Noninvasive indices of repolarization and its dispersion

Journal of Electrocardiology

Volumn 32, Issue SUPPL., 1999, Pages 153-157

  Lux, Robert L ^a   Fuller, Marc S ^a   MacLeod, Robert S ^a   Ershler, Philip R ^a   Punske, Bonnie B ^a   Taccardi, Bruno ^a  

^a UNIVERSITY OF UTAH SCHOOL OF MEDICINE   (United States)

Author keywords

Activation recovery interval; Dispersion; Repolarization; Root mean square

Indexed keywords

CONFERENCE PAPER; DOG; EPICARDIUM MAPPING; HEART ARRHYTHMIA; HEART REPOLARIZATION; ISOLATED HEART; PRIORITY JOURNAL; R WAVE; T WAVE;

EID: 0033367782     PISSN: 00220736     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0022-0736(99)90073-0     Document Type: Conference Paper

References (24)

1. Han J, Garcia de Jalon PD, Moe GK: Fibrillation threshold of premature ventricular responses. Circ Res 18:18, 1966
2. Han J, Moe GK: Nonuniform recovery of excitability in ventricular muscle. Circ Res 14:44, 1964
3. Han J, Millet D, Chizzonitti B, Moe GK: Temporal dispersion of recovery of excitability in atrium and ventricle as a function of heart rate. Am Heart J 71:481, 1966
4. Abildskov J, Lux R: Mechanisms of simulated torsade de pointes. J Cardiovasc Electrophysiol 4:547, 1993
5. Abildskov JA, Lux R: Sprial waves in a computer model of cardiac excitation. Pacing Clin Electrophysiol 17:944, 1994
6. Abildskov J, Lux R: Cycle length effects on the initiation of simulated torsade de pointes. J Electrocardiol 27:1, 1994
7. Kubota L, Lux RL, Burgess MJ, Abildskov JA: Relation of cardiac surface QRST distributions to ventricular fibrillation threshold in dogs. Circulation 78:171, 1988
8. Kubota L, Lux RL, Burgess MJ, Abildskov JA: Activation sequence at the onset of arrhythmias induced by localized myocardial warming and programmed premature stimulation in dogs. J Electrocardiol 21:345, 1988
9. Antzelevitch C, Shimizu W, Yan GX, Sicouri S: Cellular basis for QT dispersion. J Electrocardiol 30:168, 1998
10. Yan GX, Shimizu W, Antzelevitch C: Characteristics and distribution of M cells in arterially perfused canine left ventricular wedge preparations. Circulation 98:1921, 1998
11. Shimizu W, Antzelevitch C: Cellular and ionic basis for T-wave alternans under long-QT conditions. Circulation 99:1499, 1999
12. Shimizu W, McMahon B, Antzelevitch C: Sodium pentobarbital reduces transmural dispersion of repolarization and prevents torsades de pointes in models of acquired and congenital long QT syndrome. J Cardiovasc Electrophysiol 10:154, 1999
13. Shimizu W, Antzelevitch C: Cellular basis for the ECG features of the LQT1 form of the long-QT syndrome: effects of beta-adrenergic agonists and antagonists and sodium channel blockers on transmural dispersion of repolarization and torsade de pointes. Circulation 98:2314, 1998
14. Shimizu W, Antzelevitch C: Sodium channel block with mexiletine is effective in reducing dispersion of repolarization and preventing torsade des pointes in LQT2 and LQT3 models of the long-QT syndrome. Circulation 96:2038, 1997
15. Punske B, Lux R, MacLeod R, et al: Mechanisms of the spatial distribution of QT intervals on the epicardial and body surfaces. J Cardiac Electrophysiol (in press)
16. Lux RL, Fuller MS, MacLeod RS, et al: QT interval dispersion: dispersion of ventricular repolarization or dispersion of QT interval? J Electrocardiol 30:176, 1998
17. Tomassoni G, Pisano E, Gardner L, et al: QT prolongation and dispersion in myocardial ischemia and infarction. J Electrocardiol 30:187, 1998
18. Zabel M, Klingenheben T, Franz MR, Hohnloser SH: Assessment of QT dispersion for prediction of mortality or arrhythmic events after myocardial infarction: results of a prospective, long-term follow-up study [see comments]. Circulation 97:2543, 1998
19. Zabel M, Franz MR, Siedow A, et al: QT dispersion as a marker of risk in patients awaiting heart transplantation? [letter; comment]. J Am Coll Cardiol 31: 1442, 1998
20. Fuller M, Sandor G, Punske B, et al: Estimates of repolarization and its dispersion from electrocardiographic measurements: direct epicardial assessment in the canine heart. J Cardiac Electrophysiol (under review)
21. MacLeod R, Taccard B, Lux R: Electrocardiographic mapping in a realistic torso tank preparation p. 245. In Proceedings of the IEEE Engineering in Medicine and Biology 17th Annual Conference. IEEE, Montreal, 1995
22. Haws C, Lux R: Correlation between in vivo transmembrane action potential durations and activation-recovery intervals from electrograms: effects of interventions which alter repolarization time. Circulation 81:281, 1990
23. Witkowski F, Penkoske P: A completely automated activation-repolarization interval algorithm for directly coupled unipolar electrograms and its three-dimensional correlation with refractory periods. J Electrocardiol 21:273, 1988
24. Millar C, Kralios F, Lux R: Correlation between refractory periods and activation-recovery intervals from electrograms: effects of rate and adrenergic interventions. Circulation 72:1372, 1985