A novel technique of ultrasound-guided brachial plexus block in calves

作者：Iwamoto Jiro; Yamagishi Norio^*; Sasaki Kouya; Kim Danil; Devkota Bhuminand; Furuhama Kazuhisa

来源：Research in Veterinary Science, 2012, 93(3): 1467-1471.

DOI：10.1016/j.rvsc.2012.05.010

• Analgesia
• Brachial plexus block
• Calf
• Forelimb
• Ultrasound

An interventional ultrasound technique to increase the safety of surgical treatment of the calf forelimb was tested. First, the brachial plexus was evaluated using ultrasonography and then 2% lidocaine was injected under ultrasound guidance. Ultrasonically, the brachial plexus appeared as multiple hypoechoic areas surrounded by a hyperechoic rim or a hyperechoic structure characterised by multiple discontinuous lines. It was located between the omotransverse muscle and axillary artery and vein. The sensitive effect in the forelimb was seen mainly in the area supplied by the musculocutaneous nerve, indicating successful blockage in the nerve plexus. Out of the eight forelimbs, the motor effect was observed in seven forelimbs. These results suggest the clinical feasibility of ultrasound-guided brachial plexus block in bovine medicine, although further studies are needed to examine various approaches, including the sites of needle insertion and the appropriate volume and dosage of anaesthetic.

• 出版日期2012-12