Regional anesthesia.

The research focuses on the use of local anesthetic agents in equine practice, noting that while overuse can lead to complications such as hind-limb weakness, motor paralysis, and changes in central nervous system activity, these instances are rare thanks to the high dosage required to elicit these effects. The research presents local anesthetics as a viable option for high-risk patients due to their low cost and minimal side effects.

Use of Local Anesthetics

• Local anesthetic agents are often preferred for high-risk patients due to their attractive attributes. These include rarity of causing organ toxicity, low cost, and few side effects.
• However, like any medicinal agents, local anesthetics can cause complications if overdosed. So, it is crucial to administer them in the right dosage.

Possible Complications from Overdosage

• Overdosage of local anesthetics can lead to a range of complications. Administered epidurally, they can potentially cause motor paralysis and hind-limb weakness.
• Systemic signs of overdosage encompass changes in the central nervous system’s activity, fluctuating between excitement and depression. Muscle tremors and hypotension, or low blood pressure, can also occur.
• These complications, however, are uncommon due to the high dose – 12 mg/kg – required to produce these effects in horses.

Practical Implications in Equine Practice

• Based on the research findings, it is recommended to use local anesthetic techniques in equine practice. This is justified by their low cost, rarity in side effects, and the high dose required for complications to arise.
• These features, combined with the crucial role of optimal dosage administration, make local anesthetics a viable option for dealing with high-risk patients in equine practice.