Search Results
Results 151 - 200 of 2019
1 2 3 4 5 6 7 8 9 10 >
Terkelsen Christian Juhl - - 2009
Accelerated idioventricular rhythm (AIVR) has been considered a marker of successful reperfusion in fibrinolytic-treated patients. Evidence is limited regarding its significance in patients with ST-elevation myocardial infarction treated with primary percutaneous coronary intervention (PPCI). The purpose of the present study was to determine the prevalence and associated outcomes of arrhythmias ...
Eggers Kai M - - 2010
Growth-differentiation factor-15 (GDF-15) has emerged as a prognostic biomarker in patients with non-ST-segment-elevation acute coronary syndrome. This study assessed the time course and the long-term prognostic relevance of GDF-15 levels measured repetitively in patients with non-ST-segment-elevation acute coronary syndrome during 6 months after the acute event. GDF-15 and other biomarkers ...
Tjandrawidjaja Michael C - - 2010
To evaluate the prognostic impact of ST depression resolution among patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary PCI in the Assessment of Pexelizumab in Acute Myocardial Infarction (APEX-AMI) trial. In this study, 4729 of 5745 patients had analysable ECGs demonstrating concomitant ST-segment depression. Resolution of summation operatorST elevation ...
Figueras Jaume - - 2009
BACKGROUND: Most patients with ST-elevation myocardial infarction fulfilling ST-segment elevation (STE) lytic criteria present an occluded culprit artery but the occlusion rate in those with minimal STE (minSTE) not fulfilling lytic criteria is unknown. METHODS: In 63 patients with minSTE (mean STE:1.2 +/- 0.6 mm) and 149 with lytic STE ...
Xia Shudong - - 2009
Background. Left ventricular aneurysm (LVA) in patients with idiopathic dilated cardiomyopathy (IDCM) is rarely reported, and the incidence, pathogenesis and clinical features of LVA in IDCM are poorly understood.Methods. The diagnosis of IDCM with LVA formation was made in six patients between January 2003 and September 2008. Left ventriculography, coronary ...
Huynh Thao - - 2009
Although the Thrombolysis In Myocardial Infarction (TIMI) score incorporates ST deviation, it does not account for characteristics of the ST deviations. In the present study, it was hypothesized that the magnitude and characteristics of ST deviation may add to the prognostic values of the TIMI risk score in acute coronary ...
Sejersten Maria - - 2009
OBJECTIVES: The purpose of this study was to determine the prognostic value of ST-segment resolution after primary percutaneous coronary intervention (pPCI) versus fibrinolysis. BACKGROUND: Resolution of the ST-segment has been used as a surrogate end point in trials evaluating reperfusion in acute myocardial infarction; however, its prognostic significance may be ...
Fiol Miguel - - 2009
BACKGROUND: Early prediction of proximal left anterior descending coronary artery (LAD) occlusion is essential from a clinical point of view HYPOTHESIS: To develop an electrocardiogram (ECG) algorithm based on ST-segment deviations to predict the location of occlusion of LAD as a culprit artery. METHODS: ECG and angiographic findings were correlated ...
Raymond Chad - - 2009
Current guidelines support dual antiplatelet therapy with aspirin and clopidogrel (Plavix) in a number of clinical scenarios, ie, in ST-segment-elevation myocardial infarction (MI), non-ST-elevation MI, and percutaneous coronary intervention. The guidelines are based on strong evidence from several large randomized clinical trials over the last 10 years. The authors present ...
Shanmugasundaram Madhan - - 2009
The spectrum of acute coronary syndrome (ACS) including unstable angina, non-ST-elevation myocardial infarction and ST-elevation myocardial infarction accounts for increasing numbers of deaths among persons age > or = 65 years in the US. This is important given demographic changes involving falling birth rates and increasing life expectancy. Elderly patients ...
Agladze R - - 2009
The aim of our study was to assess if the analysis of precatheterisation initial 12-lead ECG could reliably differentiate between Taco-Tsubo Cardiomyopathy (TTC) and ST-segment elevation myocardial infarction (STEMI), two conditions with a similar clinical presentation. Of the 320 patients with suspected STEMI who underwent angiography over a 2-year period ...
Cortell Alejandro - - 2009
INTRODUCTION AND OBJECTIVES: Occasionally, coronary arteries without significant stenosis are observed during invasive treatment of acute non-ST-elevation myocardial infarction (NSTEMI). The aim was to investigate predictive factors and prognosis in these patients. METHODS: The study involved 504 patients admitted for NSTEMI who underwent cardiac catheterization. The primary end-point was the ...
