Search Results
Results 401 - 450 of 2019
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Worthley Matthew I - - 2007
PURPOSE: The study assessed the relationship of admission blood glucose level to in-hospital mortality in patients presenting with an ST-segment elevation myocardial infarction and treated with primary angioplasty. METHODS: A total of 980 patients presenting with an ST-segment elevation myocardial infarction and treated exclusively with primary angioplasty were evaluated. Patients ...
Van Horn Stephen E SE - - 2007
Non-ST-segment elevation myocardial infarction (NSTEMI) is a major cause of cardiovascular morbidity and mortality in the United States. It represents the highest risk category of non-ST-segment elevation acute coronary syndromes (NSTEACS), for which timely diagnosis and appropriate therapy are paramount to improve outcomes. Evidence-based treatment, with combination of antiplatelet and ...
Yan Andrew T - - 2007
BACKGROUND: Limited data suggest that ST elevation (ST elevation) in aVR is associated with higher mortality and more extensive coronary artery disease in the setting of non-ST elevation acute coronary syndromes (ACS). METHODS: In the prospective Global Registry of Acute Coronary Events (GRACE) electrocardiographic substudy, the admission electrocardiograms were analyzed ...
Erdem Alim - - 2007
OBJECTIVE: Acute inferior myocardial infarction (AIMI) is generally characterized by ST segment elevation in the limb leads (D2, D3, aVF). Many trials have reported the close relation between the severity of this ST segment elevation and the extent of infarction, and also the prognosis. Based on the clinical studies, several ...
Aytekin Vedat - - 2007
Disruption of vulnerable or high-risk plaques is the common pathophysiological mechanism of acute coronary syndromes with or without ST elevation. The reflection of the same pathophysiological mechanism differs in non-ST-elevation acute coronary syndromes and ST-elevation myocardial infarction (STEMI) in terms of clinical presentation, prognosis and therapeutic approach. Diagnostic and therapeutic ...
Jim Man-Hong - - 2007
BACKGROUND: The clinical significance of inferior wall acute myocardial infarction (MI) with combined ST-segment elevation in both anterior and inferior leads, compared with inferior leads alone, is unknown. HYPOTHESIS: Despite having more leads with precordial ST-segment elevation, these patients may have a better outcome due to less posterior involvement, which ...
López Alejandro - - 2007
Electrical alternans, a beat-to-beat alternation in the electrocardiogram or electrogram, is frequently seen during the first few minutes of acute myocardial ischemia, and is often immediately followed by malignant cardiac arrhythmias such as ventricular tachycardia and ventricular fibrillation. As ischemia progresses, higher-order periodic rhythms (e.g., period-4) can replace the period-2 ...
Diercks Deborah B - - 2007
STUDY OBJECTIVE: We evaluate the association of emergency department (ED) length of stay with use of guideline-recommended therapies for acute treatments and clinical outcomes. Prolonged ED stays often reflect ED crowding or limited hospital capacity. We hypothesized that patients with non-ST-segment-elevation myocardial infarction who have ED stays of greater than ...
O'Loughlin Aiden J C - - 2007
BACKGROUND: Prediction of the location of culprit lesions responsible for ST-segment elevation myocardial infarctions may allow for prevention of these events by safe and easily deliverable local therapies. METHODS: A retrospective analysis of coronary movement was performed on coronary angiograms of patients who subsequently represented with ST-segment elevation myocardial infarction ...
Petrov Daniel - - 2007
Prinzmetal's angina is a condition characterized by chest pain, transient ST elevation, and negative biochemical markers of myocardial cell necrosis. We describe a case of chemically-induced "silent" ST segment elevation related to Atenolol overdose in a patient without coronary artery stenosis. We conclude that the cause for the transient myocardial ...
Yan Raymond T - - 2007
In the prospective, multinational Global Registry of Acute Coronary Events (GRACE), patients diagnosed with non-ST-elevation acute coronary syndromes had their admission electrocardiogram independently evaluated by a central core laboratory, and its interpretation by the core laboratory and enrolling site were compared. One in 6 of these patients had clinically important ...
Catipović-Veselica Katija - - 2007
This study examined the prevalence of major and minor depression in patients with acute coronary syndrome and their relation with heart rate and heart-rate variability, and clinical characteristics. The study group included 297 patients, 200 men and 97 women, between ages of 21 and 70 years (M age = 57.5 ...
Dziewierz Artur - - 2007
INTRODUCTION: Increased adherence to guideline-recommended therapies, especially early invasive strategy introduction may improve clinical outcome in patients with non-ST-elevation acute coronary syndromes. The aim of this study was to assess the impact of more aggressive pharmacological treatment and application of current guidelines in everyday clinical practice in hospitals without on-site ...
