Dobutamine stress echocardiography (DSE) is an effective modality for determining the presence of myocardial ischemia from obstructive coronary artery disease (CAD) [1]. Several large studies have deemed DSE a largely safe imaging tool, with minimal side effects [2-5]. The most serious and rare side effects being sustained ventricular tachycardia, intracranial hemorrhage, and myocardial infarct...

BACKGROUND Air pollution is associated with greater cardiovascular event risk, but the types of events and specific persons at risk remain unknown. This analysis evaluates effects of short-term exposure to fine particulate matter air pollution with risk of acute coronary syndrome events, including ST-segment elevation myocardial infarction, non-ST-segment elevation myocardial infarction, unstab...

Spontaneous coronary artery dissection remains a rare but important cause of acute coronary syndromes. Presentation depends on the extent of the dissection, the vessels involved and the rate of its development, and can encompass the entire spectrum of coronary syndromes, with some patients being asymptomatic and others presenting with angina, non-ST segment elevation myocardial infarction, ST-e...

Praecordial ST segment elevation was measured at 35 electrode positions in each of 40 patients admitted to a coronary care unit after acute transmural anterior myocardial infarction. Serial praecordial electrocardiographic maps were recorded to determine (a) the time course as well as reproducibility of measurements of ST segment alterations, and (b) the degree of correlation between the magnit...

OBJECTIVES. To review the 10-year trend of reperfusion strategies in patients with ST-segment elevation myocardial infarction, and the adoption rate of percutaneous coronary interventions as opposed to thrombolytic therapy. Also to explore why some patients did not receive reperfusion therapy, and document changes in reperfusion strategies after the introduction of primary percutaneous coronary...

OBJECTIVE To determine the diagnostic and prognostic impact of abnormal Q waves in comparison to or in combination with ST segment abnormalities in the right precordial and inferior leads as indicators of right ventricular infarction during the acute phase of inferior myocardial infarction. DESIGN Prospective study of a consecutive series of 200 patients with acute inferior myocardial infarct...

those with ST elevation myocardial infarction, whereas ‘primary’ therapy for those with non-ST elevation acute coronary syndromes is antithrombotic therapy (aspirin, heparin or low molecular weight heparin and/or glycoprotein IIb/IIIa inhibitors). Given the importance of ST elevation in discriminating acute myocardial infarction, Menown and colleagues conducted a comprehensive study of the exac...