I know they place TEE for most of our livers without them bleeding to death from exploded varices.
This is the data for TEE placement complications vs utility at Mayo. Apparently performed in 12% of their liver transplants from 2003-2013. 1/232 had an acute variceal bleed with blood noted in the mouth during probe placement which required intraop banding. I personally still wouldn’t do it routinely and would think hard before doing it emergently depending on preop variceal history.
Causing a complication requiring emergent consult and intervention is not a small consideration.