Journal of Electrocardiology
Volume 43, Issue 1 , Pages 25-30 , January 2010

Two automatic QT algorithms compared with manual measurement in identification of long QT syndrome

  • Ulla-Britt Diamant, MSc

      Affiliations

    • Heart Centre Clinical Physiology, Umeå University Hospital, Umeå, Sweden
    • Department of Surgical and Perioperative Sciences, Umeå University Hospital, Umeå, Sweden
  • ,
  • Annika Winbo, MD

      Affiliations

    • Division of Pediatric, Department of Clinical Sciences, Umeå University Hospital, Umeå, Sweden
  • ,
  • Eva-Lena Stattin, MD, PhD

      Affiliations

    • Department of Medical Biosciences, Medical and Clinical Genetics, Umeå University Hospital, Umeå, Sweden
  • ,
  • Annika Rydberg, MD, PhD

      Affiliations

    • Division of Pediatric, Department of Clinical Sciences, Umeå University Hospital, Umeå, Sweden
  • ,
  • Milos Kesek, MD, PhD

      Affiliations

    • Heart Centre Cardiology, Umeå University Hospital, Umeå, Sweden
    • Department of Public Health and Clinical Medicine, Umeå University Hospital, Umeå, Sweden
  • ,
  • Steen M. Jensen, MD, PhD, FESC

      Affiliations

    • Heart Centre Cardiology, Umeå University Hospital, Umeå, Sweden
    • Department of Public Health and Clinical Medicine, Umeå University Hospital, Umeå, Sweden
    • Corresponding Author InformationCorresponding author. Department of Cardiology, Heart Centre, Umeå University Hospital, 901 85 Umeå, Sweden.

Received 6 February 2009

References 

  1. Priori SG, Schwartz PJ, Napolitano C, et al. Risk stratification in the long-QT syndrome. N Engl J Med. 2003;348:1866
  2. Sauer AJ, Moss AJ, McNitt S, et al. Long QT syndrome in adults. J Am Coll Cardiol. 2007;49:329
  3. Goldenberg I, Moss AJ, Zareba W. QT interval: how to measure it and what is “normal”. J Cardiovasc Electrophysiol. 2006;17:333
  4. Murray A, McLaughlin NB, Bourke JP, et al. Errors in manual measurement of QT intervals. Br Heart J. 1994;71:386
  5. Zareba W, Badilini F, Moss AJ. Automatic detection of spatial and dynamic heterogeneity of repolarization. J Electrocardiol. 1994;27(Suppl):66
  6. Rautaharju PM, Zhou SH, Wong S, et al. Sex differences in the evolution of the electrocardiographic QT interval with age. Can J Cardiol. 1992;8:690
  7. Frank E. An accurate, clinically practical system for spatial vectorcardiography. Circulation. 1956;13:737
  8. Arvedson O. Methods for data acquisition and evaluation of electrogram and vectorcardiograms with digital computer. Thesis, University of Umeå. 1968.
  9. Sederholm M, Erhardt L, Sjögren A. Continuous vectorcardiography in acute myocardial infarction. Natural course of ST and QRS vectors. Int J Cardiol. 1983;4:53
  10. Jensen J, Eriksson SV, Lindvall B, et al. On-line vectorcardiography during elective coronary angioplasty indicates procedure-related myocardial infarction. Coron Artery Dis. 2000;11:161
  11. Bazett HC. An analysis of the time-relation of electrocardiograms. Heart. 1920;7:353
  12. GE Healthcare . Marquette™ 12SL™ ECG analysis program physician's guide. 2007;[416791-004 Revision D]
  13. Kesek M, Jernberg T, Lindahl B, et al. Principal component analysis of the T wave in patients with chest pain and conduction disturbances. Pacing Clin Electrophysiol. 2004;27:1378
  14. De Long DL, De Long DM, Clarke-Pearson DL. Comparing the areas under two or more correlated receiver operating characteristic curves: a nonparametric approach. Biometrics. 1988;44:837
  15. Restier-Miron L, Fayn J, Millat G, et al. Spatiotemporal electrocardiographic characterization of ventricular depolarization and repolarization abnormalities in long QT syndrome. J Electrocardiol. 2007;40:368
  16. Priori SG, Napolitano C, Schwartz PJ. Low penetrance in the long-QT syndrome: clinical impact. Circulation. 1999;99:529
  17. Hnatkova K, Gang Y, Batchvarov VN, Malik M. Precision of QT interval measurement by advanced electrocardiographic equipment. Pacing Clin Electrophysiol. 2006;29:1277
  18. Miller MD, Porter C, Ackerman MJ. Diagnostic accuracy of screening electrocardiograms in long QT syndrome I. Pediatrics. 2001;108:8
  19. Viskin S, Rosovski U, Sands AJ, et al. Inaccurate electrocardiographic interpretation of long QT: the majority of physicians cannot recognize a long QT when they see one. Heart Rhythm. 2005;2:569
  20. Schwartz PJ, Moss AJ, Vincent GM, Crampton RS. Diagnostic criteria for the long QT syndrome. An update. Circulation. 1993;88:782
  21. Edenbrandt L, Pahlm O. Vectorcardiogram synthesized from a 12-lead ECG: superiority of the inverse Dower matrix. J Electrocardiol. 1988;21:361

PII: S0022-0736(09)00536-6

doi: 10.1016/j.jelectrocard.2009.09.008

Journal of Electrocardiology
Volume 43, Issue 1 , Pages 25-30 , January 2010