Spinler Sarah A - - 2007
PURPOSE: To describe data and insights from a national quality improvement initiative known as Can Rapid Risk Stratification of Unstable Angina Patients Suppress Adverse Outcomes with Early Implementation of the American College of Cardiology (ACC)/American Heart Association (AHA) Guidelines (CRUSADE), for managing non-ST-segment elevation acute coronary syndrome (ACS), as well ...
Falcao Stéphanie - - 2007
To show that reductions in connexin43 (Cx43) can contribute, in association with electrophysiological alterations identified from unipolar recordings, to conduction disturbances in a realistic model of heart failure, canines were subjected to chronic rapid pacing (240/min for 4 weeks) and progressive occlusion of the left coronary circumflex artery (LCx) by ...
Jiménez-Candil Javier - - 2008
BACKGROUND: Previous studies have shown that prolonged QRS duration increases the risk of death in patients with heart failure and after an ST-segment elevation acute myocardial infarction. Very little data exist about the prognostic implications of QRS duration in the non-ST-segment elevation acute coronary syndrome (NST-ACS): unstable angina and non-ST ...
Jiménez-Candil Javier - - 2008
BACKGROUND: The corrected QT interval (QTc) is prolonged in the setting of acute coronary artery disease. However, very little data are available concerning the relationship between the QTc obtained soon after an episode of acute chest pain (ACHP) and the magnitude and severity of the myocardial ischaemia objectified in subsequent ...
Porto Italo - - 2007
Angiographic myocardial blush grade (MBG) is a potent predictor of long-term outcome after percutaneous treatment of myocardial infarction, yet little is known regarding the underlying pathophysiologic features. The relation between MBG and cardiovascular magnetic resonance (CMR)-defined amounts of necrosis and microvascular obstruction was examined in 27 patients. Another powerful prognostic ...
Pan Kuo Li - - 2007
Most tumor invasion into the heart is nonspecific and clinically silent. Myocardium metastasis rarely mimics a myocardial infarction. In this case, a cardiac metastasis from a squamous cell carcinoma presented with both persistent ST elevation and paroxysmal supraventricular tachycardia. The secondary lesion was located in the anterior wall and lateral ...
Zhou X-H - - 2007
The general myocardial infarction model was made by ligating the left anterior descending coronary artery through traditional large opening thoracotomy, although there were many drawbacks such as severe injuries and pain in this method. The present study tried to find a new method to establish a minimally invasive canine model ...
Dhar Sunil - - 2007
Takotsubo cardiomyopathy is a unique acute cardiac syndrome characterized by typical ischemic chest symptoms, an elevated ST segment on the electrocardiogram, and elevated cardiac disease markers. It is often misdiagnosed as acute myocardial infarction. Coronary angiography usually shows no evidence of obstructive atherosclerotic coronary artery disease. Left ventriculography and echocardiography ...
Gasior Mariusz - - 2007
BACKGROUND: Results of studies comparing direct stenting (DS) with conventional stenting (CS) after balloon predilatation in patients with acute myocardial infarction (MI) have been reported in the past, however they are conflicting. There are only few randomised studies that aim to answer whether DS improves epicardial and myocardial patency. AIM: ...
Ryu Ho Yoel - - 2007
Bupivacaine is widely used as a local anesthetic. Central nervous system (CNS) and cardiovascular toxicity are well known side effects. However, there has been no report of bupivacaine-induced myocardial injury. We present a case of bupivacaine cardiac toxicity mimicking an acute non-ST segment elevation myocardial infarction, which was eventually diagnosed ...
Derian Wissam - - 2007
We report a case of an 82-year-old female presenting with symptoms of chest pain, nausea, dizziness and electrocardiographic evidence of ST segment elevation in inferior and ST depression in anterior leads. Emergent coronary angiogram showed totally occluded mid left circumflex and a totally occluded distal right coronary artery, there was ...
Yuval Rita - - 2007
BACKGROUND AND AIMS: Medical personnel generally believe that non-ST elevation (NSTE) acute coronary syndromes (ACS) are less damaging than ST elevation myocardial infarction (STEMI), in keeping with the lower morbidity and mortality attributed to these subgroups in randomized clinical trials. We examined whether this concept translates into a difference from ...
