Pig Anesthesia and Surgery Flashcards
Too much stress (for example, during restraint) can cause/lead to what disease?
Malignant hyperthermia
Intubation is usually very hard to do in pigs, why is it still carried out in pet pigs/ asian pigs?
B/c they are more brachycephalic, likely to obstruct airways, and have large arytenoids
What is the problem with the pharmacokinetics/dynamics of anesthesia in pigs?
they have a shorter duration of action, and the duration varies w/ breed
Also some drugs have variable effects (ex- Morphine, xylazine have little effect)
How long do you withhold food before surgery?
8-12 hours (including edible bedding)
Which vein(s) is best for vascular access?
Marginal auricular vein
How do you tx malignant hyperthermia?
Dantrolene
IV effective, can do oral prophylactic in high risk breeds
Where do you inject sedation/premeds?
Inject into cervical muscles or triceps
inject while head in bucket of food
What are the premedications/sedation for pigs?
Azaperone
Azaperone + Ketamine
Azaperone + Ketamine + Midazolam
What are induction agents for pigs?
Aflaxan (10-20 min anesthesia, can top up every 10 min)
Ketamine + Midazolam
Propofol
Extradural anesthesia is used when? where do you inject?
Can be used for amputation of prolapse, castration, or other obstetrical procedures
Insert needle immediately behind L6 in midline and angle caudally @ 20 degrees
Use 60mm needle if <50kg, and 10cm needle if above
Lidocaine 2%
When is castration carried out?
not in commercial pigs in UK, but can be carried out by vets under anesthesia
< 7 d in EU
[suture tunic so no herniation]
When should vasectomys be carried out?
For teaser boars
no less than 2 weeks before required for work
Whats the best thing about elevator jokes?
They work on so many levels
