Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
How do we evaluate systolic function of the heart on echo
most common |
EF most common systolic function
|
|
|
4 Categories for Systolic Function
|
Chamber size
valve function Flow pattern IVS movement |
|
|
Chamber Size
|
2D look at chamber size small/big
change in cardiac cycle condition of myocardium related to valves/any disease |
|
|
LA size
|
increase with age
increase with pathology |
|
|
LV size
|
greater than 5.5cm in systole indicative of poor prognosis
|
|
|
RV size
|
tends to change size more rapidly than LV
|
|
|
Valve Function: MV
|
MV- pressure half time- evaluate MS
MV movement -reflects lv filling patterns |
|
|
AO valve
|
2D
M-mode Doppler size of AO root can be dilated aneurysmal |
|
|
What is Flow pattern
|
diastolic filling
systolic ejection |
|
|
what do flow patterns depend on
|
condition of valves
condition of myocardium |
|
|
IVS movement
|
moves in systole and diastole
divides LV and RV REally acts as a wall LV- reflects whats going on in LV more than RV |
|
|
Dimensions and area
|
m-mode
measure 2-D disc method/simpson rule |
|
|
Global systolic function
|
overall pumping heart
overal Effectiveness LV |
|
|
3 Global systolic functions
|
FS -shortening of LV
EF- normal 55-77% CO=SV * HR |
|
|
CO
|
amount of blood ejection from heart per min
|
|
|
SV
|
amount of blood ejection from heart per beat
SV achieve using doppler equation |
|
|
Regional Systolic function
|
How does each piece of LV contract
Specific area of wall LV divid wall 16 segaments WMSI |
|
|
WMSI
|
1. Normal
2. Hypokinesis 3. Akinesis 4. dyskinesis 5. aneurysmal |
|
|
LV evaluate qualitative
|
Good endocardial border definition
needs to see endocardium where starts and ends |
|
|
Systolic dysfunction - EPSS will
|
increase
|
|
|
LV enlarge - MV
|
reduce motion
|
|
|
AO root not rocking based on
|
LV filling and emptying
bc Low CO |
|
|
Normal range FS
|
25%-45%
|
|
|
Enlarged LA - can developed
|
LA thrombosis or thrombosis appendage
|
|
|
Paradoxical septal motion
|
when moving opposite direction
|
|
|
RV dilatation
|
TR, PI
|
|
|
PHTN
|
occurs in response chronic LT sided disease
1. MS 2. MR 3. COM 4. IHD- ischemic heart disease |
|
|
TR jet 3m/s above =
|
Pulmonary HTN
|
|
|
Velocity represents difference in pressure between
|
RV-RA
|
|
|
Pulmonary in systole =
|
4v2 + RA pressure
|
