Editorial
Volume 7 Issue 7 - 2020
Tpeak-Tend Interval/QT Ratio in Percutaneous Coronary Intervention
Osmar Antonio Centurión1,2*, Karina E Scavenius1,2, Christian O Chavez1 and Orlando R Sequeira2
1Department of Health Sciences’ Investigation, Sanatorio Metropolitano, Fernando de la Mora, Paraguay
2Cardiology Department, First Department of Internal Medicine, Clinic Hospital, Asunción National University, San Lorenzo, Paraguay
*Corresponding Author: Osmar Antonio Centurión, Professor of Medicine, Asuncion National University and Department of Health Sciences’ Investigation, Sanatorio Metropolitano, Fernando de la Mora, Paraguay.
Received: May 17, 2020; Published: June 02, 2020




Coronary heart disease (CHD) is the leading cause of mortality and morbidity worldwide affecting nearly 16 million persons over 20 years of age in the USA [1-4]. Ventricular arrhythmias are the more predominant cause of sudden cardiac death (SCD) in patients with coronary heart disease [5-7]. Several electrocardiographic indices have been proposed for risk stratification and prognosis in patients with coronary heart disease [8-10]. It is well known the association of prolonged QT interval and malignant ventricular arrhythmias and SCD. A prolonged QT interval has been shown to be closely associated with increased risk for SCD in some congenital and acquired channelopathies. Therefore, several studies have used the prolongation of QT interval as an index for predicting fatal arrhythmia and SCD in different entities [11-13]. In addition, another electrocardiographic interval, the interval from the peak of the T wave to the end the T wave, that is, the Tpeak-Tend (Tp-Te) interval has been proposed to be utilized in the prediction of malignant ventricular arrhythmias and SCD in some ion channel diseases [14-16].

References

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  11. Dekker JM., et al. “Heart rate-corrected QT interval prolongation predicts risk of coronary heart disease in black and white middle-aged men and women: the ARIC study”. Journal of the American College of Cardiology 43 (2004): 565-571.
  12. Goldenberg I., et al. “Corrected QT variability in serial electrocardiograms in long QT syndrome: the importance of the maximum corrected QT for risk stratification”. Journal of the American College of Cardiology 48 (2006): 1047-1052.
  13. Jimenez-Candil J., et al. “Short and long-term prognostic value of the corrected QT interval in the non-ST-elevation acute coronary syndrome”. Journal of Electrocardiology 40 (2007): 180-187.
  14. Castro Hevia J., et al. “Tpeak-Tend and Tpeak-Tend dispersion as risk factors for ventricular tachycardia/ventricular fibrillation in patients with the Brugada syndrome”. Journal of the American College of Cardiology 47 (2006): 1828-1834.
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  17. Yan GX., et al. “Ventricular repolarization components on the electrocardiogram: cellular basis and clinical significance”. Journal of the American College of Cardiology 42 (2003): 401-409.
  18. Yan GX and Martin J. “Electrocardiographic T wave: a symbol of transmural dispersion of repolarization in the ventricles”. Journal of Cardiovascular Electrophysiology 14 (2003): 639-640.
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  20. Gupta P., et al. “Tp-e/QT ratio as an index of arrhythmogenesis”. Journal of Electrocardiology 41 (2008): 567-574.
  21. Shu J., et al. “Tp-e/QT ratio as a predictive index of sudden cardiac death in patients with ST-segment elevation myocardial infarction”. Journal of Xi'an Jiaotong University Medical Sciences 31 (2010): 441-443.
  22. Zhao X., et al. “Association Between Tp-e/QT Ratio and Prognosis in Patients Undergoing Primary Percutaneous Coronary Intervention for ST-Segment Elevation Myocardial Infarction”. Clinical Cardiology 9 (2012): 559-564.
  23. Wang X., et al. “Tpeak-Tend/QT interval predicts ST-segment resolution and major adverse cardiac events in acute ST-segment elevation myocardial infarction patients undergoing percutaneous coronary intervention”. Medicine 97 (2018): e12943.
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Citation: Osmar Antonio Centurión., et al. “Tpeak-Tend Interval/QT Ratio in Percutaneous Coronary Intervention”. EC Cardiology 7.7 (2020): 01–03.

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