Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Long QT syndrome 1 ?
    ### Response:
    Romano-Ward syndrome is the most common form of inherited long QT syndrome. Symptoms include arrhythmia, fainting, cardiac arrest, and sudden death. There are six different types of this syndrome, long QT 1 through 6. Each type is caused by a change in a different gene.
    