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Vol. 55. Issue 10.
Pages 1105-1106 (October 2002)
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Araceli Boraita Péreza
a Servicio de Cardiología del Centro de Medicina del Deporte. Consejo Superior de Deportes. Madrid. España.
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To the Editor:

I would like to thank Drs. Barriales Vila, Moris de la Tassa, and Penas Lado for the interest that they have shown in my editorial published in your journal.1 I am grateful for their interesting comments, although I do not agree with some of their thoughts about the purpose of athletic pre-participation cardiological examinations (APCE).

APCEs should be carried out for the early detection of cardiac pathologies that constitute a risk of sudden death in athletes. Therefore, the susceptible population is very large, since more than 12 million Spaniards practice either federation or recreational sports. This means that the diagnostic tests included in this examination should be sensitive and specific, as well as simple and inexpensive. The APCE meets almost all the necessary requirements for being considered of public interest, but is still not accepted or recognized by health authorities in most countries, or even by most sports federations.2 In fact, in many countries in the world, as in Spain, a physical examination is require only in certain high-risk sports and activities like boxing, hunting, diving, speed-boating, or motorcycling. This absence of acceptance is due mainly to economic arguments of cost-effectiveness. The cost of such examinations is not accepted by either National Health Services or individual athletes.

On the other hand, the causes of sudden death vary widely with the age of the athlete.3 In young athletes (<30 years), a group that includes most high performance athletes in Spain according to the study by Suárez-Mier and Aguilera,4 arrhythmogenic cardiomyopathy of the right ventricle constitutes about one-fourth of all causes. In contrast with other published series, hypertrophic cardiomyopathy and anomalies of the coronary arteries (2 cases) show a low prevalence. As the authors themselves note, this was probably because the organs studied were from judicial autopsies in which forensic pathologists had previously diagnosed these pathologies. Likewise, it should not be overlooked that the low incidence of coronary anomalies could also be due in part to the effectiveness of the APCE in Spain, even if the examination could be much better.

For these reasons, the Working Group on Sports Cardiology proposes a simple screening protocol suitable for use in the entire population and capable of identifying or indicating the possible presence of a high risk cardiac pathology.5 In fact, the advanced cardiological examination of young competitive athletes includes, in addition to a maximum exercise stress test, transthoracic Doppler echocardiogram for the identification of possible anomalies in the origin of the coronary arteries and hypertrophic cardiomyopathies that have not been diagnosed because they course with an atypical or even a normal ECG. Unfortunately, arrhythmogenic cardiomyopathy may remain undetected even by experts with these examinations. In my personal experience of cardiological examinations of the Spanish population of high performance athletes, including more than 5000 athletes throughout four olympic cycles, the ostia and initial sections of both coronary arteries were clearly identified in all of them. On the other hand, no coronary anomaly was suspected in any of the athletes excluded. In contrast, in the case of hypertrophic or arrhythmogenic cardiomyopathy examinations had to be complemented by other studies, including invasive studies, when the results were dubious. In fact, in the only two cases of sudden death that occurred in this population, the causes of death were exercise-induced anaphylaxis and biventricular diffuse, patchy subepicardial arrhythmogenic cardiomyopathy.

One might think that this population is highly selected and that it is not very likely that an athlete with a coronary anomaly would reach highly competitive circles since these sports are extremely demanding and coronary malformations would limit athletic performance. However, I would like to emphasize that, while this is true, there are athletes involved in sports with a moderate or high cardiovascular demand, which include 34 athletic specialties. Some of these specialties have a low static and dynamic component and, therefore, a low cardiovascular demand, which is why an athlete with these coronary anomalies could reach the highest circles of competition.

Undoubtedly, in the case of athlete in which there is a well-founded suspicion of the presence of a coronary anomaly, other diagnostic tests should be made before authorizing participation in competitive sports. Such tests might include transesophageal echocardiography, helical computed tomography with intravenous contrast, or vascular magnetic resonance imaging. The situation changes when considering whether these techniques should be included in the cardiological examination of high performance athletes or in the APCE screening for sports or demanding recreational activities.

I hope that in the not too distant future, thanks to the work of authors like Suárez-Mier and Aguilera and the efforts of the Spanish Society of Cardiology and the Spanish Federation of Sports Medicine, advanced APCE including an echocardiogram will not be limited to high performance athletes, but extended to the entire population of young people who practice organized sports or demanding recreational activities.

Bibliography
[1]
Boraita A..
Muerte súbita y deporte..
??Hay alguna manera de prevenirla en los deportistas? Rev Esp Cardiol, 55 (2002), pp. 333-6
[2]
MacAuley D..
Does preseason screening for cardiac disease really work?: the British perspective..
Med Sci Sports Exerc, 30 (1998), pp. S345-S50
[3]
Boraita A, Serratosa L..
Muerte súbita en el deportista. Requerimientos mínimos antes de realizar deporte de competición..
Rev Esp Cardiol, 52 (1999), pp. 1139-45
[4]
Suárez-Mier MP, Aguilera B..
Causas de muerte súbita asociada al deporte en España..
Rev Esp Cardiol, 55 (2002), pp. 347-58
[5]
Boraita Pérez A, Baño Rodrigo A, Berrazueta Fernández JR, Lamiel Alcaine R, Luengo Fernández E, Manonelles Marqueta P, et al..
Guías de práctica clínica de la Sociedad Española de Cardiología sobre la actividad física en el cardiópata..
Rev Esp Cardiol, 53 (2000), pp. 684-726
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Revista Española de Cardiología (English Edition)

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