De Luca G - - 2008
OBJECTIVE: To evaluate the prognostic role of postprocedural single-lead residual ST-segment deviation for electrocardiographic evaluation of myocardial perfusion in patients with ST-segment elevation myocardial infarction (STEMI) treated by primary angioplasty. DESIGN: Prospective observational clinical cohort study. SETTING: Tertiary referral centre. PATIENTS: 1660 patients treated with primary angioplasty for STEMI. MAIN ...
Yan Hong-bing - - 2007
BACKGROUND: Different feasible and safe thrombectomy and distal protection devices have been used in clinical practice. The efficiency and safety of adjunct thrombectomy using Diver CE device (Invatec, Italy) versus Guardwire Plus device (Medtronic, USA) before percutaneous coronary intervention (PCI) were compared in patients with acute inferior ST-segment-elevation myocardial infarction ...
Yan Andrew T - - 2007
BACKGROUND: In patients with acute coronary syndromes (ACS), recurrent ischemia detected by continuous electrocardiographic monitoring portends a poor outcome. We sought to investigate (1) the additional long-term prognostic value of ST-segment monitoring beyond the validated Global Registry of Acute Coronary Events (GRACE) risk score in ACS and (2) whether ST-segment ...
Sentürk Tunay - - 2007
OBJECTIVES: The aim of this study is to determine the relation of high-sensitive serum C-reactive protein (hsCRP) and procalcitonin with presence and severity of coronary artery disease and early prognosis in patients with acute coronary syndrome (ACS). METHODS AND RESULTS: Procalcitonin and hsCRP levels were measured at admission and after ...
Adlbrecht Christopher - - 2007
Acute coronary syndrome is characterized by compromised blood flow at the epicardial and microvascular levels. We have previously shown that thrombectomy in ST-elevation myocardial infarction (STEMI) accelerates ST-segment resolution, possibly by preventing distal embolization. We hypothesized that thrombus constituents contribute to microcirculatory dysfunction. Therefore, we analyzed the molecular and cellular ...
Buchholz Stefan - - 2007
Tako-tsubo syndrome (TTS) or stress-related acute reversible ventricular apical dysfunction is an emerging but seemingly under-recognised cardiomyopathy mimicking acute ST elevation myocardial infarction (STEMI) without concomitant epicardial coronary artery disease. Severe emotional stress is the most common trigger for this syndrome in the published series, but it can also be ...
Bogaert Jan - - 2007
Microvascular obstruction (MVO) is an important and independent determinant of post-infarct remodeling. Fifty-two patients with a successfully reperfused ST-segment elevation acute myocardial infarction (MI) were studied with MRI in the first week and at 4 months post-infarction. On early (i.e., 2-5 min) post-contrast MRI, MVO was detected in 32 patients ...
Lerman Amir - - 2007
AIMS: Despite advancements over the past years, normal reperfusion at the myocardial level is not achieved in approximately every other patient with ST-elevation myocardial infarction. In the current work, we aimed at reviewing the role of the coronary microcirculation in the development and outcome of this acute coronary syndrome entity. ...
Bennett J R - - 2007
A 63-year-old female developed respiratory failure and was admitted to the Intensive Care Unit for non-invasive ventilation, inotropic support and antibiotic therapy. The patient was initially stable but then suddenly deteriorated with acute pulmonary oedema requiring mechanical ventilation. An electrocardiogram showed an acute ST elevation myocardial infarction and the patient ...
Lombardi Federico - - 2007
We report the case of a patient with genetically confirmed Brugada syndrome who presented with ST-segment elevation in the right precordial and inferior leads. The presenting arrhythmia was atrial fibrillation, which degenerated into ventricular fibrillation during intravenous amiodarone. A flecainide test was markedly positive. Four appropriate cardioverter-defibrillator discharges occurred during ...
Jacobs Jeffrey Phillip - - 2007
This review discusses the historical aspects, current state of the art, and potential future advances in the areas of nomenclature and databases for congenital heart disease. Five areas will be reviewed: (1) common language = nomenclature, (2) mechanism of data collection (database or registry) with an established uniform core data ...
Carrabba Nazario - - 2007
OBJECTIVES: We sought to evaluate the incidence, timing, and clinical significance of additional increase in ST segment elevation (ST-SE) in patients showing no reflow after angioplasty for acute myocardial infarction. METHODS: We studied 26 patients with acute myocardial infarction showing myocardial contrast echocardiography no reflow after successful angioplasty. Baseline and ...
Rakowski Tomasz - - 2007
Early abciximab administration before primary percutaneous coronary intervention (PPCI) for ST-segment elevation myocardial infarction (STEMI) is recommended in practice guidelines. However, the evidence supporting abciximab use before and during transfer for PPCI is limited. We investigated the effect of early abciximab administration on early reperfusion, ST-segment resolution, enzymatic infarct size, ...
