atrial capture

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a·tri·al cap·ture

control of the atria for one or more beats after a period of independent beating, as in incomplete AV block or in junctional or ventricular ectopic beats or tachycardias by a retrograde impulse.
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ACM confirmed atrial capture depending on a stable sinus rhythm or a stable atrioventricular conduction (AVC), or it could not work normally.
The proposed methods allowed successful atrial capture in all patients with whom the standard bipolar transesophageal method was successful.