Search Results
Results 251 - 300 of 2317
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Nishino Masami - - 2011
The safety of sirolimus-eluting stents (SESs) in acute myocardial infarction (AMI) remains controversial. We compared long-term neointimal coverage after stent implantation for AMI evaluated by coronary angioscopy and 3-year clinical events between SESs and bare-metal stents (BMSs). Eighty-seven consecutive patients who received SESs or BMSs for AMI were enrolled. At ...
Etemadi M - - 2011
Analyzing systolic time intervalsspecifically the pre-ejection-period (PEP)is widely accepted as one of the few methods for non-invasive assessment of cardiac contractility. In this work, we investigated the ballistocardiogram (BCG) as a way to non-invasively measure myocardial contractility when combined with the electrocardiogram (ECG). Specifically, we derived a parameter from the ...
Vaes Bert - - 2011
BACKGROUND: Little is known about the relationship between cardiac dysfunction and poor functioning in the elderly. This study sought to describe the prevalence of cardiac dysfunction in the very elderly and to investigate the correlation between echocardiographic abnormalities and indicators of poor functioning. METHODS: A cross-sectional analysis within the BELFRAIL ...
Schwarz Florian - - 2011
BACKGROUND: Cardiac CT provides volumetric data that enables characterization of the myocardium. OBJECTIVE: We evaluated intraobserver, interobserver, and interstudy reproducibility of left ventricular (LV) and right ventricular (RV) mass quantification with cardiac CT. METHODS: Thirty-eight patients who underwent cardiac CT twice within 365 days were included in this analysis. Functional ...
Park Juri - - 2011
OBJECTIVE: Healthy obese phenotype with favorable metabolic profiles is proposed. However, whether healthy obesity leads to target organ changes is controversial. We investigated the impact of a healthy obesity on cardiovascular structure and function. METHODS: A total of 2540 participants without known cardiovascular disease were enrolled. According to BMI and ...
Mistry Nisha - - 2011
AIMS: We aimed to compare two-dimensional global longitudinal strain (GS) with different non-invasive imaging modalities for the assessment of left ventricular function in an ST-elevation myocardial infarction population. METHODS AND RESULTS: GS was compared with ejection fraction (EF) determined by magnetic resonance imaging (MRI), standard echocardiography (echo), contrast echo, and ...
Shen Xuedong - - 2011
The PROSPECT trial reported no single echocardiographic measurement of dyssynchrony is recommended to improve patient selection for cardiac resynchronization therapy (CRT). In 100 consecutive patients who received CRT, we analyzed 27 ECG and echocardiographic variables to predict a positive response to CRT defined as a left ventricular (LV) end systolic ...
Park Young-Woo - - 2011
D-dimer is a breakdown product of fibrin mesh after factor XIII stabilization. Previously, many authors have demonstrated a relationship between D-dimer level and stroke progression or type. This study aimed to investigate the relationship between D-dimer level and stroke volume. Between January 2008 and December 2009, we analyzed the D-dimer ...
Hosokawa Yusuke - - 2011
A female with chronic atrial fibrillation presented with an acute myocardial infarction. The angiogram revealed total occlusion of the right coronary artery. A combined strategy using intracoronary thrombolysis, aspiration catheter, plain old balloon angioplasty, and "Fogarty-like" procedure was performed. However, we failed to achieve good coronary flow because the thrombus ...
Khan Fakhar Z - - 2011
Aims:  Noninvasive cardiac output (CO) measurement (NICOM) is a novel method to assess ventricular function and offers a potential alternative for optimization of cardiac resynchronization therapy (CRT) devices. We compared the effect of NICOM-based optimization to no optimization (empiric settings) on CRT outcomes. Methods:  Two hundred and three patients undergoing ...
Ashikaga Kohei - - 2011
OBJECTIVE: This study aimed to clarify the correlation between the myocardial washout rate (WR) of technetium-99m hexakis 2-methoxy-isobutyl-isonitrile ((99m)Tc-sestamibi) and cardiac enzyme levels in patients with acute myocardial infarction (AMI) 6 months after the onset. METHODS: Sixty-one consecutive AMI patients (mean age, 66.2 ± 9.7 years) who underwent percutaneous coronary intervention (PCI) on admission ...
Tirilomis Theodor - - 2011
Cooling before circulatory arrest or ischemic arrest has been reported to influence myocardial performance in isolated neonatal hearts. The aim of the present study was to analyze indices of myocardial contractility and relaxation in an in vivo neonatal model after deep hypothermic circulatory arrest (DHCA). DHCA (18°C; DHCA group; n = 8) ...
