Heart murmurs Flashcards
inspiration
increase intensity of right heart sound
expiration
increase intensity of left heart sound
hand grip
increase systemic vascular resistance
increase intensity of MR, AR, VSD, MVP murmurs
decrease intensity of AS, hypertrophic cardiomyopathy murmurs
valsalva
decrease venous return
increase intensity of MVP, hypertrophic cardiomyopathy
decrease intensity of most murmurs
rapid squatting (increase venous return, increase preload, increase afterload with prolonged squatting)
decrease intensity of MVP, hypertrophic cardiomyopathy
systolic heart sounds
aortic stenosis pulmonic stenosis mitral regurgitation tricuspid regurgitation VSD
Diastolic heart sounds
aortic regurgitation
pulmonic regurgitation
mitral stenosis
tricuspid stenosis
holosystolic, high-pitched “blowing murmur”
Mitral/ trisucpid regurgitation
mitral regurgitation is loudest at the ______
apex
MR is enhanced by ____ , _____ and ______
squatting
hand grip
expiration
often due to ischemic heart disease, mitral valve prolapse, LV dilation, infective endocarditis, rheumatic fever
TR is loudest at the _____
tricuspid area and radiates to right sternal border
TR is enhanced by ______
inspiration
can be caused by RV dilation, rheumatic fever, infective endocarditis
crescendo-decrescendo systolic ejection murmur following ejection click
Aortic stenosis
ejection click due to abrupt halting of valve leaflets… LV»_space; aortic pressure during systole
AS is best heart at _____
aortic area
often due to age-related calcific aortic stenosis or bicuspid aortic valve
pulses weak with a delayed peak
pulsus parvus et tardus
- seen in AS
holosystolic, harsh-sounding murmur
VSD
VSD is best heard at ____
-murmur accentuated by _____
tricuspid area
accentuated by hand grip maneuver (increases systemic vascular resistance)
late systolic crescendo murmur with mid systolic click
MVP
-due to sudden tensing of the chord tendinae
MVP is best heard at _____
-MVP is enhanced by _____ or ____
over apex
enhanced by standing or valsalva (decrease venous return)
can predispose to infective endocarditis
can be caused by myxomatous degeneration, rheumatic fever, or chord tendinae
MVP is loudest at which heart sound?
S2
immediate high pitched “blowing” diastolic decrescendo murmur
AR
often due to aortic root dilation, bicuspid aortic valve, endocarditis, or rheumatic fever
wide pulse pressure when chronic
can present with bounding pulses and head bobbing
AR
AR is best heart at _____
increase murmur via ____
decrease murmur via _____
left sternal border
increase: hand grip
decrease: vasodilators
follows an opening snap
delayed rumbling late diastolic murmur
MS
LA» LV pressure during diastole
MS is heard best at _____
enhanced by ___ (vague answer)
mitral area
enhanced by increased LA return (ex: expiration)
often secondary to rheumatic fever
continuous machine-like murmur
PDA
often due to congenital rubella or prematurity
PDA is best heard at which heart sound?
S2
PDA is best heard at which area?
left infraclavicular area