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In any competitive sports.PROSTHETIC HEART VALVES Several general comments apply to all patients who have undergone valve replacement. First, although most patients improve after valve replacement and many become asymptomatic, the long-term mortality after operation is greater than that of a normal population of similar age. Second, a transvalvular gradient of varying severity is present in most patients after valve replacement (5,19). Third, although hemodynamic variables at rest may be essentially normal after valve replacement, many patients have an abnormal response to exercise (20). Finally, after valve replacement (with few exceptions) patients with mechanical prostheses require anticoagulant agents, and those with bioprosthetic valves in sinus rhythm usually do not. In assessing the athlete’s capacity for physical activity, exercise stress testing to at least the level of activity performed in the competitive sport is valuable. 1338 Bonow et al. JACC Vol. 45, No. 8, 2005 Task Force 3: Valvular Heart Disease April 19, 2005:1334–40 Effects of exercise.There are insufficient data to determine whether vigorous repetitive exercise after valve replacement has any long-lasting effect on ventricular or prosthetic valve function. The patient should be made aware of these deficiencies in our knowledge before deciding whether to participate in competitive athletics. Because mechanical and most tissue valves have reduced effective valve areas, they perform best at normal heart rates. Therefore, a sustained heart rate greater than 120 beats/min might result in elevated valve gradients and cardiac outputs that are less than normally expected. Recommendations: 1. Athletes with a bioprosthetic mitral valve not taking Anticoagulant agents and who have normal valvular Function and normal or near-normal LV function can Participate in low and moderate static and low and Moderate dynamic competitive sports (classes IA, IB, IIA, and IIB). 2. Athletes with a mechanical or bioprosthetic aortic valve, with normal valve function and with normal LV function, can engage in low and moderate static And low and moderate dynamic competitive sports (classes IA, IB, and IIA). Athletes participating in Greater than low-intensity competitive sports (class IA) should undergo exercise testing to at least the Level of activity achieved in competition to evaluate Exercise tolerance and symptomatic and hemodynamic Responses. Independent of other considerations, athletes with a mechanical or bioprosthetic mitral valve or aortic valve who are taking anticoagulant agents should not Engage in sports involving the risk of bodily contact (see Task Force 8: Classification of Sports) or the Danger of trauma. VALVE REPAIR OR PERCUTANEOUS MITRAL BALLOON VALVOTOMY Several general comments apply to athletes who have undergone valve repair or percutaneous mitral balloon mitral valvotomy (PMBV). The benefits of surgical mitral valve repair for MR appear to persist long term, but the effects of strenuous exercise on repaired mitral valves have not been studied systematically. After treatment for MS with PMBV or either closed or open surgical mitral commissurotomy, the patient should have no disability if there has been no injury to the left ventricle or development of significant MR. After aortic valvuloplasty in young patients with congenital AS, there is the risk of subsequent endocarditis, AR, or recurrent AS. Athletes should be evaluated for competitive sports on the basis of their residual hemodynamic state. Recommendations: Date: 2016-03-03; view: 876
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