Accelerated Idioventricular Rhythm
Figure 1: ECG Strip
Accelerated Idioventricular Rhythm (AIVR) occurs when "the rate of an ectopic ventricular pacemaker exceeds that of the sinus node."
Table 1: ECG Characteristics
- AIVR generally only lasts for a short time and rarely causes hemodynamic instability; thus, AIVR usually does not require treatment.
- AIVR is often linked to underlying conditions such as myocardial ischemia-reperfusion, digoxin toxicity, and cardiomyopathies.
Figure 2: ECM Analysis of AIVR, Record 124
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