Read on Twitter
Good 10 min talk discussing the passive leg raise to assess FR
https://www.isicem.org/e-chat/Video_PresChat.asp?Num=7
less reliable than PPV but wider applicability
start semi-recumbent (to mobilise splanchic blood)
use bed to raise legs to 
sympathetic response
1/4
https://www.isicem.org/e-chat/Video_PresChat.asp?Num=7
less reliable than PPV but wider applicability start semi-recumbent (to mobilise splanchic blood)use bed to raise legs to sympathetic response 1/4
𝐁𝐔𝐓 test only as reliable as your ability to monitor change in CO
BP is a poor surrogate marker
EtCO2 can be simplest measure (if ventilation stable)
SpO2 amplitude 𝒎𝒂𝒚 help
VTI good if you can
2/4
BP is a poor surrogate markerEtCO2 can be simplest measure (if ventilation stable)SpO2 amplitude 𝒎𝒂𝒚 helpVTI good if you can 2/4
In day to day practice I rarely see people attempt to assess FR (either pre or post fluid challenge) and think it’s the difficultly of accurately assessing change in CO that is the limiting factor.
Applying Baye’s theorem I suspect the pre-test probability that...
3/4 https://twitter.com/msiuba/status/1180583048200388608
Applying Baye’s theorem I suspect the pre-test probability that...
3/4 https://twitter.com/msiuba/status/1180583048200388608
most patients on our ICUs will be fluid responders is so low, that a lot of these assessments (especially in hands like mine) are likely to add more noise than signal. Hard to know what to make of it 
Are most people really assessing FR after every bolus, and if so how?
4/4
Are most people really assessing FR after every bolus, and if so how?
4/4
