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Thanks, Judy, for adding your perspective. I will clarify for the younger generation that PAT is now known as SVT, and for the lay public, it refers to a very high heart rate that moves through an abnormal pathway in the heart, and often requires a shock or very strong medicine to correct. It is a dangerous fast rhythm in young children, because they don't have time for the heart to fill with blood before the next beat comes along--leading eventually to heart failure

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