Atipamezole in the management of detomidine overdose in a pony.

The research article deals with the successful treatment of an accidental overdose of IV detomidine in a pony through the use of atipamezole. The pony exhibited an extended recovery time post-anaesthesia which led to the discovery of the error and subsequent administration of atipamezole resulted in successful recovery.

Context and Purpose

• The purpose of the research was to study the effectiveness of Atipamezole in treating an accidental overdose of Detomidine in a pony. The incident occurred during an elective castration procedure where the pony was first given too much Detomidine intravenously and then further doses during anesthesia, resulting in a longer than expected recovery time. This led to recognizing the overdose and subsequent treatment with Atipamezole was carried out.

Procedure

• The pony received an overdose of Detomidine (200 microg kg(-1)) prior to inducing anesthesia using ketamine and midazolam.
• During anesthesia, an additional dose of Detomidine (100 microg kg(-1)) was administered.
• The overdose was only recognized when the pony did not recover from anesthesia in the expected time frame. The total overdose given was 300 microg kg(-1).
• Treatment involved the administration of Atipamezole, initially through IV and then IM, titrated to effect, to a total dose of 1100 microg kg(-1).

Results and Conclusion

• After the administration of Atipamezole, the pony regained its standing position.
• A subsequent injection of Atipamezole (76 microg kg(-1) IM) was given after 5 hours to counteract signs of re-sedation.
• The research concluded that Atipamezole was an effective antagonist for Detomidine in a pony. The initial dose was 3.65 times, and a final total dose was 3.9 times greater than the alpha2 agonist.