In the medical field, CEI stands for continuous epidural infusion.
This refers to a method of administering medication, usually for pain relief, where a constant flow of anesthetic solution is delivered into the epidural space. According to the provided reference, CEI is one of several methods of epidural analgesia, which also include:
- Combined spinal-epidural (CSE)
- Intermittent epidural bolus (IEB)
- Patient-controlled epidural analgesia (PCEA)
- Programmed intermittent epidural bolus (PIEB)