RT-43
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A new computer programme for
Holter ECG (3 orthogonal leads) to evaluate dynamically the QT dispersion, as well as its
correlation to RR intervals
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Antonio Conti, Antonio
Michelucci*, Simone Mininni*, Mauro Lenuzza*, Andrea A. Conti*, Chiara Lazzeri**, Giuseppe
Petrogalli***, Giuseppe Catto***, Franco Franchi**, Gian Franco Gensini*.
Dept. of Clinical Physiopathology, *Dept. of Internal Medicine and Cardiology, **Dept. of
Internal Medicine and Gastroenterology, University of Florence, ***ELA Medical, Italy.
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References
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1.
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Statters DJ, Malik M, Ward DE, Camm AJ:
QT dispersion: problems of methodology and clinical significance.
J Cardiovasc Electrophysiol, 1994; 5: 672-685.
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2.
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Zabel M, Portnoy S, Franz MR:
Electrocardiographic indexes of dispersion of ventricular repolarization: an isolated
heart validation study.
J Am Coll Cardiol 1995; 25: 746-752.
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3.
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Higham PD, Hilton CJ, Aitcheson JD, Furniss SS, Bourke
JP, Campbell RWC:\WWW
Does QT dispersion reflect dispersion of ventricular recovery?
Circulation 1992; 86 (Suppl I): I-392.
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4.
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Hardmann SMC, Walker JM, Cowie MR, Sutton PMI, Taggart
P:
Can QT interval in a roving precordial ECG lead detect regional differences in endocardial
action potential duration in humans?
Circulation 1995; 92: I-275.
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5.
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Hii JTY, Wise G, Gillis AM, Duff HJ, Solylo MA,
Mitchell B:
Precordial QT interval dispersion as a marker of torsade de pointes: disparate effects of
class IA antiaarhythmic drugs and amiodarone.
Circulation 1992; 86: 1376-1382.
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6.
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Honloser SH, Van de Loo A:
Does sotalol-induced alteration of QT dispersion predict drug effectiveness or
proarrhythmic hazards?
Circulation 1993; 88: 397.
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7.
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Priori SG, Napolitano C, Schwartz JP:
Dispersion of the QT interval. A marker of therapeutic efficacy in the idiopathic long QT
syndrome.
Circulation, 1994; 89: 1681-1689.
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8.
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Michelucci A, Conti A, Frati M, Mininni S, Padeletti
L, Porciani MC, Rostagno C, Galanti G, Catto G, Petrogalli G, Gensini GC:\WWW
Circadian pattern of the QT dispersion using 3 orthogonal leads of a Holter ECG in
patients with heart failure.
Ann Noninvasive Cardiol, in press.
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9.
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Hnatkova K, Malik M, Kautzner J:
Adjustment of QT dispersion assessed from 12 lead electrocardiograms for different numbers
of analysed electrocardiographic leads: comparison of stability of different methods.
Br Heart J 1994; 72: 390-396.
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10.
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Zareba W, Moss AJ:
Dispersion of repolarization evaluated in three orthogonal-type electrocardiographic
leads: L1, avF, V2.
PACE 1995; 18: 895.
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11.
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Glancy JM, Garratt CJ, Woods KL, De Bono DP:
Three-lead measurement of QTc dispersion.
J Cardiovasc Electrophysiol 1995; 6: 987-992.
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12.
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Maison Blanche P, Catuli D, Fayn J, Coumel P:
QT interval, heart rate and ventricular arrhythmias.
In: Moss A J, Stern S (eds): Non invasive electrocardiology. Clinical aspects of Holter
monitoring.
London, WB Saunders Company, 1996; 405-419.
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