…heart disease, or several mechanisms acting simultaneously. Acute myocardial infarction Acute myocardial infarction requires: Acute myocardial injury, demonstrated by a rise and/or fall in…

ECG Myocardial ischemia and infarction T wave changes in acute myocardial infarction & ischemia A thorough discussion regarding the physiology of the T wavewas previously provided…

Cardiology Definition and classification Heart failure (HF) is a clinical syndrome in which the heart cannot deliver blood at a rate appropriate to tissue requirements…

…SCAD), or another occult structural abnormality. IVUS IVUS generates images by transmitting ultrasound from an intracoronary catheter and recording echoes reflected from the vessel wall…

…between myocardial oxygen demand and coronary blood supply. Stress increases myocardial oxygen requirements, principally through increased heart rate and contractility. In the presence of a…

…P wave will exceed 120 milliseconds in lead II. Biatrial abnormality/enlargement Biatrial abnormality implies that the ECG indicates both left and right atrial enlargement…

…of new loss of viable myocardium or a new regional wall motion abnormality in an ischemic distribution Angiographic evidence of a flow limiting procedural complication…

…may produce pain in the abdomen, chest, lower back or scrotum. Aneurysmal pain is clinically important because it may herald rupture and constitutes a medical…

…Exercise may amplify the abnormality through increased myocardial contractility and heart rate. Coronary compression and a Venturi or “suction” effect have been proposed as mechanisms…

…the defining abnormality is inadequate distal perfusion in the absence of a major residual epicardial obstruction. No reflow is associated with serious short and long…