Search Results
Results 201 - 250 of 1552
< 1 2 3 4 5 6 7 8 9 10 >
Konings Maurits K - - 2011
Recently, a non-invasive, continuous ventricular stroke volume monitoring system using skin electrodes has been developed. In contrast to impedance-based methods, the new technique (ventricular field recognition) enables measurement of changes in ventricular volume. A prototype using this new method was built (the hemologic cardiac profiler, HCP) and validated against a ...
Lombardi Federico - - 2011
Heart period constantly changes on a beat to beat basis, due to autonomic influences on the sinoatrial node, and changes can be quantified as heart rate variability (HRV). In addition, after a premature ventricular beat, there are reproducible variations in RR interval, also due to baroreflex mediated autonomic influences on ...
Ahmad Talha J TJ Department of Electrical Engineering, University of Texas at Dallas, Richardson, TX 75080, USA. - - 2011
This paper discusses the effect of atrioventricular conduction time (AVCT) on the short-term Heart Rate Variability (HRV) by computing HRV parameters using intervals between the onsets of successive P waves (PP time series) for three groups: normal, arrhythmia and sudden cardiac death (SCD) patients. A very precise wavelet transform based ...
Eslami Abouzar A Technical University of Munich, Germany. - - 2011
In this paper we propose a new method for shape guided segmentation of cardiac boundaries based on manifold learning of the shapes represented by the phase field approximation of the Mumford-Shah functional. A novel distance is defined to measure the similarity of shapes without requiring deformable registration. Cardiac motion is ...
Pennell Dudley J DJ Royal Brompton Hospital, London, UK. - - 2011
The efficacy of cardiac iron chelation in transfusion-dependent patients has been demonstrated in one-year prospective trials. Since normalization of cardiac T2* takes several years, the efficacy and safety of deferasirox was assessed for two years in patients with β-thalassemia major in the cardiac sub-study of the EPIC trial. Eligible patients ...
Komajda Michel - - 2011
The determinants of prognosis in patients with heart failure and preserved ejection fraction (HF-PEF) are poorly documented. We evaluated data from 4128 patients in the I-PRESERVE trial (Irbesartan in Heart Failure with Preserved Ejection Fraction Study). Multivariable Cox regression models were developed using 58 baseline demographic, clinical, and biological variables ...
McEvoy John W - - 2010
Baseline coronary artery calcification (CAC) accurately identifies coronary atherosclerosis and might improve prediction of future cardiac events. Serial assessment of CAC scores has been proposed for monitoring atherosclerosis progression and for assessing the effectiveness of medical therapies aimed at reducing cardiac risk. However, whether knowledge of progression of CAC scores ...
Rauch Bernhard - - 2010
There is no randomized, double-blind trial testing the prognostic effect of highly purified omega-3 fatty acids in addition to current guideline-adjusted treatment of acute myocardial infarction. OMEGA is a randomized, placebo-controlled, double-blind, multicenter trial testing the effects of omega-3-acid ethyl esters-90 (1 g/d for 1 year) on the rate of ...
Cochet Alexandre - - 2010
To compare 2 cardiac magnetic resonance (CMR) techniques for the evaluation of the prognostic significance of microvascular damage after non ST-segment elevation myocardial infarction (NSTEMI). CMR was performed at 3T in 61 patients within the week following their first NSTEMI. A first-pass saturation-recovery gradient-echo perfusion sequence was started during the ...
Kalay Nihat - - 2010
Fatty acid-binding protein (FABP) is an independent predictor of cardiac events. However, the relation between increasing FABP and coronary atherosclerosis is unknown. We have investigated the relation between FABP and angiographic properties of coronary atherosclerosis in patients with acute coronary syndrome (ACS). The study population consisted of 93 patients with ...
Baskurt M - - 2010
Post-infarction ventricular septal defect (VSD) is a fatal mechanical complication of myocardial infarction. Although the incidence has decreased to less than 1% after the extensive use of reperfusion strategies, post-infarction VSD still carries a high mortality risk. Management is controversial, whether to wait for surgery after a stabilisation period or ...
Leeka Justin - - 2010
Physiologic and clinical triggers, including mental stress, anxiety, and anger, often precipitate acute myocardial infarction and cardiovascular death. Sporting events can acutely increase cardiovascular event and death rates. A greater impact is observed in patients with known coronary artery disease and when stressful features are present, including a passionate fan, ...
