Lee Inhyung, Yamada Haruo
Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan.
J Am Vet Med Assoc. 2005 Sep 1;227(5):781-4, 741. doi: 10.2460/javma.2005.227.781.
A modified method for epidural anesthesia in standing cattle undergoing flank surgery in which fixed volumes of xylazine and lidocaine were injected is described, along with results in 18 cattle. A Tuohy needle was inserted into the L1-2 intervertebral space from a dorsal midline approach, positioning of the needle tip in the epidural space was confirmed by use of the hanging drop technique, the needle was slowly advanced 7 to 10 mm to penetrate the epidural fat, and the anesthetic solution was then administered. In the initial 8 cattle, the anesthetic solution consisted of 1 mL of 2% xylazine and 4 mL of 2% lidocaine. However, 1 of these cattle became recumbent prior to surgery. Therefore, the dose of lidocaine was decreased, and in the subsequent 10 cattle, the anesthetic solution consisted of 1 mL of 2% xylazine and 3 mL of 2% lidocaine. Surgery was begun 30 minutes after epidural administration of anesthetic; surgery time ranged from 27 to 276 minutes. Sedation and anesthesia were adequate, except in 1 cow that received the lower dose of lidocaine and became recumbent during suturing of the incision. The modified epidural anesthesia technique with injection of fixed volumes of xylazine and lidocaine appears to be an adequate method for anesthesia of standing cattle undergoing flank surgery.
本文描述了一种改良的硬膜外麻醉方法，用于站立位进行侧腹手术的牛，该方法是注射固定体积的赛拉嗪和利多卡因，并给出了18头牛的麻醉结果。采用Tuohy针从背中线进针，刺入L1-2椎间隙，通过悬滴技术确认针尖位于硬膜外腔，然后将针缓慢推进7至10毫米以穿透硬膜外脂肪，随后注入麻醉溶液。最初的8头牛，麻醉溶液由1毫升2%赛拉嗪和4毫升2%利多卡因组成。然而，其中1头牛在手术前就卧倒了。因此，降低了利多卡因的剂量，在随后的10头牛中，麻醉溶液由1毫升2%赛拉嗪和3毫升2%利多卡因组成。硬膜外注射麻醉剂30分钟后开始手术；手术时间为27至276分钟。除了1头接受较低剂量利多卡因的母牛在切口缝合时卧倒外，镇静和麻醉效果均良好。注射固定体积赛拉嗪和利多卡因的改良硬膜外麻醉技术似乎是站立位进行侧腹手术的牛麻醉的一种合适方法。
