Anesthesiologist Questions Anesthesiologist

How long does local anesthetic last after surgery?

I will have a surgery under local anesthesia. How long does local anesthetic last after surgery?

7 Answers

It depends on what kind of local anesthetic was used. A longer duration local anesthetic can last the entire day.
Depends. If catheter is used for continuous infusion, it can last days.
Depends on the local, but you can count on 2-4 hrs
The answer depends on several factors. How much anesthetic is used, the type of local anesthetic, the concentration of local anesthetic, and how quickly you metabolize the drug all affect the duration of local anesthesia for any given procedure. There are strategies to prolong the anesthetic properties. If the duration of the block is a concern, discuss it with the person doing the block.
This depends on which local anesthetic is used and the type of block.  This can be anywhere from 60 minutes to up to 12-18 hours.

Steven Dain
Depends on the type of local anesthetics used with or without vasoconstrictor (like epinephrine). It should last for 30 minutes to several hours.
Maybe one to two hours