Chaptini Nayla - - 2010
Ambulatory cardiac single-photon emission computed tomography stress testing for the evaluation of coronary artery disease at the primary care physician's office is increasingly utilized without data supporting its safety. In this 2-year prospective pilot study of 1266 consecutive stress-myocardial perfusion imaging studies done in the primary care physician's office using ...
Núñez-Gil Iván J - - 2010
The Killip classification categorizes heart failure (HF) in acute myocardial infarction, and has a prognostic value. Although non-ST-elevation myocardial infarction (NSTEMI) is increasing steadily, little information is available about the prognostic value of low Killip class in this scenario. Our aim was to assess the prognostic value of mild HF ...
White Harvey - - 2010
BACKGROUND: Elevated plasma levels of lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) are associated with increased risk of cardiovascular (CV) events. Direct inhibition of this proinflammatory enzyme with darapladib may benefit CV patients when given as an adjunct to standard of care, including lipid-lowering and antiplatelet therapies. METHODS: STABILITY is a randomized, placebo-controlled, ...
Esen Ali M - - 2010
The aim of this study was to evaluate the prognostic value of different fractional flow reserve (FFR) cutoff values and corrected thrombolysis in myocardial infarction frame (TIMI) count (CTFC) measurements in a series of consecutive patients with moderate coronary lesions, including patients with unstable angina, myocardial infarction, and/or positive noninvasive ...
Galper Shira L - - 2011
This study assessed the cumulative incidence of clinically significant cardiac disease in 1279 Hodgkin lymphoma patients treated with mediastinal irradiation and quantified the standard incidence ratios (SIRs) and absolute excess risks of cardiac procedures compared with a normal matched population. Cox regression analysis was used to explore factors associated with ...
Makino Aritaka - - 2010
MIF is proatherogenic and is highly expressed in unstable atherosclerotic plaques. Circulating levels of MIF are increased in patients with impaired glucose tolerance or type 2 diabetes mellitus (IGT/T2DM). We examined whether high circulating levels of macrophage migration inhibitory factor (MIF) are related to increased risk of future coronary events ...
Hirsch Liran - - 2011
Adverse cardiovascular events (CVE) tend to peak during early morning post-waking hours. Our objective was to explore a possible correlation between early and late morning hours and flow-mediated dilation (FMD), and whether early morning FMD reduction contributes to a circadian pattern of cardiac and vascular vulnerability. Brachial FMD was prospectively ...
Ausset Sylvain - - 2010
BACKGROUND: The aim of this study performed in patients undergoing major orthopedic surgery was to assess the impact of changes in practice on both the incidence of postoperative myocardial ischemia (PMI) detected by serial measurements of troponin Ic and long-term cardiac outcome. METHODS: During a 3-yr period, troponin Ic was ...
Zhang Yi - - 2010
BACKGROUND: Left ventricular diastolic dysfunction (LVDD) was reported as a significant predictor of mortality, mainly in patients with heart failure. However, prospective data are scarce in the hospitalized elderly population. METHODS: We studied the association of severe LVDD, defined by conventional echocardiographic parameters, with cardiovascular and all-cause mortality in a ...
Kasama Shu - - 2010
Many studies have shown a one-time ¹²³I-metaiodobenzylguanidine (MIBG) scan during a stable period to be useful for determining the prognosis of patients with chronic heart failure (CHF). However, we recently reported that the delta washout rate (WR) determined from serial ¹²³I-MIBG scintigraphic studies is the best prognostic value in patients ...
Pischke Claudia R - - 2010
It is unclear whether lifestyle changes can delay the need for surgical procedures in coronary heart disease (CHD) patients with asymptomatic reduced left ventricular ejection fraction (LVEF). The aim of this pilot study was to examine whether lifestyle changes can delay the need for surgical procedures in this population. We ...
Al Suwaidi Jassim - - 2010
The objective of this study was to evaluate the prevalence and effect of the metabolic syndrome (MetS) on patients with acute coronary syndrome (ACS) in six Middle Eastern countries using the new definition of MetS. Analysis of the Gulf Registry of Acute Coronary Events (Gulf RACE), which included 8716 consecutive ...
Ladis Vassilios - - 2010
Cardiac complications because of transfusional iron overload are the main cause of death in thalassaemia major. New chelators and iron monitoring methods such as cardiac magnetic resonance (CMR) became available after the year 2000. We evaluated the impact of these new management options on cardiac mortality and morbidity. The risk ...
