Relationship of QT interval variability to heart rate and RR interval variability.

@article{Hnatkova2013RelationshipOQ,
  title={Relationship of QT interval variability to heart rate and RR interval variability.},
  author={Katerina Hnatkova and Donna L. Kowalski and James J. Keirns and E Marcel van Gelderen and Marek Malik},
  journal={Journal of electrocardiology},
  year={2013},
  volume={46 6},
  pages={591-6}
}
The study investigated whether the beat-to-beat QT interval variability relationship to the mean heart rate and the RR interval variability depended on the cardiovascular autonomic status changed by postural positioning. Repeated long-term 12-lead Holter recordings were obtained from 352 healthy subjects (mean age 32.7 ± 9.1 years, 176 females) while they underwent postural provocative tests involving supine, unsupported sitting and unsupported standing positions. Each recording was processed… CONTINUE READING

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QT interval variability in body surface ECG: measurement, physiological basis, and clinical value: position statement and consensus guidance endorsed by the European Heart Rhythm Association jointly with the ESC Working Group on Cardiac Cellular Electrophysiology.

Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology • 2016
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