Andreotti Felicita - - 2009
Erythropoietin (Epo) is a hematopoietic hormone produced mainly by the kidneys in response to hypoxia. Recent acquisitions in the fields of hematology, neurology, cardiology, and experimental medicine show cytoprotective, angiogenetic and antiinflammatory effects of Epo. Exogenous erythroPoietin in Acute Myocardial Infarction: New Outlook aNd Dose Association Study (EPAMINONDAS, EudraCTno. 200500485386) ...
Gupta Raghav - - 2009
Transient cardiac ballooning is usually a reversible clinical entity. A patient typically presents with chest pain, electrocardiogram (ECG) abnormalities like ST-segment elevation (most commonly reported) or depression, and elevated cardiac enzymes, but has no or nonobstructive coronary artery disease. Left ventriculography reveals transient akinesis of the involved portion of the ...
Krucoff Mitchell W - - 2009
ST-segment elevation is the clinical hallmark of ST-elevation myocardial infarction; however pathophysiologically ST elevation occurs in association with acute coronary occlusion long before any myocardial necrosis occurs, for example. with no myocardial infarction (MI). The clinical utility of these laboratory observations has previously been limited; however, with the advent of ...
Balci Bahattin - - 2009
Tombstoning ST elevation myocardial infarction can be described as a STEMI characterized by tombstoning ST-segment elevation. This myocardial infarction is associated with extensive myocardial damage, reduced left ventricle function, serious hospital complications and poor prognosis. Tombstoning ECG pattern is a notion beyond morphological difference and is associated with more serious ...
Kumar Amit A Department of Hospital Medicine, University of Massachusetts Medical School, Worcester, MA 01655, USA. - - 2009
At the most severe end of the spectrum of acute coronary syndromes is ST-segment elevation myocardial infarction (STEMI), which usually occurs when a fibrin-rich thrombus completely occludes an epicardial coronary artery. The diagnosis of STEMI is based on clinical characteristics and persistent ST-segment elevation as demonstrated by 12-lead electrocardiography. Patients ...
Haeck J D - - 2010
OBJECTIVES: The aim of the study was to evaluate whether primary percutaneous coronary intervention (PCI) with combined proximal embolic protection and thrombus aspiration results in smaller final infarct size and improved left ventricular function assessed by cardiovascular magnetic resonance (CMR) in ST-segment elevation myocardial infarction (STEMI) patients compared with primary ...
Binbrek Azan S - - 2009
To determine whether the administration of erythropoietin (EPO) early after the onset of ischemia could enhance the preservation of jeopardized myocardium by reperfusion, 236 patients admitted <6 hours after the onset of chest pain indicative of acute coronary syndromes confirmed to be ST-segment elevation acute myocardial infarctions who were treated ...
Di Stefano Rossella - - 2009
PURPOSE: No studies have been addressed to the differences in inflammation kinetics between ST-segment elevation myocardial infarction (STEMI) and non-ST-segment elevation myocardial infarction (NSTEMI). PATIENTS AND METHODS: Forty consecutive patients with acute coronary syndrome (ACS) (n=23 STEMI, age=61.7+/-10.3 years; n=17 NSTEMI, age=65.6+/-11.3 years) were enrolled within 12h after symptoms. All ...
Hoogendijk Mark G - - 2010
The Brugada sign has been associated with mutations in SCN5A and with right ventricular structural abnormalities. Their role in the Brugada sign and the associated ventricular arrhythmias is unknown. The purpose of this study was to delineate the role of structural abnormalities and sodium channel dysfunction in the Brugada sign. ...
Kanei Yumiko - - 2010
BACKGROUND: ST-segment depression in lead aVR in acute inferior wall ST-segment elevation myocardial infarction (STEMI) has recently been suggested as a predictor of left circumflex (LCx) artery involvement. The purpose of this study is to evaluate the clinical significance of aVR depression during inferior wall STEMI. METHODS: This study included ...
Manari Antonio - - 2009
Despite advances in the treatment of acute coronary syndromes (ACS) a large proportion of patients do not receive adequate treatment. In most cases, myocardial infarction with ST-segment elevation myocardial infarction (STEMI) is associated with thrombotic occlusion of a major coronary artery, and 30-day mortality is higher than for patients with ...
Nijveldt Robin - - 2009
OBJECTIVES: This study investigated early electrocardiographic findings in relation to left ventricular (LV) function, extent and size of infarction, and microvascular injury in patients with acute myocardial infarction (MI) treated with percutaneous coronary intervention (PCI). BACKGROUND: The electrocardiogram (ECG) is the most used and simplest clinical method to evaluate the ...
