The heart is a muscular pump, which requires an electrical current to make it beat. Unlike other muscles in the body, the heart creates its own electrical current because it has its own natural conduction system.
Arrhythmias are abnormal heart rhythms that result from problems with that conduction system.
Although arrhythmias are more common in adults than in children, they may occur at any age, including in children with otherwise normal hearts, in association with congenital heart defects, or after surgery for congenital heart disease.
Disorders Associated with Arrhythmias
Pediatric heart arrhythmias are often associated with the following heart disorders:
- Primary atrial tachycardias, including atrial flutter and atrial fibrillation
- Supraventricular tachycardias (SVT)
- Wolff-Parkinson-White syndrome
- Ventricular tachycardias (VT)
- Ventricular fibrillation (resuscitated sudden death)
- Inherited cardiac arrhythmias, including long QT syndrome, Brugada syndrome, hypertrophic cardiomyopathy, and others
- Heart block
- Sinus node dysfunction
- Conditions related to the autonomic nervous system, such as neurocardiogenic (vasovagal) syncope and postural orthostatic tachycardia syndrome (POTS)
- Patients having previously placed pacemakers or defibrillators (ICDs)
Symptoms of Pediatric Heart Arrhythmias
Diagnostic services are especially important for young patients having symptoms that may represent disorders of the cardiac electrical system, but a diagnosis has not yet been made. These symptoms include:
- Sudden onset of palpitations (sense that the heart is beating too fast)
- Syncope (fainting), especially during physical activities
- Unusual and sudden shortness of breath, especially during physical activities
- Persistent fatigue, especially if associated with episodic light-headedness or fainting
- An episode of successfully resuscitated cardiac arrest
- Circumstances in which a close family member has certain conditions, which may be inherited, such as long QT syndrome, Brugada syndrome, hypertrophic cardiomyopathy, or dilated cardiomyopathy
Appointments
Initial referrals to the Duke Children’s Heart Program are generally made by your child’s primary care physician. To make an appointment, please call 919-668-4000.
Registered Nurse
Angela Lloyd, RN
Nurse Practitioner
Christine Agee, CPNP
Physicians
Physicians offering this service include:
Locations
This service is available at: