{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,11,14]],"date-time":"2023-11-14T03:10:39Z","timestamp":1699931439057},"reference-count":18,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2009,5,19]],"date-time":"2009-05-19T00:00:00Z","timestamp":1242691200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Cardiology"],"published-print":{"date-parts":[[2009,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Mitral valve prolapse (MVP) is the most common primary valvular abnormality in a young population. In some individuals, MVP is silent or associated with palpitations, dizziness, chest pain, and abnormal electrocardiogram (ECG) repolarization with or without ventricular arrhythmias.<\/jats:p><\/jats:sec><jats:sec><jats:title>Hypothesis<\/jats:title><jats:p>The aim of the present study was to assess the occurrence of the clinical and electrocardiographic abnormalities in young athletes with silent MVP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A group of 10 children, who have been sport training intensively, with preparticipation silent MVP were examined for symptoms and\/or ECG abnormalities. The diagnosis of MVP was made by echocardiography.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Three athletes were asymptomatic at initial presentation. The other 7 athletes presented with symptoms. The QTc intervals &gt; 440 msec were recorded in 2 athletes (1 with syncope). Abnormal ECG repolarization was found in 7 athletes (4 athletes were symptomatic and 3 were asymptomatic). A large variety of T\u2010waves was registered in athletes who presented with symptoms. In asymptomatic athletes, the tall and flat T\u2010waves were recorded.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Young athletes with MVP are often predisposed to electrocardiographic abnormalities of ventricular repolarization, which requires annual cardiologic evaluation. Copyright \u00a9 2009 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/clc.20398","type":"journal-article","created":{"date-parts":[[2009,5,19]],"date-time":"2009-05-19T19:18:42Z","timestamp":1242760722000},"source":"Crossref","is-referenced-by-count":4,"title":["Electrocardiographic Abnormalities in Young Athletes with Mitral Valve 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