Pediatric Cardiology

, Volume 29, Issue 2, pp 457–462 | Cite as

Accelerated Idioventricular Rhythm in Newborns: A Worrisome But Benign Entity with or without Congenital Heart Disease

  • G. FreireEmail author
  • I. Dubrow
Case Report


Broad QRS rhythms (fast and slow) are worrisome findings in newborns. We present five cases with varied clinical presentations found to have broad QRS tachycardias, consistent with idioventricular rhythms. Each patient had an excellent prognosis because the tachycardias resolved, and eventually the patients were in sinus rhythm. None were symptomatic from their arrhythmia. It is important to establish the diagnosis when it occurs to differentiate this benign phenomenon from dangerous ventricular tachycardia.


Accelerated ventricular rhythm Ventricular tachycardia 



We thank Dr. SuChiung Chen, Cardinal Glennon’s Children Hospital, Saint Louis University.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.The Heart Institute for Children North and South Campuses— Lutheran General HospitalPark RidgeUSA
  2. 2.Hope Children’s HospitalOak LawnUSA
  3. 3.Saint Louis University, Cardinal Glennon Children’s Hospital, Pediatric Cardiology R A515St. LouisUSA

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