Journal of Electrocardiology
Volume 42, Issue 6 , Pages 500-504 , November 2009

24-Hour QT variability in heart failure

  • Craig P. Dobson

      Affiliations

    • Children's National Medical Center, Washington, DC, USA
    • ,
  • Maria Teresa La Rovere

      Affiliations

    • Fondazione S. Maugeri, IRCCS, Instituto Scientifico di Montescano, Montescano (Pavia), Italy
    • ,
  • Cara Olsen

      Affiliations

    • Uniformed Services University of the Health Sciences, Bethesda, MD, USA
    • ,
  • Marino Berardinangeli

      Affiliations

    • Ospedale Civile, Rho (Milano), Italy
    • ,
  • Marco Veniani

      Affiliations

    • Ospedale Civile S. Giuseppe, Albano Laziale (Roma), Italy
    • ,
  • Paolo Midi

      Affiliations

    • USL 4, Terni, Italy
    • ,
  • Luigi Tavazzi

      Affiliations

    • GVM Hospitals of Care and Research, Cotignola (Ravenna), Italy
    • ,
  • Mark Haigney

      Affiliations

    • Uniformed Services University of the Health Sciences, Bethesda, MD, USA
    • Corresponding Author InformationCorresponding author. Division of Cardiology, Department of Medicine, Uniformed Services University of the Health Sciences, A3060, USUHS, 4301 Jones Bridge Road, Bethesda, MD 20814, USA.
    • ,
  • on behalf of the GISSI-HF Investigators

Received 11 April 2009

References 

  1. Berger RD, Kasper EK, Baughman KL, Marban E, Calkins H, Tomaselli GF. Beat-to-beat QT interval variability: novel evidence for repolarization lability in ischemic and nonischemic dilated cardiomyopathy. Circulation. 1997;96:1557
  2. Haigney MC, Zareba W, Gentlesk PJ, et al. QT interval variability and spontaneous ventricular tachycardia or fibrillation in the Multicenter Automatic Defibrillator Implantation Trial (MADIT) II patients. J Am Coll Cardiol. 2004;44:1481
  3. Tavazzi L, Tognoni G, Franzosi MG, et al. Rationale and design of the GISSI Heart Failure trial: a large trial to assess the effects of n-3 polyunsaturated fatty acids and rosuvastatin in symptomatic congestive heart failure. Eur J Heart Fail. 2004;6:635
  4. Raghunandan DS, Desai N, Mallavarapu M, Berger RD, Yeragani VK. Increased beat-to-beat QT variability in patients with congestive cardiac failure. Indian Heart J. 2005;57:138
  5. Yang T, Roden DM. Extracellular potassium modulation of drug block of IKr. Implications for torsade de pointes and reverse use-dependence. Circulation. 1996;93:407
  6. Jensen BT, Abildstrom SZ, Larroude CE, et al. QT dynamics in risk stratification after myocardial infarction. Heart Rhythm. 2005;2:357
  7. Browne KF, Prystowsky E, Heger JJ, Chilson DA, Zipes DP. Prolongation of the Q-T interval in man during sleep. Am J Cardiol. 1983;52:55
  8. Tofler GH, Gebara OCE, Mittleman MA. Morning peak in ventricular tachyarrhythmias detected by time of implantable cardioverter/defibrillator therapy. Circulation. 1995;92:1203
  9. Muller JE, Ludmer PL, Willich SN. Circadian variation in the frequency of sudden cardiac death. Circulation. 1987;75:131

☆ Disclaimer: The views expressed in this article reflect the opinions of the authors only and not the official policy of the United States Army, Uniformed Services University, or the Department of Defense.

PII: S0022-0736(09)00266-0

doi: 10.1016/j.jelectrocard.2009.06.021

Journal of Electrocardiology
Volume 42, Issue 6 , Pages 500-504 , November 2009

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