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Accelerated Idioventricular Rhythm Treatment & Management

  • Author: Nayereh G Pezeshkian, MD; Chief Editor: Jeffrey N Rottman, MD  more...
Updated: Dec 31, 2015

Medical Care

Treatment for accelerated idioventricular rhythm (AIVR) does not change the prognosis. The most important therapy for patients with AIVR is to treat the underlying etiology.

AIVR is usually hemodynamically tolerated and self-limited; thus, it rarely requires treatment.

Occasionally, patients may not tolerate AIVR due to (1) loss of atrial-ventricular synchrony, (2) relative rapid ventricular rate, or (3) ventricular tachycardia or ventricular fibrillation degenerated from AIVR (extremely rare). Under these situations, atropine can be used to increase the underlying sinus rate to inhibit AIVR.

Other treatments for AIVR, which include isoproterenol, verapamil, antiarrhythmic drugs such as lidocaine and amiodarone, and atrial overdriving pacing are only occasionally used today.

Patients with AIVR should be treated mainly for its underlying causes, such as digoxin toxicity, myocardial ischemia, and structure heart diseases. Beta-blockers are often used in patients with myocardial ischemia-reperfusion and cardiomyopathy.



A cardiology or electrophysiology consult may be helpful in difficult cases.



No particular diet is helpful.



Activity may increase sinus rate and inhibit AIVR in some patients. In others, activity may not be well tolerated during AIVR; therefore, temporary bed rest or atropine therapy is reasonable.

Contributor Information and Disclosures

Nayereh G Pezeshkian, MD Assistant Professor of Medicine, Division of Cardiology and Electrophysiology, University of California, Davis, School of Medicine

Nayereh G Pezeshkian, MD is a member of the following medical societies: American College of Cardiology, American Society of Echocardiography, Heart Rhythm Society

Disclosure: Nothing to disclose.


Yingbo Yang, MD, PhD Clinical Assistant Professor of Cardiovascular Medicine, Division of Cardiology, Lawrence J Ellison Ambulatory Care Center, University of California, Davis, Medical Center

Yingbo Yang, MD, PhD is a member of the following medical societies: American College of Cardiology, Heart Rhythm Society

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

Ronald J Oudiz, MD, FACP, FACC, FCCP Professor of Medicine, University of California, Los Angeles, David Geffen School of Medicine; Director, Liu Center for Pulmonary Hypertension, Division of Cardiology, LA Biomedical Research Institute at Harbor-UCLA Medical Center

Ronald J Oudiz, MD, FACP, FACC, FCCP is a member of the following medical societies: American College of Cardiology, American College of Chest Physicians, American Thoracic Society, American College of Physicians, American Heart Association

Disclosure: Serve(d) as a speaker or a member of a speakers bureau for: Actelion, Bayer, Gilead, Lung Biotechnology, United Therapeutics<br/>Received research grant from: Actelion, Bayer, Gilead, Ikaria, Lung Biotechnology, Pfizer, Reata, United Therapeutics<br/>Received income in an amount equal to or greater than $250 from: Actelion, Bayer, Gilead, Lung Biotechnology, Medtronic, Reata, United Therapeutics.

Chief Editor

Jeffrey N Rottman, MD Professor of Medicine, Department of Medicine, Division of Cardiovascular Medicine, University of Maryland School of Medicine; Cardiologist/Electrophysiologist, University of Maryland Medical System and VA Maryland Health Care System

Jeffrey N Rottman, MD is a member of the following medical societies: American Heart Association, Heart Rhythm Society

Disclosure: Nothing to disclose.


Robert E Fowles, MD Clinical Professor of Medicine, University of Utah College of Medicine; Consulting Staff, Intermountain Medical Center and LDS Hospital; Director and Consulting Staff, Department of Cardiology, Salt Lake Clinic

Robert E Fowles, MD is a member of the following medical societies: American College of Cardiology, American College of Physicians, and American Heart Association

Disclosure: Nothing to disclose.

Rakesh K Sharma, MD, FACC Adjunct Associate Professor of Medicine and Cardiology; University of Arkansas for Medical Sciences, Medical Center of South Arkansas

Disclosure: Nothing to disclose.

Vibhuti N Singh, MD, MPH, FACC, FSCAI Clinical Assistant Professor, Division of Cardiology, University of South Florida College of Medicine; Director, Cardiology Division and Cardiac Catheterization Lab, Chair, Department of Medicine, Bayfront Medical Center, Bayfront Cardiovascular Associates; President, Suncoast Cardiovascular Research

Vibhuti N Singh is a member of the following medical societies: American College of Cardiology, American College of Physicians, American Heart Association, American Medical Association, and Florida Medical Association

Disclosure: Nothing to disclose.

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AIVR and sinus rhythm: AIVR starts and terminates gradually, competing with sinus rhythm. A possible ventricular fusion beat (arrow) and isoarrhythmic AV dissociation (arrowheads: sinus P waves) are present. During AIVR, ectopic ventricular rate is just faster than sinus rate. AIVR has a wide QRS morphology different from the QRS morphology in sinus rhythm.
AIVR in atrial fibrillation: AIVR starts and terminates gradually, competing with the ventricular capture beats (arrow) from atrial fibrillation. Ventricular fusion beat (arrowhead) is present. AIVR has a wide QRS morphology different from the QRS morphology of ventricular capture beats.
Complete heart block with escaped junctional rhythm: The AV dissociation in complete heart block is not isoarrhythmic AV dissociation, because the atrial rate is much faster than the escaped junctional ventricular rate.
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