Cardio: murmurs Flashcards
S3 gallop
dilated cardiomyopathy
harsh systolic murmur best heard at LSB
hypertrophic cardiomyopathy HOCM
hypertrophic cardiomyopathy (HOCM)
harsh systolic murmur best heard at LSB
Dilated cardiomyopathy
S3 gallop
similarities with aortic stenosis + HOCM
-differences?
- angina
- systolic murmur
- both murmurs go in the same direction with afterload maneuvers– both increase with Amyl nitrate and both decrease with handgrip
DIFFERENCES
- HOCM
- preload maneurvers that decrese LV volume (valsava, standing) will WORSEN the murmur—->these manuecers decrease intensity of aortic stenosis murmur
- increased volume (squatting, leg raise) will decrease the murmur of HOCM—-vs will increase intensity of AS
sitting up and leaning forward
accentuates Aortic murmurs
lying on the left side
accentuates mitral murmurs
increased venous return
inreases ALL murmurs/opening snap (left and right side)
EX of incr venous return=squatting, leg raise, lying down,
decreased venous return
*valsalva
*standing
*decreases all murmurs/opening snap (left and right)
EXCEPT: increase murmurs of HOCM and increased ejection click of MVP
Inspiration
increases venous return on the right side
inncreasesd all murmurs/opening snap on the RIGHT side only
decreased ejection click right side
**RIGHT SIDED MURMURS HEARD BEST WITH INSPIRATION
decreased venous return on the left side
*all murmurs/opening snap on the left side are decr
right sided murmurs heard best wth
inspiration
expiration
incrs venous return on the lft side
-incrs murmurs on left side—delyes ejection click on L side
decrs venous rreturn to the right sife
left sided murmurs heard best?
after maximal expiration
handgrip
increased afterload by compression the arteries of the upper extremityy–>leading to decreaed LV emptying
-decreased forward flow and increased backward flow
- **outflow murmurs (AS, HOCM, MVP) are decr with handgrip
- incr in afterload prevents blood from being ejected from ventriles–lessening the blood flowing through stenosed aortic valvue and less blood ejected in HOCM
**regurg murmurs (AR, MR) incr with handgrip due to backward flow
*MS increased due to incr afterload
what are the only two things that affect AS and HOCM
handgrip (decrs) and amyl nitrate (incrs)