Chen Szu-Chia - - 2010
Patients with chronic kidney disease (CKD) are associated with an increased risk of cardiovascular (CV) events. An increase in the ratio of the pre-ejection period (PEP) to ejection time (ET) is correlated with a decrease of left ventricular systolic function. Brachial PEP (bPEP) and brachial ET (bET) can be automatically ...
Azab Basem - - 2010
Neutrophil/lymphocyte ratio (NLR) is the strongest white blood cell predictor of adverse outcomes in stable and unstable coronary artery syndromes. The aim of our study was to explore the utility of NLR in predicting long-term mortality in patients with non-ST-segment elevation myocardial infarction (NSTEMI). Consecutive patients with NSTEMI at Staten ...
Horne Benjamin D - - 2010
The complete blood count (CBC) and basic metabolic profile are common, low-cost blood tests, which have previously been used to create and validate the Intermountain Risk Score (IMRS) for mortality prediction. Mortality is the most definitive clinical endpoint, but medical care is more easily applied to modify morbidity and thereby ...
Nguyen Hoang P - - 2010
Perioperative hypothermia has been reported to increase the occurrence of cardiovascular complications. By increasing the activity of sympathetic nervous system, perioperative hypothermia also has the potential to increase cardiac injury and dysfunction associated with subarachnoid hemorrhage. The Intraoperative Hypothermia for Aneurysm Surgery Trial randomized patients undergoing cerebral aneurysm surgery to ...
De Sutter J - - 2010
Chemokines are important mediators of angiogenesis, hematopoiesis and leucocyte trafficking. CC Chemokine Ligand-18 (CCL18)/ pulmonary and activation-regulated chemokine (PARC) is a circulating chemokine that plays a role in injury healing, physiological homing of mononuclear blood cells and inflammatory responses. CCL18/PARC is also expressed in atherosclerotic plaques. We prospectively evaluated CCL18/PARC ...
Ionescu Costin N - - 2010
Current data suggest an excellent outcome for patients with Tako-tsubo cardiomyopathy (TC). The objectives of this study were to evaluate the long-term outcome and the prognostic implication of thrombolysis in myocardial infarction myocardial perfusion grade (TMPG) in patients with TC. Retrospective analysis of all patients diagnosed with TC at our ...
Lansky Alexandra J - - 2010
Contemporary adjunctive pharmacology and revascularization strategies have improved the prognosis of patients with acute coronary syndromes (ACSs). We sought to identify the clinical and angiographic predictors of cardiac ischemic events in patients with ACSs treated with an early invasive strategy. Multivariable logistic regression was used to analyze the relation between ...
Perrone-Filardi Pasquale - - 2011
Cardiovascular events remain one of the most frequent causes of mortality and morbidity worldwide. The majority of cardiac events occur in individuals without known coronary artery disease (CAD) and in low- to intermediate-risk subjects. Thus, the development of improved preventive strategies may substantially benefit from the identification, among apparently intermediate-risk ...
Osaka Motohisa - - 2010
No reliable precursor of sudden cardiac death is known. Holter electrocardiograms of 34 patients experiencing a cardiac event (event group, 20 deaths) were compared with 191 controls (no event group). The event group included 25 patients with ventricular fibrillation or acute myocardial infarction (AMI), and 9 with cardiac arrest due ...
Uysal Hilal - - 2011
Many new measuring devices have been developed so that broader psychometric measurements in the coronary artery disease, disease-specific health status measurements, and identification of the broader quality of life can be performed in the recent years. The study was intended to determine whether, and to what extent, MIDAS is a ...
Mitra B - - 2010
We investigated whether there was an association between recombinant activated factor VII (rFVIIa) use in cardiac surgery and thromboembolic events by comparing cases in two medical registries. The incidence of thromboembolic events in patients undergoing cardiac surgery (except isolated coronary artery bypass grafts) who had received rFVIIa and were entered ...
Brunelli Alessandro - - 2010
BACKGROUND: The revised cardiac risk index (RCRI) has been proposed as a tool for cardiac risk stratification before lung resection. However, the RCRI was originally developed from a generic surgical population including a small group of thoracic patients. The objective of this study was to recalibrate the RCRI in candidates ...
Li Ning - - 2010
OBJECTIVE: Lipoprotein-associated phospholipase A2 (Lp-PLA2) is a useful inflammatory marker of cardiovascular risk, yet there are few reports on the prognostic significance of Lp-PLA2 as a risk factor for acute coronary syndrome (ACS). It is necessary to evaluate the association of Lp-PLA2 with major adverse cardiac events (MACE) in patients ...
