by Betty Stephenson, DVM

Reprinted from the March/April 2014 Claymore

I graduated from the University of Tennessee College of Veterinary Medicine in 1981, and our options for anesthesia were considerably more limited then than they are today. Inhalation anesthetics available were methoxyflurane and halothane with or without nitrous oxide, injectables were ketamine, xylazine, ultrashort barbiturates, and pentobarbital. While we might still use ketamine as part of a mixture for induction, it’s about the only one listed that’s still in common use in small animal practice. Most practices didn’t even have inhalants in those days. Now a small animal practice without it is in danger of being sued for malpractice if surgery is done there at all. Methoxyflurane gave way to halothane, and halothane to isoflurane as safer products became affordable for animals. Now many practices use sevoflurane, the next generation inhalant which is more quickly metabolized and excreted than its forebears. Soon newer and better drugs will replace these. And so anesthesia for Deerhounds will change with time, just as it changes for all breeds. Read more