Lecture 17: Equine Castration Flashcards
What is main reason to castrate
- prevent or eliminate aggressive male behavior
- Prevent breeding of mares
High flanker cryptorchid where is testicle
somewhere between abdomen and scrotum
unilateral cryptorchids are usually accessible __
inguinally
if you can not find cryptorchid testicle inguinally what is next step
laparoscopy
If cryptorchid do not mistake __ for testicle and remove just that
epididymis
t or f: rectal exam for cryptorchidism is valuable diagnostic
false- reveals nothing
What blood tests can you do to dx cryptorchidism
- Anti-mullerian hormone- single sample
- Human chorionic gonadotropin stimulation- collect serum before, 30 mins-2 days after IV administration of hcG
what is considered positive and negative hCG test for cryptorchidism
positive testosterone level >100pg/ml
Negative <40 pg/ml
what kind of emasculators are these and how do they
reimers- crush and cut separately
what kind of emasculators are these and how do they work
Serra- crush and cut simultaneously
closed equine castration is absolutely __ not for the field
aseptic procedure
if doing closed castration must obliterate __ or will make huge seroma
dead space
Where do you make incision for castration
1cm abaxial to median raphe, both sides
what going on here and is it a closed or open castration
cremaster and cord emasculated separately- becomes open castration because tunic gone
appropriate way to position emasculators on cords is
nut to nut
what is post-op management for castration
- Confine to clean stall for 12-24hrs- observe for hemorrhage and evisceration
- Forced exercise 15-30 minutes twice daily to control swelling
- Antibiotics and NSAIDs
what is the most common intraoperative and immediate post-op complication
hemorrhage
if can’t find source of hemorrhage/bleeding standing what do you do
- Reanesthetize
- Inspect and re-ligate cords if bleeding
- Ligate any other areas
- Pack with gauze if bleeding
If can’T find- refer
infection post-op is not common with adequate __
drainage
what can cause infection post-op
leaving too much cord behind
what is a scirrhous cord and what is cause
infected stump- left too much cord, not enough drainage
what wrong
scirrhous cord
evisceration is common in what breeds and what should you do to prevent
standardbred, warm bloods
Double ligate the cord
what is a hydrocele
fluid pocket
retained “stallion like” behavior or cut proud is typically due to what
left epididymis tissue- not enough duct removed
if you have cryptorchid what is first testicle you remove
retained testicle first- if can’t get then do not remove descended testicle
