Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial Comparative Study
Brief report: a randomized controlled trial of Synera versus lidocaine for epidural needle insertion in labouring parturients.
Skin infiltration with lidocaine, although brief, can be very stressful, painful, and may perpetuate anxiety. Synerat, a local anesthetic patch, which contains an oxygen-activated heating component to enhance the delivery of a eutectic mixture of lidocaine (70 mg) and tetracaine (70 mg), has provided analgesia for minor, dermatological procedures. We hypothesized that the analgesic effect of Synera, for pain in labouring parturients, would be superior to the traditional infiltration of lidocaine prior to epidural needle insertion. ⋯ The Synera patch provided inferior analgesia, for performing epidural labour analgesia in labouring parturients, compared to traditional infiltration with 2% lidocaine.