• V A Svetlov and S P Kozlov.
• Vestn. Akad. Med. Nauk SSSR. 1997 Jan 1(11):49-52.

AbstractThe evolution of central segmental blockades was studied in 133 patients by using epidural and spinal anesthesias. The efficiencies of 2% Ultracaine (Hoechst) and 2% Lidocaine (Egis) solutions used for epidural anesthesia and 5% Ultracaine (Hoechst) and 0.75% Bupivacaine (Astra) hyperbaric solutions were evaluated. Central segmental blockade induced by Ultracaine was found to be similar to Lidocaine and Bupivacaine in clinical parameters. At epidural blockade, the latent period was identical for the two agents and the duration of analgesia caused by Ultracaine was 20 minutes longer than that with Lidocaine, the consumption of the former being 20% less. At spinal anesthesia, there were no great differences in the depth and duration of conduction block, but with 5% Ultracaine, the analgesic zone was large (13.2 +/- 1.0 and 15.1 +/- 0.6 segments, p < 0.05). No differences were found in the magnitude of hemodynamic changes both with various anesthetics and different types of segmental blockades. The findings make it possible to regard Ultracaine as an drug that has some advantage over Lidocaine for prolonged epidural anesthesia and similar to the latter in pharmacological characteristics. Ultracaine may be regarded as alternative to Bupivacaine for spinal anesthesia.

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