Using phenylephrine in spinals

[heartICU]

How many of you have ever used phenylephrine in your spinal mixture? Someone at my clinical site (a CRNA who has been practicing for many years) mentioned that has added 5mg of phenylephrine to a spinal mixture and it significantly prolonged the length of the block (as long as 12 hours!). He couldn't remember the local he mixed it with, and I looked in several of my reference books. Can't seem to find anything, so he seems to think it was one of those things people did a long time ago and never documented in the literature. Anyone have any experience with this?

[Brenna's Dad]

Nice!!

I have never used phentlephrine in my spinals, but had thought the dose was 50 mcg. 5 mg...now that seems like a hefty dose.

Very interesting and thank you for bring it to my attention.