Читать книгу Complications in Equine Surgery - Группа авторов - Страница 276

If there is leakage of local anesthetic into the circulation the block will be inadequate, which is the most common sign of tourniquet failure in horses. If a high volume of local anesthetic is leaked, signs of systemic local anesthetic toxicity may appear, including rapid eye blinking, anxiety, ataxia, sedation, muscle tremors and collapse [9]. However, this seems unlikely in horses as the volume of local anesthetic solution injected for IVRA in the distal limb of a standard size horse would be between 30 and 60 mL, which would be a 1.2–2.4 mg/kg dose of lidocaine 2% in a 500‐kg horse. This dose is within the clinical dose of systemic lidocaine.