Influence of azaperone/metomidate anaesthesia on blood biochemistry in the horse.

This research article discusses how the use of a mix of the drugs azaperone and metomidate as anaesthesia in ponies influences certain aspects of their blood biochemistry. The study found that the anaesthesia did not affect blood glucose levels but did cause some changes in lactate concentration, the lactate/pyruvate ratio, and the concentrations of some minerals in the plasma.

Research Design and Methodology

• The study was conducted on ponies which were anaesthetized through the administration of azaperone—an ataractic or tranquilizing drug—and metomidate—a hypnotic or sleep-inducing drug.
• Changes in the ponies’ blood biochemistry were monitored and measured during and after the influence of these drugs.
• Control experiments were conducted wherein only azaperone was administered to the ponies. This helped determine the isolated effects of azaperone, independent of metomidate.

Findings

• The study found no significant changes in the ponies’ blood glucose concentrations in both, circumstances where only azaperone was used and where the combination of both drugs was used.
• The concentrations of lactate and pyruvate in the blood, as well as the ratio of lactate to pyruvate, were not significantly affected by the use of azaperone.
• However, the use of metomidate did cause moderate increases in both, lactate concentrations and the lactate/pyruvate ratio, during the anaesthesia and in the post-anaesthesia recovery phase.
• The use of the combined azaperone/metomidate anaesthesia led to small reductions in concentrations of potassium, calcium, and magnesium in the plasma. Similar changes were observed when azaperone was administered alone.

Implications

• These findings are significant as they highlight how the use of these anaesthetic drugs makes biochemical changes in the blood, which could potentially inform clinical decision-making and drug usage protocols.
• The cause of these changes and their overall significance in the field of veterinary medicine are discussed in the article, providing potential areas for further research and consideration.