Misconceptions in Small Animal Anesthesia Flashcards
Greyhounds and Thiobarbiturates
Delayed recovery due to decreased liver metabolism
Greyhounds and Hyperkalemia
Progressive increase in K levels
Duration of anesthesia >2h
Which breeds have DEPOH gene mutation causing bleeding disorders? How can this be avoided?
Greyhounds
Wolfhounds
Sighthounds
Use anti-fibrinolytic drugs
MDR1 mutation in collies
Nonfunctional p glycoprotein = excessive CNS exposure
Ace, butorphanol
MDR1 mutation in cats
Neurotoxicity with eprinomectin
Acepromazine in boxers
Collapse
Increased vagal response (decreased HR, BP)
Brachycephalics
Upper airway obstruction
Challenging intubation and recovery
Prone to regurgitation and aspiration
Keep intubated as long as possible
Cats and opioids
Only very high doses of opioids cause excitation/dysphoria in cats
Beneficial effects of opioids
Excellent analgesia
Great CV stability/minimal depression
Potent anesthetic sparing effect
Reversible
Side effects of opioids
Bradycardia (easily treated)
Vomiting, diarrhea (morphine > methadone)
Hypothermia
Hyperthermia (cats)
Pain relief with butorphanol
Only indicated to treat mild pain
Not as efficacious as pure mu agonists
Short duration 1-2h max
Opioid potency
Fentanyl > hydromorphone > morphine
CV depression with a2 agonists
Even very small doses can cause CV depression
Similarities/differences of alfaxalone and propofol
Alfax can be given IM
Otherwise clinically very similar
Similarities/differences of sevo and isoflurane
Not clinically significantly different
Sevo = lower solubility, faster induction/recovery
Sevo = potentially toxic byproducts
