Efecto analgésico del bloqueo del plexo braquial por medio de una técnica combinada de ultrasonido y electrolocalización en tres perros sometidos a osteosíntesis de radio

Abstract

The brachial plexus block is a loco-regional anaesthetic technique useful to prevent nociceptive discharges in distal canine elbow surgeries. The anesthetic management performed in three canines submitted to ostheosyntesis of the radius is presented. For this purpose, the brachial plexus was blocked by means of a combined ultrasound and electrolocation technique, using an anesthetic mixture of bupivacaine/lidocaine. This was part of a multimodal analgesic protocol that also included acepromazine, morphine, meloxicam, propofol and isoflurane. The intraoperative cardiovascular variables evaluated (heart rate and mean arterial pressure) remained stable throughout the surgical procedure, reason why rescue analgesia was not used in any case. The post-operative pain score, assessed with the Glasgow scale, remained below the indicative limits of low analgesic coverage in all patients. The locoregional blockade employed allowed to minimize the consumption of isoflurane and avoided the use of intra-operative rescue analgesia, as well as the need to use supplementary analgesia in the post-operative period evaluated. Despite the limited ultrasound resolution of the ultrasound equipment used, the analgesic response obtained suggests that the brachial plexus block by means of the combined technique of ultrasound and electrolocation technique was effective to prevent perioperative pain in performing radius-ostheosyntesis in the canines evaluated.

Keywords:

analgesia

anestesia regional

dolor

ultrasonografía

analgesia

pain

regional anesthesia

ultrasonography

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