Heart Murmurs Flashcards
What is Mitral Stenosis?
Narrowing of the mitral valve between the left atrium and ventricles preventing blood flow
When and where is mitral stenosis heard upon auscultation?
Apex beat- left 5th ICS MCL during expiration
What part of the cardiac cycle does mitral stenosis occur?
mid-diastolic
Characteristic of mitral stenosis murmur?
Low-pitched mid-diastolic murmur with an opening click
What is mitral regurgitation?
Mitral valve doesn’t close properly causing backflow into the left atrium
When and where is mitral regurgitation heard?
Apex beat- left 5th ICS MCL during expiration
murmur radiates to the axilla
What part of the cardiac cycle does mitral regurgitation occur?
pan-systolic
Characteristic of mitral regurgitation murmur?
High-pitched whistling murmur
what can mitral regurgitation lead to
congestive heart failure due to reduced ejection fraction and a backflow of blood that is waiting to be ejected out from the left side of the heart
What is mitral valve prolapse and what can it cause?
Floppy mitral valve can cause mitral regurgitation
When and where is mitral valve proplase heard?
Apex beat- left 5th ICS MCL during expiration
What part of the cardiac cycle does mitral valve prolapse occur?
mid systolic
Characteristic of MVP?
midsystolic click
What is Tricuspid Stenosis?
Narrowing of the tricuspid valve between the right atrium and ventricles preventing blood flow
When and where is tricuspid stenosis heard?
During inspiration 3rd/4th ICS right sternal edge
What part of the cardiac cycle is tricuspid stenosis heard?
Mid-diastolic
What does mitral stenosis lead to?
Left ventricular hypertrophy
what does tricuspid stenosis lead to?
Right atrial hypertrophy