Atrial Bigeminy ECG Interpretation with Sample Strip


ECG Strip

ecg rhythm strip for reference guide

Atrial Bigeminy Rhythm Strip Features

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Bigeminy is a cardiac arrythmia in which there is a single ectopic beat, or irregular heartbeat, following each regular heartbeat. If every other beat is abnormal, it is described as bigeminal. If every third beat is aberrant, it is trigeminal. Bigeminy is contrasted with couplets, which are paired abnormal beats. Groups of three abnormal beats are called triplets
Most often this is due to ectopic beats occurring so frequently that there is one after each sinus beat, or normal heartbeat. The two beats are figuratively similar to two twins (hence bi- + gemini). For example, in ventricular bigeminy, a sinus beat is shortly followed by a premature ventricular contraction (PVC), a pause, another normal beat, and then another PVC.[1] In atrial bigeminy, the other "twin" is a premature atrial contraction (PAC).
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