237 valvular Heart Disease Flashcards
(59 cards)
Earliest xray changes in MS
- straightening of upper left border of cardiac silhouette
- prominence of main pulmo arteries
- dilation of upper lobe pulmonary veins
- posterior displacement of esophagus by enlarged LA
Resting mean pressure of LA when kerley b lines are present
20 mmHg
Cause of kerley b lines
Distention of interlibular septae and lymphatics with edema
Where kerley B lines are most prominent
Lower and mid-lung fields
Normal mitral valve area
4-6 cm
Hemodynamic hallmark of MS
Elevated left AV pressure gradient
Murmur louder during inspiration and diminished during forced expiration
Carvallo's sign in Tricuspid regurgitation (pulmo HTN)
In Ms, the left atrial pressure required to maintain a normal cardiac output
25 mmHg
High pitched diastolic decrescendo blowing murmur along the left sternal border
Graham steell murmur of PR
Mitral valve disease and severe pulmonary hypertension murmur: resulting from dilation of pulmonary valve ring
Graham steell murmur of PR
Diff PR from AR
PR has a palpable p2 and nay increase with inspiration
Murmur softer with administration of amyl nitrite
Austin flint murmur
In severe AR
MR may result from abnormality in 5 functional components of mitral calve apparatus
Leaflets Annulus Chordae tendinae Papillary muscles Subsequent myocardium
Papillary muscle involved in acute MI, rupture of which results to MR
Posteromedial papillary muscle
Bec of singular blood supply
Target inR MR
2-3
ECG in MVP
Commonly normal,
Biphasic or inverted T waves in II, III, aVF
Duration of mVP midsystolic click
0.14 s
Barlow’s syndrome
Billowibg mitral leaflet syndrome
Mvp
Common age MvP
15-30 yrs
MC etiology of AS in adults
Degenerative calcification of aortic cusps
MC congenital heart valve defect
Bicuspid aortic valve
Mech dyspnea in AS
Elevated pulmo capillary pressure caused by elevations of LV diastolic pressures sec to reduced LV compliance
Three cardinal symptoms of aortic stenosis
- Dyspnea
- Angina pectoris
- Exertional syncope
When murmur of AS is transmitted downward to the apex where it can be confused with systolic murmur of MR
Gallavardin effect