Beat-to-beat QT dynamics in healthy subjects.

@article{Jensen2004BeattobeatQD,
  title={Beat-to-beat QT dynamics in healthy subjects.},
  author={Berit T Jensen and Charlotte Ellen Larroude and Lars P Rasmussen and Niels-Henrik Holstein-Rathlou and Michael V Hojgaard and Erik Agner and J\orgen K. Kanters},
  journal={Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc},
  year={2004},
  volume={9 1},
  pages={3-11}
}
BACKGROUND Measures of QT dynamics express repolarization abnormalities that carry prognostic information, but the reproducibility of beat-to-beat QT dynamics has never been established. The QT interval is prolonged at night, but how the circadian rhythm and heart rate influence the dynamic QT measurements is still unsettled. The aims of the present study were: (1) to describe the reproducibility of beat-to-beat QT dynamics with respect to intrasubject, between-subject, and between-observer… CONTINUE READING

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