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Myocardial Injury Versus Infarction: Interpreting Troponin Elevation

…which death occurs before biomarkers can be obtained or become abnormal, in the presence of symptoms suggestive of ischaemia and presumed new ischaemic ECG changes…

Myocardial Infarction with Non-Obstructive Coronary Arteries: Causes, Work-up and Management

…tomography (OCT) can reveal lesions that are not apparent on conventional angiography. Coronary vasomotor disorders may involve epicardial spasm or abnormalities of the coronary microcirculation…

Fourth Universal Definition of Myocardial Infarction: Types 1–5

…Clinical Presentation and Symptoms The diagnosis of an acute MI remains a comprehensive clinical diagnosis based on patient symptoms, ECG changes, highly sensitive biochemical markers…

🟠 Left ventricular diastolic function

…adult Abnormal relaxation (grade 1 dysfunction) Pseudonormal (grade 2 dysfunction) Reversible restrictive filling (grade 3 dysfunction) Irreversible restrictive filling (grade 4 dysfunction) E/A ratio…

🟠 Right ventricle, pulmonary artery, pulmonary artery pressure

…Pulmonary valve morphology normal normal/abnormal abnormal Density CW Doppler weak, slow deceleration variable dense, steep deceleration, early termination of diastolic flow Jet width colour…

🟠 Left and right atrium

…size and volume Women Men Normal range Mildly abnormal Moderately abnormal Severely abnormal Normal range Mildly abnormal Moderately abnormal Severely abnormal ATRIAL DIMENSIONS LA diameter…

🟠 Pulmonary valve

…Pulmonary valve morphology normal normal/abnormal abnormal Density CW Doppler weak, slow deceleration variable dense, steep deceleration, early termination of diastolic flow Jet width colour…

The QRS complex: ECG features of the Q-wave, R-wave, S-wave & duration

ECG Introduction to ECG interpretation The QRS complex (ventricular complex): normal and abnormal configurations and intervals A complete QRS complex consists of a Q , R…

Acquired QT Prolongation and Drug-Induced Arrhythmia

…characterised by an abnormal prolongation of the QT interval on the surface electrocardiogram (ECG), which predisposes the myocardium to a specific form of polymorphic ventricular…

Vasospastic (Prinzmetal) Angina: Provocation Testing and Treatment

…formerly termed Prinzmetal or variant angina, is myocardial ischaemia caused by transient abnormal vasoconstriction of one or more coronary arteries. Epicardial spasm produces a reversible…

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