[Evaluation of the prognosis of XXXX ].

@entity1 @entity339 @entity944 @entity3454 @entity591 @entity74 @entity2661 @entity884
It is not easy to evaluate the prognosis of @entity3454 . First of all, a positive diagnosis is difficult: the clinical insufficiencies are ill-compensated by sonocardiography as it is less reliable than expected; the very existence of the " @entity3454 " described by Barlow is being challenged. Secondly, the most severe complications of mitral prolapse are rare, with respect to its frequency. Some complications are currently well defined. Thus, severe @entity339 , leading to valve replacement, affects elderly @entity1 more than young @entity1 , although the pathological lesions correspond to the same disease. @entity884 is rare and only occurs when there is an audible murmur. @entity74 are varied, with however, frequent junction @entity591 and a marked influence of @entity2661 , which may explain the clinical effectiveness of beta-blockers. Unfortunately, severe complications are not as well known. Thus, the risk of @entity944 and cerebral vascular accident cannot be figured out from large statistical studies. Only studies of some so called "risk" sub-groups, should allow a better knowledge of these two complications and a more effective prevention.
