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Interpretation of myocardial perfusion images (Myocardial SPECT / PET)

…further classified based on the intensity of tracer uptake and associated myocardial changes: Mild defects : Characterized by decreased tracer counts while preserving normal wall thickness…

Noradrenaline, Dobutamine and Levosimendan: Practical Infusion Use

…While detailed receptor pharmacology is not specified in the source material, it is utilised alongside inotropes in acute heart failure to support systemic blood pressure…

Vasovagal Syncope: Diagnosis, Tilt Testing and Treatment

…while supine Sudden onset of palpitations followed by syncope Severe coronary artery or structural heart disease High risk features on examination include: Unexplained systolic blood…

Cardiac arrest in hypothermia (accidental hypothermia)

…blood flow, due to the reduced metabolic rate that accompanies declining body temperature. For every 1°C reduction in body temperature, there is a 6% decrease…

Ventricular Pressure-Volume Relationship: Preload, Afterload, Stroke Volume, Wall Stress & Frank-Starling's law

…the aortic valve opens and blood is ejected into the aorta. Left ventricular volume decreases as the ventricle contracts and pumps blood into the aorta…

Myocardial Mechanics: Structure and Function of Myocardial Fibers

…of the ventricular wall is the epicardium , which contains fibroelastic connective tissue, blood vessels, lymphatics and adipose tissue. The myocardium The thick muscular layer between…

Right Ventricular Infarction: Recognition and Haemodynamic Management

…common in patients with inferoposterior left ventricular infarction, while infarction confined predominantly to the right ventricle is rare. The clinical spectrum extends from limited right…

Drug-Eluting Coronary Stents: Evolution, Evidence and Stent Choice

…that tacked down dissection flaps, counteracted elastic recoil, reduced emergency vessel closure and decreased the need for emergency CABG. Metal only stents, now termed BMS…

Ezetimibe: Place in Therapy and Expected LDL-C Reduction

…By reducing intestinal cholesterol absorption, it decreases the quantity of cholesterol delivered to the liver. The resulting hepatic response includes increased expression of low density…

Causes of sudden cardiac arrest

…The discrepancy between traditional figures and recent studies is due to the dramatic decrease in the incidence of acute coronary syndromes over the past decades…

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