Microvolt T-wave alternans as predictor of electrophysiological testing results in professional competitive athletes

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
Francesco FurlanelloRiccardo Cappato

Abstract

Several studies have confirmed the equivalence of the microvolt T-wave alternans (mTWA) and the electrophysiology (EPS) tests in cardiac disease. No data are available in populations of competitive athletes with arrhythmias that might jeopardize the pursuit of their professional career. We prospectively studied 100 trained competitive athletes, including elite types (72/100), (mean age +/- standard deviation: 26.1 +/- 4.5 years). Forty-eight of them were wholly normal (Group A, mean age: 24.5 +/- 8.5 years) and 52 of them had severe arrhythmias (Group B, mean age: 28.2 +/- 11.5 years) and were symptomatic in 85% of cases for prolonged palpitations and syncope, but lacked any overt structural heart disease at standardized cardiological screening. All athletes were evaluated with the microvolt T-wave alternans exercise-stress test, using the Heart Wave System with Microvolt Sensors. Group B underwent EPS to evaluate inducibility to sustained ventricular tachycardia (VT) during programmed electrical stimulation. In Group A, the mTWA outcome was determinate in 45 subjects (94%) and indeterminate in 3 (6%). No symptomatic event was reported in a follow-up of 36.1 months. In Group B, the mTWA test was positive in 7 symptomatic subjec...Continue Reading

References

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Citations

Nov 23, 2010·Clinical Journal of the American Society of Nephrology : CJASN·Rajan K PatelAlan G Jardine
Mar 31, 2007·American Heart Journal·S Luke Kusmirek, Michael R Gold
Aug 21, 2008·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Ornella DurinGiuseppe Inama
Feb 1, 2008·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Giuseppe InamaDeodato Assanelli
Nov 1, 2008·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Euler de Vilhena Garcia
Sep 25, 2008·Pacing and Clinical Electrophysiology : PACE·Giuseppe GibelliMassimo Baravelli
Jul 5, 2005·Journal of the American College of Cardiology·Anil K GehiJ Anthony Gomes
Jan 18, 2006·Journal of the American College of Cardiology·Sanjiv M Narayan
Nov 12, 2013·Journal of Electrocardiology·Joel Xue, Ian Rowlandson
May 7, 2008·Critical Pathways in Cardiology·Ayman El-Menyar, Nidal Asaad
Dec 13, 2006·Journal of Applied Physiology·Sanjiv M NarayanCarl F Edman

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