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  • Title: [Pharmacology of local anesthetics and clinical aspects of segmental blocking. II. Spinal anesthesia].
    Author: Kozlov SP, Svetlov VA, Luk'ianov MV.
    Journal: Anesteziol Reanimatol; 1998; (5):37-42. PubMed ID: 9866246.
    Abstract:
    Clinical picture of development of segmental blocking after subarachnoidal injection of hyperbaric solutions of 0.75% bupivacaine, 5% ultracaine, and isobaric 0.5% bupivacaine is studied. A total of 152 patients operated on the lower part of the body and the lower limbs were examined under conditions of single, prolonged subarachnoidal, and combined spinal epidural anesthesia. Ultracaine and bupivacaine in different concentrations with different barism provided anesthesia equivalent by the efficacy, depth, and dissemination of sensory block. Segmental blocking with 5% ultracaine was characterized by the shortest latent period (3.14 +/- 0.16 min, p < 0.05) but was no shorter (124.1 +/- 3.37 min) than operative analgesia with 0.75% hyperbaric bupivacaine (120.0 +/- 5.10 min). Isobaric bupivacaine provided the longest effective analgesia (215.0 +/- 45.0 min, p < 0.05). Microcatheter technique improved the safety and control of subarachnoidal anesthesia in comparison with a single injection, and combined spinal epidural anesthesia shortened the latent period of segmental blocking and ensured intraoperative anesthesia and postoperative analgesia at the expense of the epidural component.
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