Flu Willem-Jan - - 2010
During noncardiac surgery, patients may be at risk for developing cardiac events, related to underlying coronary artery disease. Therefore, perioperative cardiac complications remain an area of clinical interest and concern in patients undergoing noncardiac surgery. Over the years, perioperative risk assessment has evolved significantly to detect surgical patients with myocardium ...
Nazarian Saman S Department of Medicine/Cardiology, Johns Hopkins University, Baltimore, Maryland 21287, USA. - - 2010
Current noninvasive surrogates of cardiac involvement in myotonic muscular dystrophy have low positive predictive value for sudden death. We hypothesized that the cardiac MR signal-to-noise ratio variance (SNRV) is a surrogate of the spatial heterogeneity of myocardial fibrosis and correlates with electrocardiography changes in myotonic muscular dystrophy. The SNRV for ...
Lai Maria Eliana - - 2010
Myocardial iron overload is the leading cause of death in patients with beta-thalassemia major. An intensification monotherapy with deferoxamine (DFO) as well as a combination therapy with DFO and deferiprone (DFP) reduces myocardial iron and improves cardiac function. However, the prognosis for thalassemia major patients with established cardiac disease switched ...
Nucifora Gaetano - - 2011
Identification of patients at risk of future coronary artery disease (CAD) events traditionally relies on scoring tools that take demographic and clinical characteristics into account (e.g., the Framingham risk score in the United States and the Heart Score in Europe). Although these scoring tools have been shown to have a ...
Bertges Daniel J - - 2010
The Revised Cardiac Risk Index (RCRI) is a widely used model for predicting cardiac events after noncardiac surgery. We compared the accuracy of the RCRI with a new, vascular surgery-specific model developed from patients within the Vascular Study Group of New England (VSGNE). We studied 10,081 patients who underwent nonemergent ...
Nakanishi Rine - - 2010
OBJECTIVES: Although it has been reported that (123)I-metaiodobenzylguanidine (MIBG) myocardial scintigraphy is useful for assessing the prognosis of dilated cardiomyopathy (DCM), there have been no reports regarding how interval MIBG imaging should be performed during follow-up. We investigated the significance of performing MIBG at different times for the long-term prediction ...
Patton N - - 2010
Thalassaemia major patients usually die from cardiac haemosiderosis. Improved strategies are required to modify this risk. To assess the significance of cardiac iron overload in patients with beta thalassaemia. Observational study of cardiac iron overload as assessed by magnetic resonance imaging (MRI) cardiac T2* relaxometry in 30 adult patients with ...
Valentin Emmanuel - - 2010
Aterovax is developing innovative products for patients with and at risk of cardiovascular disease. Based on its pioneering research in atherosclerosis, the company's first product is a diagnostic blood test to measure the activity of secreted phospholipase A2 enzymes, a powerful biomarker that provides physicians with clinically relevant information regarding ...
Abu-Assi Emad - - 2010
BACKGROUND: The Can Rapid Risk Stratification of Unstable Angina Patients Suppress Adverse Outcomes With Early Implementation of the ACC/AHA Guidelines (CRUSADE) model provides a risk score that predicts the likelihood of major bleeding in patients hospitalized for non-ST-elevation acute myocardial infarction. The aim of the present work was to evaluate ...
Sadanaga Tsuneaki - - 2010
OBJECTIVES: The aim of the present study was to evaluate whether elevated D-dimer levels can predict subsequent thromboembolic and cardiovascular events in patients with atrial fibrillation during oral anticoagulant therapy. BACKGROUND: Atrial fibrillation is associated with hemostatic abnormalities even during oral anticoagulant therapy. D-dimer levels reflect a pro-thrombogenic state and ...
Troisi Nicola - - 2010
The purpose of this study was to evaluate the effectiveness of a standardized preoperative cardiac assessment in reducing the rate of perioperative cardiac complications in patients undergoing aortic surgery, paying particular attention to the analysis of the factors affecting perioperative cardiac outcomes. Between January 2005 and August 2008, a total ...
Saraf Smriti - - 2010
OBJECTIVES: Our objective was to assess endogenous thrombolytic activity in acute coronary syndrome (ACS) patients and relate this to their likelihood of future adverse cardiovascular events. BACKGROUND: Spontaneous lysis of platelet-rich thrombi is an important defense mechanism against lasting occlusion. Despite convincing evidence for the role of endogenous fibrinolysis in ...
< 1 2 3 4 5 6 7 8 9 10 >