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Myocardial Mechanics: Structure and Function of Myocardial Fibers

…middle layer (mid wall) are oriented circularly around the short axis. Contraction in this muscle layer results in radial shortening , meaning that the diameter of…

ECG manifestations of left main coronary artery (LMCA) occlusion and critical stenosis

…that can provide essential clues to LMCA occlusion or critical stenosis. This chapter reviews the ECG features suggestive of significant LMCA disease, including acute occlusions…

Vulnerable Plaque and Mechanisms of Acute Coronary Occlusion

…In some of these patients, microvascular obstruction or epicardial spasm may account for the ischaemia. STEMI usually results from rapid thrombotic occlusion of a previously…

ECG localization of myocardial infarction / ischemia and coronary artery occlusion (culprit)

…alleviate ischemic chest pain may lead to hemodynamic collapse in patients with right ventricular ischemia or infarction. Recognizing ECG signs of right ventricular involvement is…

A New Approach to Acute Coronary Syndromes: Occlusion MI (OMI) vs. Non-Occlusion MI (NOMI)

…colleagues in 2018. This approach seeks to anchor diagnostic and therapeutic decisions in the presence or absence of an acute coronary occlusion, rather than rigid…

Classification of Acute Coronary Syndromes (ACS) & Acute Myocardial Infarction (AMI)

…partial occlusion of the artery (i.e. coronary blood flow is not completely obstructed). NSTE ACS typically presents with ST segment depressions and/or T…

Interpretation of ECG after ROSC (Return of Spontaneous Circulation)

…inversions (negative T waves) do not affect the management of cardiac arrest. Recurrent VT or VF after ROSC in a patient with a coronary risk…

The ECG in assessment of myocardial reperfusion

…inversion of the T waves. These T waves are called post ischemic T waves and they indicate that the infarction process is more or less…

Fourth Universal Definition of Myocardial Infarction: Types 1–5

…the 99th percentile upper reference limit (URL). The injury is considered acute if there is a documented rise and/or fall of cTn values. However…

Cardiac thromboembolism: cardiac sources of embolism

…a cerebral artery is occluded due to local atherothrombosis or occlusion due to embolization. Approximately 30% of all ischemic strokes are caused by cardiac embolism…

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