Matsuo Shinro - - 2011
OBJECTIVE: The coronary artery calcium (CAC) score and myocardial perfusion imaging can now be detected simultaneously using a hybrid SPECT/CT camera. However, there has been little evaluation on the relationship between stress-induced ischemia and coronary artery calcification in a Japanese population. The aim of this study was to investigate the ...
Vanhecke Thomas E - - 2011
BACKGROUND: -Coronary CT angiography (CCTA) is an excellent tool for noninvasive assessment of coronary arteries in low-to-intermediate risk individuals. However, the accuracy of CCTA is heavily dependent on image quality. Our objective was to develop and validate a tool to predict pre-CCTA risk of obtaining an uninterpretable result in symptomatic ...
Recke Siegfried H - - 2011
The study was conducted to ascertain that the ECG assists in the assessment of systolic dysfunction in chronic aortic regurgitation. Five variables were reviewed in 146 adults without bundle branch block who underwent angiocardiography: total 12-lead QRS amplitude, QRS duration, maximum R peak time in I, V5 or V6, maximum ...
Ferrari Gianfranco - - 2011
We investigated the effects of the intra-aortic balloon pump (IABP) on endocardial viability ratio (EVR), cardiac output (CO), end-systolic (V(es) ) and end-diastolic (V(ed) ) ventricular volumes, total coronary blood flow (TCBF), and ventricular energetics (external work [EW], pressure-volume area [PVA]) under different ventricular (E(max) and diastolic stiffness) and circulatory ...
Gaborit B - - 2011
Objective:To assess epicardial fat volume (EFV), myocardial TG content (MTGC) and metabolic profile in severely obese patients, and to determine whether ectopic fat depots are linked to metabolic disorders or myocardial function.Research design and methods:Sixty-three subjects with normal LV function and no coronary artery disease, including 33 lean (BMI: 21.4±2.0 kg m(-2)) ...
Tanboga Ibrahim H - - 2011
Syntax score is a significant tool in the management of complex coronary artery disease (CAD). This score is based on visual assessment of coronary lesions via coronary angiograms. It has some limitations due to its visual assessment. Therefore, interobserver and intraobserver agreement should be tested. One hundred twenty-two coronary angiograms ...
Duncan Rae F - - 2011
Aims: Accurate calculation of left ventricular ejection fraction (LVEF) is important for diagnostic, prognostic and therapeutic reasons. Cardiac magnetic resonance (CMR) is the reference standard for LVEF calculation, followed by real time three-dimensional echocardiography (RT3DE). Limited availability of CMR and RT3DE leaves Simpson's rule as the two-dimensional echocardiography (2DE) standard ...
Cameli Matteo - - 2011
Background: The associations of left ventricular (LV) systolic torsion with clinical and echocardiographic variables in physiological conditions have not been fully investigated. We explored the independent determinants of LV systolic torsion in a population of normal subjects. Methods: In 119 healthy subjects, peak twist angle (LVtw) and torsion (LVtor) during ...
Carmo Pedro - - 2011
Background: Recurrent ischemia is frequent in patients with non-ST-elevation acute coronary syndromes (NST-ACS), and portends a worse prognosis. Continuous ST-segment monitoring (CSTM) reflects the dynamic nature of ischemia and allows the detection of silent episodes. The aim of this study is to investigate whether CSTM adds prognostic information to the ...
Rohani Atooshe - - 2011
Admission white blood cell (WBC) count and thrombosis in myocardial infarction (TIMI) risk score have been associated with adverse outcomes after acute myocardial infarction (AMI). This study investigated the joint effect of WBC count and TIMI risk score on predicting in-hospital outcomes in patients with AMI. WBC count and TIMI ...
Mornoş Cristian - - 2011
Torsional and longitudinal deformations are essential components of left ventricular (LV) performance. We believe that a precise assessment of LV function must take into account both LV torsion (LVtor) and global longitudinal strain (LVε). Therefore, we investigated with speckle tracking echocardiography the value of a new parameter, LVtor × LVε, ...
Sattarzadeh R - - 2011
This study aimed at evaluating the early effects of successful elective percutaneous coronary intervention (PCI) on systolic and diastolic function. We consecutively studied the systolic and diastolic function in 21 patients with stable coronary artery disease (CAD) and left ventricular ejection fraction (LVEF) > 40% before and 48 hours after ...
Saltijeral Adriana - - 2011
Obesity is considered as a strong risk factor for cardiovascular morbidity and mortality. 3D-wall motion tracking echocardiography (3D-WMT) provides information regarding different parameters of left ventricular (LV) myocardial deformation. Our aim was to assess the presence of early myocardial deformation abnormalities in nonselected obese children free from other cardiovascular risk ...
