QT interval measurements

Cardiac Electrophysiology Review

Volumn 6, Issue 3, 2002, Pages 273-277

  Kautzner, Josef ^a  

^a INSTITUTE FOR CLINICAL AND EXPERIMENTAL MEDICINE   (Czech Republic)

Author keywords

Measurement error; QT dispersion; QT interval; Repolarization

Indexed keywords

ARTICLE; BODY SURFACE; CARDIOVASCULAR PARAMETERS; CLINICAL RESEARCH; CONTROLLED STUDY; ELECTROCARDIOGRAM; HEART DEPOLARIZATION; HEART MUSCLE POTENTIAL; HEART RATE; HEART REPOLARIZATION; HEART VENTRICLE CONTRACTION; HUMAN; MEASUREMENT; NONHUMAN; QRS COMPLEX; QT INTERVAL; SYSTOLE; SYSTOLIC TIME INTERVAL; T WAVE;

ARRHYTHMIA; ELECTROCARDIOGRAPHY; HEART VENTRICLES; HUMANS; REPRODUCIBILITY OF RESULTS; SYSTOLE; VENTRICULAR FUNCTION;

EID: 0036754034     PISSN: 13852264     EISSN: None     Source Type: Journal    
DOI: 10.1023/A:1016389227576     Document Type: Article

References (29)

1. Schweitzer P. The values and limitations of the QT interval in clinical practice. Am Heart J 1992;124:1121-1126.
2. Abildskov JA. The prolonged QT interval. Ann Rev Med 1979;30:171-179.
3. Burgess M, Millar K, Abildskov JA. Cancellation of electrocardiographic effects during ventricular recovery. J Electrocardiol 1969;2:101-107.
4. Kors JA, van Herpen G. Measurement error as a source of QT dispersion: A computerized analysis. Heart 1998;80:453-458.
5. Antzelevitch C, Sicouri S, Litovsky SH, Lukas A, Krishman SC, Di Diego JM, Gintant GA, Liu DW. Heterogeneity within the ventricular wall: Electrophysiology and pharmacology of epicardial, endocardial and M cells. Circ Res 1991;69:1427-1449.
6. Antzelevitch C, Sicouri S. Clinical relevance of cardiac arrhythmias generated by afterdepolarizations: Role of M cells in the generation of U waves, triggered activity and torsade de pointes. J Am Coll Cardiol 1994;23:259-277.
7. 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 1998;98:2314-2322.
8. Kautzner J, Gang Y, Kishore AGR, Copie X, Janota T, Nagayoshi H, Camm AJ, Malik M. Interobserver reproducibility of QT interval measurement and QT dispersion in patients after acute myocardial infarction. Ann Noninv Electrophysiol 1996;1:363-374.
9. Sylven JC, Horacek BM, Spencer A, Klassen GA, Montague TJ. QT interval variability on the body surface. J Electrocardiol 1984;17:179-188.
10. Cowan JC, Yusoff K, Moore M, Amos PA, Gold AE, Bourke JP, Tansuphaswadikul S, Campbell RWF. Importance of lead selection in QT interval measurement. Am J Cardiol 1998;61:83-87.
11. Day CP, McComb JM, Campbell RWF. QT dispersion: An indication of arrhythmia risk in patients with long QT intervals. Br Heart J 1990;63:342-344.
12. Kautzner J, Gang Y, Camm AJ, Malik M. Short- and long-term reproducibility of QT, QTc, and QT dispersion measurement in healthy subjects. PACE 1994;17:928-937.
13. Kautzner J, Malik M. QT interval dispersion and its clinical utility. PACE 1997;20:2625-2640.
14. 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. Circulation 1998;97:2543-2550.
15. Brendorp B, Elming H, Jun L, Kober L, Malik M, Jensen GB, Torp-Pedersen C. QT dispersion has no prognostic information for patients with advanced congestive heart failure and reduced left ventricular systolic function. Circulation 2001;103:831-835.
16. Kors JA, van Herpen G, van Bemmel JH. QT dispersion as an attribute of T-loop morphology. Circulation 1999;99:1458-1463.
17. Macfarlane PW, McLaughlin SC, Rodger C. Influence of lead selection and population on automated measurement of QT dispersion. Circulation 1998;98:2160-2167.
18. Acar B, Gang Y, Hnatkova K, Malik M. Spatial, temporal and wavefront direction characteristics of 12/lead T wave morphology. Med Biol Eng Comput 1999;37:574-584.
19. di Bernardo D, Langley P, Murray A. Dispersion of QT intervals: A measure of dispersion of repolarization or simply a projection effects? PACE 2000;23:1392-1396.
20. Murray A, McLaughlin NB, Bourke JP, Doig JC, Furniss SS, Campbell RWF. Errors in manual measurement of QT intervals. Br Heart J 1994;71: 386-390.
21. Faber TS, Kautzner J, Zehender M, Camm AJ, Malik M. Impact of electrocardiogram recording format on QT interval measurement and QT dispersion assessment. PACE 2001;24:1739-1747.
22. Tran HT, Fan C, Tu WQ, Kertland H, Li L, Kluger J, Chow MSS. QT measurement: A comparison of three simple methods. Ann Noninv Electrocardiol 1998;3:228-231.
23. Savelieva I, Gang Y, Guo XH, Hnatkova K, Malik M. Agreement and reproducibility of automatic versus manual measurement of QT interval and QT dispersion. Am J Cardiol 1998;81:471-477.
24. Copie X, Alonso C, Lavergne T, Iliou MC, Guize L, Le Heuzey JY. Reproducibility of QT interval measurements obtained from 24-hour digitized ambulatory three-lead electrocardiograms in patients with acute myocardial infarction and healthy volunteers. Ann Noninv Electrocardiol 1998;3:38-45.
25. McLaughlin NB, Campbell RWF, Murray A. Accuracy of four automatic QT measurement techniques in cardiac patients and healthy subjects. Heart 1996;76:422-426.
26. Batchvarov V, Gang Y, Guo X, Savelieva I, Camm AJ, Malik M. QT interval and QT dispersion measured with the threshold method depend on threshold level. PACE 1998;21:2372-2375.
27. Homs E, Marti V, Guindo J, Laguna P, Viñolas X, Caminal P, Elosua R, Bayés de Luna A. Automatic measurement of corrected QT interval in Holter recordings: Comparison of its dynamic behavior in patients after myocardial infarction with and without life-threatening arrhythmias. Am Heart J 1997;134:181-187.
28. Nakagawa M, Iwao T, Ishida S, Takahashi N, Yonemochi H, Asada M, Shimada S, Saikawa T, Ito M. Dynamics of QT interval in a patient with long QT syndrome and a normal QT interval. Jpn Circ J 1998;62:215-218.
29. Christiansen JL, Guccione P, Garson A, Jr. Difference in QT interval measurement on ambulatory ECG compared with standard ECG. PACE 1996;19:1296-1303.