BICUSPID AORTIC VALVES WITH AORTIC ROOT DILATATION
There is growing awareness that many patients with bicuspid aortic valves have disorders of vascular connective tissue, involving loss of elastic tissue, that may result in aortic root dilatation even in the absence of hemodynamically significant AS or AR (17,18). These patients have a risk of aortic dissection; surgery to repair the aorta has been recommended for those patients with greatly enlarged aortic roots (5,18).
Recommendations for athletic participation in patients with bicuspid valve disease and associated aortic root dilatation are based on limited data, but with the understanding that aortic dissection can occur in some patients with aortic root diameters less than 50 mm. The recommendations that follow are for patients with bicuspid valves and associated aortic root enlargement. If such patients also have significant AS or AR, these recommendations should be considered in concert with those discussed in the present Task Force for patients with AS or AR. The following recommendations do not pertain to patients with Marfan syndrome, which are discussed in Task Force 4.
Recommendations:
1. Patients with bicuspid aortic valves with no aortic root dilatation (less than 40 mm or the equivalent according to body surface area in children and adolescents) and no significant AS or AR may participate in all competitive sports.
2. Patients with bicuspid aortic valves and dilated aortic roots between 40 and 45 mm may participate in low and moderate static or low and moderate dynamic competitive sports (classes IA, IB, IIA, and IIB), but should avoid any sports in these categories that involve the potential for bodily collision or trauma.
3. Patients with bicuspid aortic valves and dilated aortic roots greater than 45 mm can participate in only low-intensity competitive sports (class IA).