In our facility, we place them posterior. This is where I have a few questions. We also turn them on and off instead of leaving them to work. My understanding is that they will help to regulate the core temp. According to an article on Cardiosource at
"We conclude that active cooling should be avoided in unsedated patients with moderate fever, because it does not reduce core temperature but does increase metabolic rate, activate the autonomic nervous system, and provoke thermal discomfort."
I can see where this is true. Today, a patient had a rectal Temp of 101.8. I turned the cooling blanket back on and it immediatly went to 40 degrees F. That would be like lying on Ice water. This poor lady feels bad enough without us torturing her! (How long can you leave the ice pack on your twisted ankle?)
I would think that Anterior, if at all, would be better, for the simple fact- even a weak, dying patient can at least wiggle out from under it.