(L4) Cardiac Sounds & Murmurs (Stewart) Flashcards
What is Erb’s point?
3rd ICS lateral to LSB
What does S2 mark end of?
Systole
S3 heart sound is listened to with the __ & occurs after __ during ___. It is __ pitched.
S3 heart sound is listened to with the bell occurs after S2 during diastole. It is low pitched.
What is a systolic murmur?
- occurs during ventricular systole
What is diastolic murmur?
Occurs during atrial systole
KNOW
S1 occurs between
Closing of mitral valve to opening of aortic valve
As Left vent pressure drops, it is the physiological cause for _____.
(know)
aortic valve closure
Describe a continuos murmur
- Begins in systole and extends into all or part of diastole
Position for listening for a aortic regurgitation?
Patient leans forward
Position for detecting mitral stenosis?
- Left lateral decubitus
What is being heard in an aortic stenosis?
Disrupted forward flow through stenotic A valve
What is being heard in a pulmonic stenosis?
Disrupted foward flow through stenoitc P valve
What is being heard with Tricuspid regurgitation?
- Backflow through semi closed T valve
What is being heard with Mitral regurgitation
backflow through a semi closed M valve
Describe tricuspid and mitral stenosis?
They are ventricular diastolic murmurs
- Triscupid stenosis is disrupted forward flow through T valve
- Mitral is disrupted forward flow through M valve
Describe pulmonic and aortic regurgitations.
- Ventricular diastolic murmurs
- Backflow against semi closed P valve
- Backflow against semi closed A valve
- Aortic stenosis- Old valves are SAD. What is SAD?
- Syncopal
- Angina
- Dyspnea
Calcified aortic valve, crescendo-decrescendo, radiates UP to the carotids
Aortic regurgitation, how to remember? What is it assoc with?
- ARR there she BLOWS
- Early blowing diastolic murmur
- associated with:
- CT disorders
- Marfan’s syndrome
- Head bobbing
- Water hammer pulse
- Femoral bruits
what type of murmur is triscupid regurgitation? Associated with?
Holosystolic
- assoc with hx of IV drug abuse
- its the murmur you get if you want to TRI drugs
78 yo male in ED presents with SOA and chest pain on exertion for past three months. On PE you hear II/VI systolic ejection murmur over the apical area of the heart. Where would the valvular pathology be located?
- Mitral valve stenosis
Mitral stenosis, way to remember and assoc with?
- The Operating System is MicroSoft
- There is an opening snap
- Associated with hisotry of rheumatic fever
What is mitral valve prolapse?
- Midsystolic click
- Clinical presentation of young woman with psychiatric hx
- Can be due to Myxomatous valvular pathology in stem question
- See the MVPand everything willClick.
Mitral regurgitation? POSSIBLE TEST QUESTION
- Rheumatic heart disesase assoc with this
- Described as holocystolic plateau murmur
- Best heard at apex radiating to axilla
- S1 diminished
- Loud and blowing
In most cases as preload increases the murmur will get ____.
In most cases as preload increases the murmur will get louder.
In most cases as preload decreases the murmur will get ___.
In most cases as preload decreases the murmur will get softer
During inspiration what happens to right heart sounds?
Right sideed murmur will get louder (T &P)
With expiration what happens to murmurs on left heart?
Louder M& A
Hypertropic obstrutive cardiomyopathy difference in increasing and decreasing preload?
- Increase in preload decreases an aortic murmur by pushing the septum away from the aortic outflow tract allowing blood to be easier ejected
- Decrease in preload causes increasing aortic murmur due to less blood to push outflow track open obstructing and disrupting blood flow
How does MVP change preload?
- Leaflets of MV prolapse into left atria under normal pressure and cause disruption of blood flow
- Increase in preload improves the midsystolic click heard by allowing the prolapsed leaflets to return to normal orientation
Fhx of HOCM? Specific maneuvers to ID it?
- Sudden cardiac death at young age
- Louder with decreased preload & afterload
- Softer with increased preload and afterload
How does afterlaod impact murmurs?
- Increased afterload the murmur gets louder
- Decreased afterload the murmur gets softer
In MVP and HOCM how does afterlaod impact the murmur?
- Increased afterlaod = soft
- Decreased afterlaod = louder