NURS 203 Lecture Notes - Mitral Valve Stenosis, Heart Murmur, Rheumatic Fever
Document Summary
Prolapse means that something is coming out ie rectal prolapse. So, with mitral valve prolapse, it is extending into the left atrium. When it stops, and cannot go in anymore, it stops and causes a click, and it followed by a short mitral regurg murmur. So, it goes click murmur, click murmur (not snap murmur opening snaps occur in mitral and tricuspid stenosis). Dermatan sulfate, therefore its an excess of dermatan sulfate in the mitral valve, and it becomes redundant (too much of it), blood goes under it and causes a click and murmur. If we increased vol of blood in the left ventricle, then the click and murmur will come closer to s2 b/c it takes longer for all the events to get blood out. If we decrease the amount of blood coming into the left ventricle (decrease preload), the click and murmur come closer to s1.