Bispectral index monitoring (BIS) was applied to 57 intubated patients transported by a Helcopter Emergency Medical Service (HEMS), demonstrating (1) that the patients were adequately sedated, (2) BIS works in helicopters, and (3) there is enormous scope for publishing work related to the retrieval environment – anything is of interest!

Bispectral index monitoring in helicopter emergency medical services patients
Prehosp Emerg Care. 2009 Apr-Jun;13(2):193-7