| Significancia clínica de las arritmias ventriculares durante una prueba de ejercicio en atletas competitivos y no competitivos |
The clinical significance of ventricular arrhythmias during an exercise test in non-competitive and competitive athletes.
Fuchs T, Torjman A, Galitzkaya L, Leitman M, Pilz-Burstein R.
Arrhythmia Service, Assaf Harofeh Medical Center, Zerifin, affiliated with Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel.therese@fuchs.org
Isr Med Assoc J. 2011 Dec;13(12):735-9.
Abstract
BACKGROUND: Sudden death in athletes can occur during sport activities and is presumably related to ventricular arrhythmias. There are no guidelines concerning athletes who develop ventricular arrhythmias during an exercise test. It is unclear whether they should be allowed to continue with their competitive activity or not. OBJECTIVES: To investigate the long-term follow-up of athletes with ventricular arrhythmias during an exercise test. METHODS: From a database of 56,462 athletes we identified 192 athletes, less than 35 years old, who had ventricular arrhythmias during an exercise test. Ninety athletes had > or = 3 ventricular premature beats (group A) and 102 athletes had ventricular couplets or non-sustained ventricular tachycardia during an exercise test (group B). A control group of 92 athletes without ventricular arrhythmias was randomly selected from the database (group C). RESULTS: All athletes, except one who died from a dilated cardiomyopathy, were alive during a follow-up period of 70 +/- 25 months. An abnormal echocardiogram was obtained in seven athletes from group A (10%), four from group B (5%), and one from group C (3%) (not significant). An abnormal echocardiogram was more likely to be present in competitive athletes (P = 0.001) and in female athletes (P = 0.01).
CONCLUSIONS: Our results showed that ventricular arrhythmias during exercise are more commonly associated with cardiovascular abnormalities in young competitive athletes and in female athletes. When present, they necessitate a thorough investigation and follow-up.
http://www.ima.org.il/imaj/ar11Dec-04.pdf
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| El aumento de variabilidad a corto plazo del intervalo QT en jugadores profesionales de fútbol: posibles implicaciones para la predicción de la arritmia. |
Increased short-term variability of the QT interval in professional soccer players: possible implications for arrhythmia prediction.
Lengyel C, Orosz A, Hegyi P, Komka Z, Udvardy A, Bosnyák E, Trájer E, Pavlik G, Tóth M, Wittmann T, Papp JG, Varró A, Baczkó I.
1st Department of Internal Medicine, Faculty of Medicine, University of Szeged, Szeged, Hungary.
PLoS One. 2011 Apr 15;6(4):e18751.
Abstract
BACKGROUND: Sudden cardiac death in competitive athletes is rare but it is significantly more frequent than in the normal population. The exact cause is seldom established and is mostly attributed to ventricular fibrillation. Myocardial hypertrophy and slow heart rate, both characteristic changes in top athletes in response to physical conditioning, could be associated with increased propensity for ventricular arrhythmias. We investigated conventional ECG parameters and temporal short-term beat-to-beat variability of repolarization (STV(QT)), a presumptive novel parameter for arrhythmia prediction, in professional soccer players...........
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3078143/pdf/pone.0018751.pdf
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| Valoración de arritmias cardiacas entre los atletas |
Evaluation of cardiac arrhythmia among athletes.
Walker J, Calkins H, Nazarian S.
Department of Biology, Johns Hopkins University, Baltimore, MD 21287, USA.
Am J Med. 2010 Dec;123(12):1075-81. Epub 2010 Oct 1.
Abstract
Due to the growing awareness of exercise-related arrhythmias and improved sensitivity of diagnostic modalities, physicians are increasingly faced with choices that may have life-changing impact for the athlete. This article surveys recent research and expert opinion addressing benign and pathogenic cardiac changes underlying arrhythmias in athletes
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3010317/pdf/nihms210020.pdf
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