Lee Inhyung, Yamagishi Norio, Oboshi Kenji, Sasaki Naoki, Yamada Haruo
Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan.
J Vet Sci. 2006 Mar;7(1):69-72. doi: 10.4142/jvs.2006.7.1.69.
Segmental dorsolumbar epidural anesthesia has been considered difficult to perform. The purpose of this study was to determine whether or not it is difficult for beginners to learn how to do modified dorsolumbar epidural anesthesia of cattle. Thirty cattle were divided into two groups, young (n = 8) and adult (n = 22), according to their age and body weight, and 0.12% new methylene blue (NMB) was injected into the first interlumbar (L1.L2) epidural space by four fifth-year veterinary school students who had never performed this method. After a 1 hour lecture on the modified dorsolumbar epidural anesthesia procedure which included basic anatomy and skills, each student successfully performed the procedure. In the young group, the NMB solution was distributed between the periosteum and the epidural fat (BPF) in one half and between the epidural fat and the dura mater (BFD) in the other half of the cattle. In about 60% (13/22) of the adult group, the NMB solution distributed as BFD type. This study showed that the modified dorsolumbar epidural anesthesia procedure is easy for beginners to perform if they overcome their fear about the deeper insertion of the epidural needle with basic anatomical knowledge and a little experience.
节段性背腰部硬膜外麻醉一直被认为难以实施。本研究的目的是确定初学者学习如何对牛进行改良背腰部硬膜外麻醉是否困难。根据年龄和体重将30头牛分为两组，即青年组（n = 8）和成年组（n = 22），由4名从未实施过该方法的兽医学院五年级学生将0.12%的新亚甲蓝（NMB）注入第一腰椎间隙（L1-L2）硬膜外腔。在进行了1小时关于改良背腰部硬膜外麻醉操作（包括基本解剖结构和技能）的讲座后，每个学生都成功完成了该操作。在青年组中，NMB溶液在一半的牛中分布于骨膜和硬膜外脂肪（BPF）之间，在另一半牛中分布于硬膜外脂肪和硬脑膜（BFD）之间。在成年组中，约60%（13/22）的牛NMB溶液呈BFD型分布。本研究表明，如果初学者凭借基本解剖知识和一点经验克服对硬膜外针更深插入的恐惧，改良背腰部硬膜外麻醉操作对他们来说很容易实施。
