Corrado et al. have published an ESC consensus document on the screening of<unk>  for competitive sports. Besides a good medical history and examination, a 12 lead<unk>  is also part of the screening. They have set up special<unk>  criteria for participants in competitive sports (table 1). If one of the described findings are present on the<unk> , the<unk>  is considered 'positive' and further evaluation is mandatory which can include echocardiography, 24-h ambulatory Holter monitoring, and exercise testing.<unk>  Features of cardiac diseases detectable at pre-participation screening in young competitive<unk>  are shown in table 2.       
Prevalence of<unk>  abnormalities in competitive<unk>  has been studied by Pellicia et al.(see table below).<unk>  abnormalities in their study increased with age and level of exercise. In young amateur<unk>  they found<unk>  abnormalities in about 7%, a number that rised to 40% in "adult elite<unk> ". Especially RBBB and left ventricular hypertrophy were often seen.
Recently fierce debate has been going on about whether an<unk>  should be part of the screening of apparently healthy young sporters. In Italy this screening is compulsory by law and this country is a strong advocate of the use of an<unk>  as part of this screening. However, others have stated that costs are too high for the yield (expressed in dollars per prevented sudden cardiac death) and an<unk>  is not included in the screening protocol of the American Heart Association.
EKG in athletes
Altitude sickness electrocardiogram
Cardiomyopathy electrocardiogram
Pulseless electrical activity electrocardiogram
Haff disease electrocardiogram
Palpitation echocardiography and ultrasound
Adams-Stokes syndrome electrocardiogram
Status asthmaticus electrocardiogram