 hours are associated with new infarctions. Therefore, ...
Negrine R J S - - 2012
Objective To measure the left and right ventricular myocardial velocities using tissue Doppler imaging (TDI) in the first 24 h of life in neonates. Design Left and right ventricular peak systolic (S'), early diastolic (E') and late diastolic (A') myocardial velocities were measured using TDI alongside standard echocardiography (including peak ...
Rossi Davide - - 2011
Several echo-Doppler parameters, particularly the E/e' ratio, have been explored in the attempt to improve prognostic stratification in chronic heart failure (CHF) patients. In most studies, however, left ventricular filling pressure was not measured and patients with severe impairment of left ventricular function were not considered. The aim of this ...
Rosenblum Hannah - - 2010
Peak oxygen consumption (VO(2) ) during cardiopulmonary exercise testing (CPET) is a powerful predictor of survival, providing an indirect assessment of cardiac output (CO). Noninvasive indices of CO derived from bioreactance methodology would add significantly to peak VO(2) as a means of risk-stratifying patients with heart failure. In this study, ...
Correale Michele - - 2011
The application of tissue Doppler imaging (TDI) has shown remarkable growth in clinical practice during the past few years, especially, in risk stratification of patients with coronary heart disease or heart failure (systolic and diastolic). Myocardial performance index (MPI) is a Doppler echocardiographic parameter defined as the sum of the ...
Matyal Robina - - 2010
BACKGROUND: We used echocardiographically derived myocardial performance index (MPI) to assess changes in global right ventricular function with lung isolation. We hypothesized that changes in MPI with lung isolation may be related to the incidence of postoperative supraventricular tachycardia (SVT). METHODS: Transesophageal echocardiographic examinations were performed after induction of general ...
Cadore Michel Pereira - - 2010
Scores to predict surgical risk in patients submitted to myocardial revascularization surgery are broadly used. To develop a score capable to predict mortality in patients submitted to myocardial revascularization surgery. From January 1996 to December 2007, data were collected from 2809 patients submitted to myocardial revascularization surgery at PUC-RS São ...
Bara Christoph - - 2010
Three-dimensional (3-D) visualization of ventricular activation sequence is imperative for the diagnosis and treatment of malignant cardiac arrhythmias. Modern mapping systems that serve as the gold standard for detection and localization of the focus are costly and require an invasive approach into the cavity of the ventricles. The aim of ...
Ichihashi Ko - - 2011
Background: The ratio of the peak transmitral velocity during early diastole (E) to the peak mitral valve annular velocity during early diastole (E') obtained by tissue Doppler imaging correlates with the left ventricular end-diastolic pressure in adults. However, the E/E' ratio has not been established in normal children. The purpose ...
Schober K E - - 2010
Echocardiographic prediction of congestive heart failure (CHF) in dogs has not been prospectively evaluated. CHF can be predicted by Doppler echocardiographic (DE) variables of left ventricular (LV) filling in dogs with degenerative mitral valve disease (MVD) and dilated cardiomyopathy (DCM). Sixty-three client-owned dogs. Prospective clinical cohort study. Physical examination, thoracic ...
Yagmur Julide - - 2011
Our aim was to evaluate whether atrial electromechanical delay measured by tissue Doppler imaging (TDI), which is an early predictor of atrial fibrillation (AF) development, is prolonged in obese subjects. A total of 40 obese and 40 normal-weight subjects with normal coronary angiograms were included in this study. P-wave dispersion ...
Yaylali Y T - - 2011
There have been controversial studies evaluating ventricular functions in patients with idiopathic hypogonadotropic hypogonadism (IHH). A recent study has demonstrated that low serum testosterone levels are associated with increased cardiovascular mortality. We aimed to investigate ventricular functions by standard echocardiography and examine the effects of substitutive therapy on right ventricular ...
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