The term “acute coronary syndrome” encompasses unstable angina and non-ST-segment elevation myocardial infarction (UA/ NSTEMI) and ST-segment elevation myocardial infarction (STEMI). UA/NSTEMI is the combination of two closely related clinical entities (i.e., a syndrome), whereas STEMI is a distinct clinical entity. UA/NSTEMI is characterized by an imbalance between myocardial oxygen supply and...

Background: The role of temperature changes, as an environmental risk factor, in the human health status has been investigated in recent studies. Accordingly, the present two-year study was conducted to evaluate the incidence of myocardial infarction (MI) in warm and cold seasons in Ali-ibn Abi Talib Hospital, Rafsanjan, Iran. Materials and Methods: In this descriptive and cross-sectional st...

A variety of noncardiac conditions mimic the electrocardiographic changes ST-elevation myocardial infarction (STEMI). Therefore, a physician must maintain high index suspicion when evaluating ST-segment elevation (STE). We present case epigastric pain secondary to ileus and gastric dilatation masquerading as anterolateral STEMI on an electrocardiogram (ECG). The STE promptly resolved following ...

BACKGROUND despite the widespread use of electrocardiographic changes to characterize patients presenting with acute myocardial infarction, little is known about recent trends in the incidence rates, treatment, and outcomes of patients admitted for acute myocardial infarction further classified according to the presence of ST-segment elevation. The objectives of this population-based study were...

De Winter syndrome is a rare electrocardiographic (ECG) pattern that makes the diagnosis of ST-segment elevation myocardial infarction (STEMI) very challenging. Our case indicates early identification and such ECGs timely reperfusion therapy de as an STEMI equivalent are required to improve prognosis patients.

Simultaneous multiple coronary artery thrombosis is a rare finding in ST segment elevation myocardial infarction (STEMI). We report a case of myocardial infarction with multiple ST segment elevation on the electrocardiography and total occlusions of the distal left anterior descending artery (dLAD), as well as of the second and third obtuse marginal artery on emergency coronary angiography. Thr...

ST-elevation ACS (STE-ACS): patients present with acute chest pain and persistent (>20 minutes) ST-segment elevation. Most of these patients will develop an ST-elevation myocardial infarction (STEMI). Non-ST-elevation ACS (NSTE-ACS): patients present with acute chest pain but without persistent STsegment elevation. The ECG shows persistent or transient ST-segment depression or T-wave inversion,...

Coronary heart disease remains the leading cause of death in the developed world. Advanced age is the single strongest risk factor for coronary artery disease (CAD) and independent predictor for poor outcomes following an acute coronary syndrome (ACS). ACS refers to a spectrum of conditions compatible with acute myocardial ischemia and/or infarction due to various degrees of reduction in corona...

The term, acute coronary syndrome (ACS), describes a spectrum of clinical conditions ranging from ST-segment elevation myocardial infarction (STEMI) to non–ST-segment elevation MI (N–STEMI) and unstable angina (UA) (Fig. 119.1) (1). These manifestations of acute myocardial ischemia may revert to the presymptomatic state or evolve into a non-Q wave (also termed nontransmural) MI or to Q wave (or...

© 2009 Mayo Foundation for Medical Education and Research The term acute coronary syndrome (ACS) refers to any group of clinical symptoms compatible with acute myocardial ischemia and covers the spectrum of clinical conditions ranging from unstable angina (UA) to non– ST-segment elevation myocardial infarction (NSTEMI) to ST-segment elevation myocardial infarction (STEMI). Unstable angina and N...