Mitral valve prolapse - associations and features

Mitral valve prolapse is common, occurring in around 5-10 % of the population. It is usually idiopathic but may be associated with a wide variety of cardiovascular disease and other conditions.



Associations
  • congenital heart disease: PDA, ASD 
  • cardiomyopathy 
  • Turner's syndrome 
  • Marfan's syndrome, Fragile X 
  • osteogenesis imperfecta 
  • pseudoxanthoma elasticum 
  • Wolff-Parkinson White syndrome 
  • long-QT syndrome 
  • Ehlers-Danlos Syndrome
  • polycystic kidney disease 
Features
  • patients may complain of atypical chest pain or palpitations 
  • mid-systolic click (occurs later if patient squatting) 
  • late systolic murmur (longer if patient standing) 
  • complications: mitral regurgitation, arrhythmias (including long QT), emboli, sudden death
Whilst some patients with acromegaly have mitral valve prolapse (MVP) it is not a common association. It should be remembered that the prevalence of MVP in a standard population is around 5-10%

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