QT-RR relationship in healthy subjects exhibits substantial intersubject variability and high intrasubject stability

American Journal of Physiology - Heart and Circulatory Physiology

Volumn 282, Issue 6 51-6, 2002, Pages

  Batchvarov, Velislav N ^a   Ghuran, Azad ^a   Smetana, Peter ^a   Hnatkova, Katerina ^a   Harries, Monica ^a   Dilaveris, Polychronis ^a   Camm, A John ^a   Malik, Marek ^a  

^a ST GEORGE'S UNIVERSITY OF LONDON   (United Kingdom)

Author keywords

Corrected QT interval; Repolarization

Indexed keywords

ADULT; ALGORITHM; ARTICLE; ELECTROCARDIOGRAM; FEMALE; HUMAN; HUMAN EXPERIMENT; MALE; MEASUREMENT; NORMAL HUMAN; PRIORITY JOURNAL; QT INTERVAL; REGRESSION ANALYSIS; REPOLARIZATION; RR INTERVAL;

EID: 0036086224     PISSN: 03636135     EISSN: None     Source Type: Journal    
DOI: 10.1152/ajpheart.00860.2001     Document Type: Article

References (37)

1. Comparison of formulae for heart rate correction of QT interval in exercise electrocardiograms
2. QT interval and QT dispersion measured with the threshold method depend on threshold level
3. An analysis of the time-relations of electrocardiograms
4. Modulation of the Q-T interval by the autonomic nervous system
5. Sympathetic and vagal influences on rate-dependent changes of QT interval in healthy subjects
6. A new physiological method for heart rate correction of the QT interval
7. Prolonged QT interval predicts cardiac and all-cause mortality in the elderly. The Rotterdam study
8. Cycle length dependence of human action potential duration in vivo: Effects of single extrastimuli, sudden sustained rate acceleration and deceleration, and different steady-state frequencies
9. Die systolendauer in elektrokardiogram bei normalen menschen und bei herzkranken
10. Rate-corrected QT interval: Techniques and limitations
11. Dynamics of the QT interval in patients with exercise-induced ventricular tachycardia in normal and abnormal hearts
12. The potential for QT prolongation and proarrhythmia by non-antiarrhythmic drugs: Clinical and regulatory implications. Report on a Policy Conference of the European Society of Cardiology
13. Rate correction of the QT interval
14. Relation between QT interval and heart rate, applications and limitations of Bazett's formula
15. The duration of the QT interval as a function of heart rate: A derivation based on physical principles and comparison to measured values
16. Dynamic analysis of the QT interval in long QT 1 syndrome patients with a normal phenotype
17. Hysteresis of the ventricular paced QT interval in response to abrupt changes in pacing rate
18. Physiologic relation between cardiac cycle and QT duration in healthy volunteers
19. Problems of heart rate correction in assessment of drug-induced QT interval prolongation
20. Measurement, interpretation and clinical potential of QT dispersion
21. Evaluation of drug-induced QT interval prolongation
22. The relationship between QT and RR intervals is highly individual among healthy subjects-Implications for heart rate correction of the QT interval
23. Identification of electrocardiographic patterns
24. Comparison of automatic QT measurement techniques in the normal 12 lead electrocardiogram
25. Evaluation of five QT correction formulas using a software-assisted method of continuous QT measurement from 24-hour Holter recordings
26. Assessment of QT interval and QT dispersion for prediction of all-cause and cardiovascular mortality in American Indians. The Strong Heart Study
27. Response of the QT interval to mental and physical stress in type LQT 1 and LQT2 of the long QT syndrome
28. Low penetrance in the long-QT syndrome. Clinical impact
29. Estimation of QT prolongation. A persistent, avoidable error in computer electrocardiography
30. Relation between QT interval and heart rate. New design of physiologically adaptive cardiac pacemaker
31. Taking the "idio" out of "idiosyncratic": Predicting torsades de pointes
32. An improved method for adjusting the QT interval for heart rate (the Framingham Heart Study)
33. QT interval prolongation predicts cardiovascular mortality in an apparently healthy population
34. QT interval prolongation as predictor of sudden death in patients with myocardial infarction
35. Sinus node function and ventricular repolarization during exercise stress test in long QT syndrome patients with KvLQT 1 and HERG potassium channel defects
36. Changes in the QT interval and its adaptation to rate, assessed with continuous electrocardiographic recordings in patients with ventricular fibrillation, as compared to normal individuals without arrhythmias
37. New algorithms for QT dispersion analysis