Criley et al. originally coined the term "mitral valve prolapse" to describe posterior mitral leaflet motion during systole (1).
Mitral valve prolapse is a common condition which may be asymptomatic or may be associated with atypical chest pain, syncope, palpitations, and embolic phenomena.
On auscultation there may be a mid-systolic click and late systolic murmur.
- Criley et al. (1966). Prolapse of the mitral valve:clinical and angiographic findings. Br. Heart J., 28, 488-496.