PAT (paroxysmal atrial tachycardia)
Bouts of rapid, regular heart beating originating in the atrium (upper chamber of the heart). Due to abnormalities in the AV node "relay station" that lead to rapid firing of electrical impulses from the atrium which bypass the AV node under certain conditions. These conditions include alcohol excess, stress, caffeine, overactive thyroid or excessive thyroid hormone intake, and certain drugs. PAT is an example of an arrhythmia where the abnormality is in the electrical system of the heart, while the heart muscle and valves may

Medical dictionary. 2011.

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  • Paroxysmal atrial tachycardia (PAT) — Bouts of rapid, regular heart beating originating in the atrium (upper chamber of the heart). Due to abnormalities in the AV node "relay station" that lead to rapid firing of electrical impulses from the atrium which bypass the AV node… …   Medical dictionary

  • Tachycardia, paroxysmal atrial (PAT) — Bouts of rapid, regular heart beating originating in the atrium (upper chamber of the heart). Often due to abnormalities in the AV node "relay station" that lead to rapid firing of electrical impulses from the atrium which bypass the AV …   Medical dictionary

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  • Tachycardia — A rapid heart rate, usually defined as greater than 100 beats per minute. The tachycardias include sinus tachycardia, paroxysmal atrial tachycardia (PAT), and ventricular tachycardia. Sinus tachycardia is due to rapid firing of a normal structure …   Medical dictionary

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  • PAT — abbr. med. paroxysmal atrial tachycardia – пароксизмальная предсердная тахикардия …   Dictionary of English abbreviation

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