Flashcards
Aortic Regurgitation
Flashcards do conjunto (33)
- 1what is ARbackflow of blood through the aorta in diastole
- 2what does chronic mean?persisting over a long period of time
- 3what does acute meanshort, severe course
ex. tear a cusp - 4what are some AR etiologiesinflammation, structural changes, stress
- 5what is inflammatory etiology?reaction of tissue to injury, infection, or irriation
Ex. pheumatic, phen phen, syphilis, lupus - 6what are some structural changes that can occur?senile calcific disease, dilation -Ao dissection, endocarditis, trauma, bicuspid valve
- 7What are some other problems that can be caused by stress etiologyhypertension, aortic aneurysm and or dissection, atherosclerosis
- 8what are some complications of ARLV volume overload
Increased risk of infective endocarditis
Decrease LV function(systolic) late in course
Jet around 4m/s
Circular heart poor function - 9what are some secondary changes with ARchronic AR=progressive volume overload of the LV
see greater that normal EF
Mod AR expect Frank Starling
^ preload ^contraction
Prognosis related to EF - 10Murmur that is heard with ARAustin Flint
- 11Symptoms of ARAustin Flint Murmur
Wide pulse pressure
DOE - 12what is a wide pulse pressure?diastolic BP less than normal
Systolic BP greater than normal - 13Is the austin flint murmur a diastolic or systolic event?diastolic murmur
- 14What would you use to diagnose ARDoppler and Color Doppler are sensitive tools to detect AR
- 15What would an AR pressure waveform look like?Increased diastolic LV pressure
- 16What is one way to evaluate ARCW Doppler signal intensity
more RBC, more dense the spectral envelope - 17What does the slope diastolic decay indicate?Pressure is equalizing rapidly during diastole
- 18AR peak velocity is around___m/s4
- 19How can if tell if AR is severe on M-modeearly diastolic closure of the MV
No A wave! - 20What will you find on M-mode with ARDiastolic flutter of the AMVL
- 21Where do you place the PW for SV calculation?Put PW Doppler in the same area diameter was measured for accuracy
- 22what does ERO stand forEffective Regugitant Orifice
- 23what does ROA stand forRegurgitant Orifice Area
- 24What are the 3 components of an AR jet?Flow convergence
Vena contracta
Jet direction and size - 25what is the vena contractasmallest neck at the level of the aortic valve
approximation of EROA
>0.6 cm SEVERE - 26P1/2 time is affected by increased____LVEDP
- 27How do you assess AR by DopplerCW Doppler
Density of signal reflects RV
Spectral slope
Pressure half time
ERO - 28what is a tip in evaluating descending aortic flowuse highest frequency transducer
optimize color - 29TRUE or False holodiastolic reversal of flow in the descending Ao indicates severe aortic regurgitationTRUE
- 30What type of Doppler do you use in the Descending AoPW Doppler
- 31True or False Is it normal to see red flow in the descending Ao during diastoleFALSE
- 32True or false Significant flow reversal in the descending Ao that is absent in the abdominal Ao, indicates that the AR is moderate but not severe.TRUE
- 33True or False Flow reversal in both the descending and abdominal Ao indicates severe ARTRUE
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- FlashCards sobre Aortic Regurgitation, criado por rach_rm em 19-07-2013.
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