Atrial tachycardia is an unusually fast heartbeat that originates in the atria, or upper chambers, of the heart. It is a type of supraventricular tachycardia (SVT). This means it begins above the ...
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What Causes an Enlarged Heart?
An enlarged heart, medically known as cardiomegaly, occurs when parts of the heart thicken or become too big. In some cases, people are born with this condition, but heart disease, diabetes, and ...
In this Journal feature, information about a real patient is presented in stages (boldface type) to an expert clinician, who responds to the information by sharing relevant background and reasoning ...
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