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Pediatric Arrhythmia

Key points about arrhythmias in children

  • An arrhythmia is an abnormal heart rhythm. It may be a heart rate that is too fast, too slow or irregular.
  • The cause may not be known. In some cases it is caused by a problem that's present at birth, a problem that's inherited, or an infection.
  • There may not be any symptoms. Or a child may have moderate to very serious symptoms.
  • Your child may need to see a pediatric heart doctor (cardiologist) for a diagnosis. Your child may also need tests.
  • Some children don't need treatment. If treatment is given, your child may need medicine, radiofrequency ablation, a device or surgery.
Children's Team

Children's Team


Charles Berul

Charles Berul

Division Chief, Cardiology
Co-Director, Children's National Heart Institute
Jeffrey Moak

Jeffrey Moak

Director, Electrophysiology Program
Ashraf Harahsheh

Ashraf Harahsheh

Director, Quality Outcomes in Cardiology
Director, Kawasaki Disease Program
Director, Cardiology Resident Education
Medical Unit Director, Northern Virginia and Fredericksburg



Our pediatric electrophysiologists perform ablations and other procedures to correct abnormal heart rhythms, with a success rate close to 98 percent. Learn more about Cardiac Electrophysiology.

Critical Care Medicine

With the only pediatric, cardiac and neuro-intensive care units in the immediate Washington, D.C., area, Children’s National Hospital is the region’s leading provider of critical care medicine for seriously ill and injured infants and children.

Prenatal Cardiology Program

Children diagnosed with heart conditions before they are born receive comprehensive, expert care from our fetal cardiology specialists. Learn more about our Prenatal Cardiology Program.

Children's National Heart Institute

Our expert pediatric heart team, including more than 40 subspecialties, offer advanced heart care and excellent outcomes for thousands of children every year.


The pediatric heart experts at Children’s National Hospital in Washington, D.C., provide advanced care for unborn babies, children and young adults with heart conditions.