Key result
Novel combined QRS and T wave alternans pattern emerges during sleep in pediatric LQTS.
Case Report (n=1)
No
Combined QRS and T wave alternans is a novel electrocardiographic phenomenon in long QT syndrome that may indicate a high risk for life-threatening arrhythmias.
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Does not support practice change in pediatric LQTS; hypothesis-generating for combined QRS-T alternans as arrhythmia marker.
A previously undescribed electrocardiographic pattern is presented in a female patient with long QT syndrome in the form of combined QRS complex and T wave alternans. Possible electrophysiological mechanisms and prognostic value are discussed
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Макаров et al. (2024) conducted a case report in Long QT syndrome (n=1). Observation of combined QRS and T wave alternans was evaluated on Description of electrocardiographic pattern. A previously undescribed electrocardiographic pattern of combined QRS complex and T wave alternans was observed during sleep in a 6-year-old girl with long QT syndrome.
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