Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Wolff-Parkinson-White syndrome ?
    ### Response:
    Wolff-Parkinson-White syndrome is a condition characterized by abnormal electrical pathways in the heart that cause a disruption of the heart's normal rhythm (arrhythmia).  The heartbeat is controlled by electrical signals that move through the heart in a highly coordinated way.
    