Accelerated Idioventricular Rhythm

ECG Features

Figure 1: ECG Strip[1]

Accelerated Idioventricular Rhythm (AIVR) occurs when "the rate of an ectopic ventricular pacemaker exceeds that of the sinus node."[2]

Table 1: ECG Characteristics[3]

Clinical Significance[4]

  • 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.

ECM Features

Figure 2: ECM Analysis of AIVR, Record 124[5][6]

Additional Information

References

  1. Accelerated Idioventricular Rhythm [Online image]. (2013). Retrieved July 19, 2016, from http://www.practicalclinicalskills.com/ekg-reference-guide-details?lessonID=24
  2. Accelerated Idioventricular Rhythm (AIVR). (n.d.). Retrieved July 27, 2016, from http://lifeinthefastlane.com/ecg-library/aivr/
  3. Accelerated Idioventricular Rhythm. (n.d.). Retrieved July 27, 2016, from http://www.practicalclinicalskills.com/ekg-reference-guide-details?lessonID=24
  4. Pezeshkian, N. G. (n.d.). Accelerated Idioventricular Rhythm. Retrieved August 08, 2016, from http://emedicine.medscape.com/article/150074-overview
  5. MIT-BIH Arrhythmia Database. (1980). Retrieved June, 2016, from https://physionet.org/physiobank/database/mitdb/
  6. Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG, Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and PhysioNet: Components of a New Research Resource for Complex Physiologic Signals. Circulation101(23):e215-e220 [Circulation Electronic Pages;http://circ.ahajournals.org/cgi/content/full/101/23/e215]; 2000 (June 13).