atrioventricular (AV) junctionalbigeminy

a·tri·o·ven·tric·u·lar (AV) junctionalbigeminy

(ā'trē-ō-ven-trik'yū-lăr jungk'shŭn-ălbī-jem'i-nē)
Paired beats, each pair consisting of an AV nodal extrasystole coupled to a beat of the dominant, usually sinus, rhythm.
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