Biondi-Zoccai Giuseppe - - 2011
BACKGROUND: Coronary bifurcations remain a challenging lesion subset for percutaneous coronary intervention (PCI). It is unclear whether intravascular ultrasound (IVUS) guidance can improve PCI results in bifurcations. We aimed to compare IVUS-guided PCI versus standard PCI in a large registry of patients undergoing PCI for bifurcations in the drug-eluting stent ...
Okuda Koichi - - 2011
OBJECTIVE: We have developed freeware package for automatically quantifying myocardial perfusion and (123)I-labeled radiopharmaceutical single-photon emission computed tomography (SPECT), which is called "cardioBull". We aim to evaluate diagnostic performance of the detection of coronary artery disease (CAD) on the developed software in comparison with commercially available software package [Quantitative Perfusion ...
Pérez de Isla Leopoldo - - 2011
The echocardiographic technology known as three-dimensional wall motion tracking offers three-dimensional images of the myocardium and provides multiple measures of deformation, one of which is known as "area strain" (AS), which combines left ventricular longitudinal and circumferential deformations. Our aim was to describe the normal maximum systolic reference AS value ...
Pazhenkottil Aju P - - 2011
BACKGROUND: The outcome of patients with severe ischaemic left ventricular (LV) dysfunction is determined by the extent of myocardial viability and the presence of LV dyssynchrony. We aimed at assessing both parameters from the same imaging method, i.e. gated positron emission tomography (PET) F18-fluorodeoxyglucose (FDG) scans. METHODS: Phase analysis from ...
Ahmadi Naser - - 2011
OBJECTIVE: Ventricular dysfunction in asymptomatic patients is directly linked to the eventual development of symptomatic congestive heart failure. This study investigates whether subclinical left ventricular (LV) and right ventricular (RV) dysfunctions measured by computed tomography angiography is associated with the severity of coronary artery disease (CAD). METHODS AND RESULTS: We ...
Kepez Alper - - 2011
OBJECTIVE: This cross-sectional observational study is designed to evaluate direct effects of obstructive sleep apnea syndrome (OSA) on presence and extent of coronary atherosclerosis by using tomographic coronary calcification scoring on a population asymptomatic for coronary artery disease. METHODS: Ninety-seven consecutive patients (49.17±0.86 years) who were evaluated with sleep study ...
Lombardo Antonella - - 2011
Infarct size (IS) and microvascular obstruction (MO) following ST-elevation myocardial infarction (STEMI) reperfusion may affect left ventricular (LV) remodeling. We evaluated the impact of extent and transmurality of IS and MO in LV remodeling using contrast-enhanced cardiac magnetic resonance imaging (MRI). Thirty-six consecutive patients presenting with a first STEMI and ...
Vural Ahmet - - 2011
BACKGROUND: Chronic heart failure (HF) is a common, complex clinical syndrome characterized by dyspnea, fatigue and exercise intolerance. HF patients experience decreased libido and erectile dysfunction (ED). The effects of cardiac resynchronization therapy (CRT) on libido and erectile function have not been previously evaluated. We aimed to investigate the effects ...
Dhillon Onkar S - - 2011
Soluble ST2 is a marker of biomechanical strain for which the natural ligand is interleukin 33 (IL-33). They have not been studied together in non-ST-elevation myocardial infarction (NSTEMI). We investigated their relationship with death, heart failure (HF) readmission, and reinfarction combined (termed major adverse cardiac events [MACE]) and, separately, in ...
Nielsen Jimmi - - 2011
Several antipsychotics are associated with the ventricular tachycardia torsade de pointes (TdP), which may lead to sudden cardiac death (SCD), because of their inhibition of the cardiac delayed potassium rectifier channel. This inhibition extends the repolarization process of the ventricles of the heart, illustrated as a prolongation of the QT ...
Lee Betsy - - 2011
: The ability to risk stratify patients presenting to the emergency department (ED) with potential acute coronary syndrome (ACS) is critical. Several risk scores for patients with definite ACS have been developed, but only the TIMI risk score has been shown to risk stratify ED patients with potential ACS. We ...
Pfister Roman - - 2011
BACKGROUND: Diabetes mellitus is associated with a high risk for heart failure, which is further increased in the presence of coronary heart disease. So far no clinical risk score for development of heart failure exists for patients with type 2 diabetes and macrovascular disease. METHODS: Independent clinical predictors for heart ...
Tanabe Kengo - - 2011
There remain a small but sizable number of patients who develop restenosis after sirolimus-eluting stent (SES) implantation. However, the cause of SES restenosis has not been fully elucidated. The study population consisted of 52 patients with 69 lesions who underwent noninvasive coronary imaging by 64-slice multidetector computed tomography before SES ...
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 ...
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