Haeck Joost D E JD Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, the - - 2009
The purpose of this study was to evaluate the effectiveness of combined proximal embolic protection with thrombus aspiration (Proxis Embolic Protection System [St. Jude Medical, St. Paul, Minnesota]) in ST-segment elevation myocardial infarction patients. Embolization during primary percutaneous coronary intervention (PCI) may result in microvascular obstruction, reduced myocardial perfusion, and ...
Krishnaswamy Amar - - 2009
Emergent reperfusion strategies are integral to providing optimal patient outcomes in the setting of acute coronary artery occlusion. ST-segment elevation on the surface 12-lead electrocardiogram, although specific as a surrogate marker, is insensitive to acute posterior circulation coronary artery occlusion. Studies of non-ST-segment elevation acute coronary syndrome consistently identify patients ...
Stone Gregg W - - 2009
BACKGROUND: Myocardial salvage is often suboptimal after percutaneous coronary intervention in ST-segment elevation myocardial infarction. Posthoc subgroup analysis from a previous trial (AMIHOT I) suggested that intracoronary delivery of supersaturated oxygen (SSO(2)) may reduce infarct size in patients with large ST-segment elevation myocardial infarction treated early. METHODS AND RESULTS: A ...
Sgueglia Gregory Angelo - - 2010
No-reflow phenomenon is associated with a poor prognosis and its underlying mechanisms are still poorly understood. von Willebrand Factor (vWF) is a central molecule in haemostasis which plays an important role in acute coronary syndromes. However its possible role in no-reflow has not been assessed prior to this study. Quantitative ...
Tucciarone Michael - - 2009
Acute carbon monoxide poisoning is the most common cause of death from poisoning in the United States. It causes a spectrum of myocardial injury irrespective of carboxyhemoglobin levels and coronary anatomy. We present a 34-year-old woman with a non-ST-segment elevation myocardial infarction secondary to carbon monoxide poisoning who had normal ...
Dhar Sunil K - - 2009
INTRODUCTION: The strength duration curve has been studied for right ventricular endocardial stimulation. There are differences between left ventricular epicardial and right ventricular endocardial stimulation due to different electrophysiologic properties and different electrode-tissue interface. The strength duration curve for epicardial left ventricular stimulation has not been studied so far. METHODS: ...
De Luca Giuseppe - - 2009
BACKGROUND: Although primary angioplasty has been shown to improve survival as compared with thrombolysis, the outcome is still unsatisfactory in subsets of patients such as those with signs of heart failure at presentation. In fact, although primary angioplasty is able to restore TIMI 3 flow in most patients, suboptimal myocardial ...
Rajabali Naheed A - - 2009
Although advanced prehospital management (PHM) in ST elevation myocardial infarction (STEMI) reduces reperfusion delay and improves patient outcomes, its use in North America remains uncommon. Understanding perceived barriers to and facilitators of PHM implementation may support the expansion of programs, with associated patient benefit. To explore the attitudes and beliefs ...
Turnipseed Samuel D - - 2009
Introduction. Prehospital electrocardiograms (ECGs) have been recommended to facilitate early diagnosis of ST-segment elevation myocardial infarction (STEMI). However, prehospital ECGs can also be used to triage patients with non-ST-segment elevation acute coronary syndromes, who comprise a majority of patients with ischemic events presenting by ambulance to overcrowded emergency departments. Objective. ...
Jensen Christoph J - - 2009
PURPOSE: To assess myocardial salvage in acute ST segment elevation myocardial infarction (STEMI) by using contrast-enhanced CMR. METHODS: Forty-four consecutive patients (38 male; mean age 59 +/- 10 years) with a first acute STEMI underwent acute percutaneous coronary intervention with successful restoration of TIMI grade 3 flow. CMR was performed ...
Celik Turgay - - 2010
Cellular cardiomyoplasty is an investigational technique that may have the potential to reduce myocardial infarct size and improve cardiac function in patients with ischemic heart disease. However, experience with this approach is still limited to a few small trials, some which were not blinded or had other design problems. Although ...
Sim Doo Sun - - 2009
In Korea, the incidence of acute myocardial infarction has been increasing rapidly. Twelve-month clinical outcomes for 13,133 patients with acute myocardial infarction enrolled in the nationwide prospective Korea Acute Myocardial Infarction Registry study were analyzed according to the presence or absence of ST-segment elevation. Patients with ST-segment elevation myocardial infarction ...
Park So Ra - - 2009
The failure of ST-segment resolution (STR) after primary percutaneous coronary intervention (pPCI) is associated with adverse clinical outcomes. However, the clinical predictors on admission for incomplete STR are poorly known. Patients undergoing pPCI (n=101, 79 males and 22 females, mean age 60.0 years) were divided into complete STR group (>/=70%, ...
Kosuge Masami - - 2009
ST-segment elevation of ≥1.0 mm in the right precordial chest lead V4R (ST↑V4R) has been shown to be a reliable marker of right ventricular involvement (RVI) in inferior acute myocardial infarction (IMI). However, the impact of left ventricular posterior wall involvement (PWI) on the relation between ST↑V4R and RVI is ...
Hopenfeld Bruce - - 2009
The AngelMed Guardian is an implantable medical device that records cardiac data and detects ischemic events using a standard pacemaker intracardiac lead positioned in the right ventricular apex. The Guardian has been implanted in 55 people in the United States and Brazil and is currently undergoing a Food and Drug ...
Lasala John M - - 2009
BACKGROUND: Stent thrombosis (ST) is an uncommon but serious complication of drug-eluting and bare metal stents. To assess drug-eluting stent ST in contemporary practice, we analyzed 2-year data from the 7492-patient ARRIVE registry. METHODS AND RESULTS: Patients were enrolled at the initiation of percutaneous coronary intervention with no inclusion/exclusion criteria ...
Daly M J - - 2009
We present the case of a post-menopausal female who, following a prolonged period of vomiting and diarrhoea, presented acutely with Wernicke's; encephalopathy, chest pain, ST-segment elevation and congestive cardiac failure associated with hypotension. Coronary angiography demonstrated no abnormality. Haemodynamics improved significantly in the short-term following intravenous thiamine replacement, with complete ...
Foussas Stefanos G - - 2010
OBJECTIVES: To investigate the long-term impact of right ventricular myocardial involvement (RVI) after acute inferior ST-segment elevation myocardial infarction (STEMI). METHODS: A total of 1208 consecutive patients, who survived to discharge after hospitalization for acute inferior STEMI, were studied. Patients were divided into those with (n = 459) or without ...
Verouden N J - - 2009
OBJECTIVE: To describe patients with a distinct electrocardiogram (ECG) pattern without ST-segment elevation in the presence of an acute occlusion of the proximal left anterior descending (LAD) artery. DESIGN: Single-centre observational study. PATIENTS: Patients with acute anterior wall myocardial infarction who were referred for primary percutaneous coronary intervention (PCI) between ...
Ichimoto Eiji - - 2009
BACKGROUND: Cystatin C is reportedly a better endogenous marker of glomerular filtration rate than serum creatinine, so the prognostic value of cystatin C in patients with ST-elevation myocardial infarction (MI) was evaluated in the present study. METHODS AND RESULTS: A total of 71 patients who underwent percutaneous coronary intervention for ...
de Groot J W B - - 2009
A patient in whom acute myocardial infarction developed during diclofenac-induced anaphylaxis is described. ST-segment elevation myocardial infarction is a rare complication of anaphylactic reactions, but can occur even in patients with angiographically normal coronary arteries. Physicians should be aware of such a complication in order to diagnose it early and ...
Kühl Jørgen Tobias - - 2009
BACKGROUND: Lead aVR is a neglected, however, potentially useful tool in electrocardiography. Our aim was to evaluate its value in clinical practice, by reviewing existing literature regarding its utility for identifying the culprit lesion in acute myocardial infarction (AMI). METHODS: Based on a systematic search strategy, 16 studies were assessed ...
Bhagat Hemant - - 2009
This report describes a patient who presented with signs of meningitis four days after head injury. The patient had ST elevation on electrocardiography along with hypotension and positive tropinin T test, mimicking inferior wall infarction. The ST changes resolved within 48 hours of intensive care management. Subsequent investigations failed to ...
Fernandez-Jimenez Rodrigo - - 2011
A 75-year-old man with hypertension, hypercholesterolemia and history of coronary artery disease was admitted to the hospital because of sudden loss of consciousness. The patient suffered an acute myocardial infarction seven years before this admission, which was treated with percutaneous transluminal coronary angioplasty and stent implantation in the right coronary ...
Dimas Billy - - 2009
Proximal subclavian artery stenosis may result in cardiac ischemia in coronary artery bypass graft patients with internal mammary grafts. We report a case of acute anterior myocardial infarction in such a patient who developed severe systemic hypotension. Symptoms and electrocardiographic changes resolved after proximal left subclavian artery stenting. Subclavian angiography ...
Bodi Vicente - - 2009
OBJECTIVES: To evaluate the prognostic value of a comprehensive cardiac magnetic resonance (CMR) assessment soon after a first ST-segment elevation myocardial infarction (STEMI). BACKGROUND: CMR allows for a simultaneous assessment of wall motion abnormalities (WMA), WMA with low-dose dobutamine (WMA-dobutamine), microvascular obstruction, and transmural necrosis. This approach has been proven ...
1 2 3 4 5 6 7 8 9 10 >