Joint mobility and mitral valve prolapse in an Arab population.

The association of joint laxity and mitral valve prolapse (MVP) has been disputed. In this study of an Arab population, the joint mobility scores of 29 subjects with MVP, 10 of whom were asymptomatic, were compared to 60 normal controls. It was found that the joint mobility score was significantly higher in both the asymptomatic and the symptomatic subjects with MVP when compared to the controls. This suggests that both mitral valve prolapse and joint laxity may be due to the same abnormality of connective tissue structure.