Iatrogenic puncture in mare´s carotid artery

Abstract

There are few reports in the literature on accidental puncture of the carotid artery. For the correct administration of drugs in the intravenous route of horses, it is recommended that the anterior portion of the jugular be chosen, as it is farther from the carotid, separated by muscle groups. However, in adult horses with long and slender necks, iatrogenic puncture can occur, leading to neurological conditions, since a large amount of drugs reach the central nervous system. Therefore, this study aims to report the accidental carotid puncture during the administration of intravenous medication in the carotid artery of a nine-year-old Quarter Horse mare. The keeper states that the mare moved, displacing the needle during the application. In the clinical examination after the accident, the animal showed signs of neurological shock caused by the fall of the animal at the end of the application, and circulatory alterations. Medication was then administered to reduce pain, but the animal died. However, it is concluded that the routine procedures of drug administration should follow protocols that aim to reduce the chances of damage as reported in this study, such as the use of needles compatible with the animal size, in addition to adequate physical restraint.