Prolapse

v. fall out of place, slip out of the correct position (Medicine); move out of position, slip out of place

n. instance of falling out of place, instance of sinking out of the correct position (Medicine)

This article is about prolapse, the medical condition. There is another article on the British musical group Prolapse.Prolapse literally means "To fall out of place." In medicine, prolapse is a condition where organs, such as the uterus, fall down or slip out of place. It is used for organs protruding through the vagina, rectum, or for the misalignment of the valves of the heart. A spinal disc herniation is also sometimes called disc prolapse.
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n. prolapse, instance of falling out of place, instance of sinking out of the correct position (Medicine)

(v. i.)
To fall down or out; to protrude.
  

(n.)
The falling down of a part through the orifice with which it is naturally connected, especially of the uterus or the rectum.
  

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(Mitral valve prolapse)
It is due to excessively large mitral valve leaflts,an enlarged mitral annulus,abnormally large chordae or distorted papillary muscle contraction.During ventricular systole,a mitral valve leaflet (most commonly the posterior leaflet) prolapes into the left atrium.This may results in abnormal vetricular contraction,papillary muscle strain and some mitral regurgitation.Usually the syndrome is not haemodynamically serious.Thromboembolism may occur.
Symptoms
*Atypical chest pain is the most common symptom. Usually the pain is left submammary and stabbing.Sometimes it is substernal aching and sever.Rarely it is similar to typical angina pectoris
*Palpitation may be experienced because of abnormal ventricular contraction or because of atrial and ventricular arrhythmias.
Signs
Mid systolic click
Late systolic murmur.