Although a normal QT interval imparts a much lower risk of life-threatening ... there would be tremendous debate as to the probability of LQTS in an asymptomatic, postpubertal female with a QTc of 481 ...
The normal QT interval is controversial ... Due to the effects of heart rate, the corrected QT interval (QTc) is frequently used. The QTc is considered prolonged if greater than 450 ms in males ...
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