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  • Arrhythmia (Abnormal Heartbeat) for Parents


    An arrhythmia is an abnormal heartbeat usually caused by an electrical "short circuit" in the heart. Many are minor and not a health threat, but some can indicate a more serious problem.

  • A to Z: Arrhythmia for Parents


    An arrhythmia is an abnormal heart rhythm usually caused by an electrical "short circuit" in the heart.

  • A to Z: Palpitations for Parents


    Learn about arrhythmias and conditions that affect the heart and heartbeat.

  • Heart Palpitations for Parents


    Heart palpitations are rapid or irregular heartbeats that make it feel like the heart is racing or fluttering. They usually aren't a sign of a health problem, and most kids who have them won't need to limit their physical activity.

  • Supraventricular Tachycardia (SVT) for Parents


    Supraventricular tachycardia is a type of abnormal heart rhythm in which the heart beats very quickly.

  • A to Z: Dysrhythmia for Parents


    Learn more about dysrhythmia: an abnormality in the heart's beat or rhythm caused by electrical impulses functioning improperly.

  • Myocarditis for Parents


    The muscle that makes up the heart is called the myocardium. Myocarditis is when this muscle gets inflamed (swollen).

  • A to Z: Ventricular Tachycardia for Parents


    Learn about ventricular tachycardia, a potentially life-threatening arrhythmia in which the heart beats too rapidly.

  • A to Z: Paroxysmal Supraventricular Tachycardia (PSVT) for Parents


    Paroxysmal supraventricular tachycardia (PSVT) is a type of arrhythmia in which the heart beats very rapidly.

  • A to Z: Cardiac Arrest for Parents


    With this medical emergency, the heart suddenly stops beating and prevents oxygen from getting to the body. Read more about it here.