Tibrewala Amit V - - 2007
Half the patients who survive ST-segment elevation anterior myocardial infarction continue to have ST elevation (STE) 6 months after the event. The mechanism for this and its clinical significance are unclear. There are data to suggest that larger infarcts are more likely to have persistent changes in the ST segment. ...
Brearley William D WD - - 2007
Pneumomediastinum is characterized by dissecting air within the connective tissues supporting the mediastinum. This condition has been associated with multiple electrocardiographic abnormalities including T-wave inversion, electrical alternans, loss of R wave progression, and low voltage QRS. We describe a case of pneumomediastinum with electrocardiographic changes mimicking acute ST-segment elevation myocardial ...
Galiuto Leonarda - - 2007
In the thrombolytic era, persistence of ST-segment elevation was considered a marker of left ventricular (LV) aneurysm. ST-segment elevation may still be found persistently raised after successful primary percutaneous coronary intervention (PCI). Echocardiographic correlates of this finding, however, are still poorly known. 82 consecutive patients with first ST-segment elevation myocardial ...
Del Furia Francesca - - 2007
A 70-year-old man experienced an amoxycillin-induced anaphylactic reaction complicated by acute inferior myocardial infarction with transient ST-segment elevation. There was a spontaneous resolution of ST-segment elevation and the patient was treated for anaphylaxis. Coronary angiography showed severe obstructive coronary atherosclerosis, but not involving the infarct-related artery. Percutaneous coronary intervention of ...
Atar Shaul - - 2007
ST-segment depression (ST-D) on the admission electrocardiogram of patients with non-ST-elevation acute coronary syndromes (NSTEACSs) is associated with higher mortality. However, few studies have evaluated the effect of location of ST-D and T-wave polarity on long-term prognosis of patients with NSTEACS. Electrocardiographic (ECG) and clinical data from 6,770 patients with ...
Daccarett Marcos - - 2007
A 19 years old male presented with a syncopeal episode after heavy marihuana use. A 12 lead ECG demonstrated Brugada-like ST segment elevation in leads V1 and V2. Urine and blood toxicological studies upon admission demonstrated markedly elevated levels of Tetrahydrocannabinol (THC). A 2D echocardiogram demonstrated normal left ventricular function ...
Eriksson Michael - - 2007
AIMS: We studied the prognostic value of different reperfusion criteria of short-term continuous vectorcardiography (VCG) in an unselected cohort of 400 patients with ST-elevation myocardial infarction, treated at 4 coronary care units in Stockholm, Sweden, between 1999 and 2002. The main outcome measure was 1-year mortality. RESULTS: Of 400 study ...
Wollert Kai C - - 2007
BACKGROUND: Growth-differentiation factor-15 (GDF-15) is a member of the transforming growth factor-beta cytokine superfamily that is induced in the heart after ischemia-and-reperfusion injury. Circulating levels of GDF-15 may provide prognostic information in patients with non-ST-elevation acute coronary syndrome. METHODS AND RESULTS: Blood samples were obtained on admission from 2081 patients ...
Szymański Filip M - - 2007
The aim of our study was to analyze electrocadiographic changes in patients with acute myocardial infarction related to the occlusion of diagonal (DG) or marginal (MG) branch. We selected 13 cases with DG and 12 with MG occlusion on angiography and evaluated their electrocardiogram (ECG) patterns on admission obtained in ...
Ad Niv - - 2007
The purpose of this study was to explore potential differences in the performance of the EuroSCORE and the STS mortality risk score in the prediction of operative mortality following cardiac surgery with special focus on the impact of gender. We retrospectively reviewed 3125 consecutive cases of coronary artery bypass surgery ...
Mancini G B John - - 2007
OBJECTIVES: To develop a method for quantitating coronary angiographic abnormalities of segmental size and shape (tapering) in comparison to gender- and segment-specific, population derived, normal values. BACKGROUND: In the absence of obvious focal stenoses, remodeling renders the angiogram insensitive to the presence of atherosclerosis and invalidates use of a "normal ...
Nilsson Johan B - - 2007
OBJECTIVES: To analyse the incidence and the prognostic value of the reperfusion peak in a population of patients with AMI treated with thrombolysis. DESIGN: Two hundred and sixty-nine patients with ST-elevation myocardial infarction treated with thrombolysis were monitored with continuous on-line vectorcardiography. RESULTS: A reperfusion peak defined as a transiently ...
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