Constriction/Restriction Flashcards
1
Q
Constriction MV/TV
? Positive respiratory variation?
A
Yes. No respiratory variation with restriction. 
2
Q
hepatic vein PW Doppler.
(Constriction)
A
Reverse hepatic vein Doppler in expiration.
3
Q
hepatic vein PW Doppler.
(Restriction)
A
Reverse hepatic vein Doppler inspiration 
4
Q
What is annulus reversus? 
A
Medial e’ >lateral e’
Seen with constriction.
5
Q
Compare lateral e’ with medial e’ velocity
(Tissue Doppler)
A
Normal and restriction
lateral > medial 
6
Q
What kind of respiratory variation? (what percentage) is seen with restriction?
A
No respiratory variation seen 
7
Q
Doppler values:
E/A & E/e’ with constriction.
A
E/A >1.5
E/e’ <15
8
Q
Doppler values
E/A E/e’ RESTRICTION
A
E/A >2
E/e’ >15
