Valvular Heart Disease Flashcards
what are the most common etiologies of VHD?
myxomatous degeneration (MVP) congenital (bicuspid aortic valve)
what causes a murmur?
turbulent blood flow across a valve or increased blood flow
what are the systolic murmurs (S1)?
MR TR AS PS VSD ASD
what are the diastolic murmurs (S2)?
AI/AR PI/PR MS TS atrial myxoma
1/6 murmur
barely audible
2/6 murmur
faint, soft
3/6 murmur
easily heard with a stethoscope
4/6 murmur
very loud with palpable thrill (vibration)
5/6 murmur
heard with stethoscope barely touching the chest with thrill
6/6 murmur
can hear without stethoscope or can hear with stethoscope close to chest
palpable thrill
what are the causes of MR?
ischemic papillary muscle dysfunction (CAD or MI) ruptured chordae tendinae infective endocarditis volume overload MVP
what is heard on auscultation with MR?
systolic murmur
blowing at apex
radiates to left axilla
what is heard on auscultation with MVP?
systolic murmur at apex with click/murmur increased with standing
what are the causes of TR?
pulm HTN lung disease RV infarction inferior wall MI pacemaker
what is heard on auscultation with TR?
blowing, systolic murmur at the 4th ICS LSB
increases with inspiration (Carvallo sign)