Epidural Morphine Delays the Onset of Tourniquet Pain During Epidural Lidocaine Anesthesia

Abstract

We examined the effect of epidural morphine on the onset of tourniquet pain during epidural lidocaine anesthesia. We found that the addition of 2 mg of morphine to epidural 2% lidocaine significantly delayed the onset of tourniquet pain without increasing morphine-related side effects.