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Exam 3
Non-repro effects of gonadectomy
21
Veterinary Medicine
Professional
10/27/2016

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Cards

Term
What is the single most important measure to combat overpopulation? Is this imperically supported?
Definition
-spaying and neuterine
-not really but it is generally accepted as what we plan on doing b/c it is really all we can do
Term
Discuss the popularity of the idea of non-surgical contraception.
Definition
-Michelson Prize in Repro Biology: offer $25 million prize to first person who manages this
-Michelson Grants in Repro Bio: up to $50 million grand funding available for research directed to achieving this goal
Term
In addition to spaying and neutering, what is another facet of fighting overpopulation as a vet?
Definition
-EDUCATION
-most people do not have the understanding of repro phys and they antrhopomorphize the experience of motherhood
Term
How is the metabolism affected by gonadectomy? (or generally accepted info on the subject)
Definition
-obesity is proposed to be inc in gonadectomized animals but it is questionalble and manageable if true
-Diabetes: there is no conclusive evidence of this but some people think it is true
Term
How are orthopedic disorders affected by gonadectomy?
Definition
-hip dysplasia: Goldens (only a 5% inc has bee shown)
-Long bone fractures: no conclusive evidence but suspected
-cranial cruciet ligament rupture: efinitely inc
Term
How does gonadectomy or lack thereof affect behavior?
Definition
-all animals have inc risk of aggression if left intact is generally accepted
-however certain studies have showed that spayed females are more aggressive in generaly but it is very breed-specific
-gonadectomy dec sexual behaviors in males (marking and wandering)
-mammary cancer dec in spayed females
-TCC ;inc chance in fixed animals
-osteosarcoma inc rick in neutered dogs
-hemangiosarcoma worse chances in fixed animals
-worse chances for cutaneous mast cell in spayed females
-lymphosarcomas worse in intact males
-cardiac tumors worse in spayed females
Term
Do spayed bitches or intact bitches have an increased incidence of urethral sphincter mechanism incompetence?
Definition
-spayed bitches
-earl-spayed bithces worse
Term
How is the anatomy of bitches affected by early gonadectomy?
Definition
-recessed vulva,vaginal dermitis, vaginitis, and UTI more likely to occur
Term
What occurs with more frequently with gonadectomized Viszlas?
Definition
-mast cell cancer
-lymphoma
-hemangiosarcoma
-all other cancers, all cancers combined
-fear of storms
Term
What is more likely to occur with German Shepherd Dogs?
Definition
-joint disease
Term
Pet overpopulation remains a big problem in this country. What is the recommendation?
Definition
-gonadectomy prior to adoption
Term
What are the benefits of neutering toms? Reccomendation?
Definition
-generally urine spraying makes males unsuitable as pets when intact
-gonadectomy prior to puberty or as soon as breeding life is over
Term
What are the benefits of OHE in queens?
Definition
-dec incidence of mammary neoplasia
Term
What are the detriments of OHE in queens?
Definition
-pos-surgical complications
-obesity
-inc incidence of FLUTD
-diabetes
Term
What is our recommendation in queens?
Definition
-severity and incidence of mammary neoplasia outweigh other concerns: recommend OHE before first estrus
Term
What are the benefits of neutering a dog?
Definition
-dec incidence of testicular neoplasia
-dec incidence of BPH
-inc lifespan
Term
What are the detriments of neutering a dog?
Definition
-obesity
-inc prostatic adenocarcinoma
-inc osteosarcoma
-inc hemangiosarcoma
-inc CCL rupture
Term
What is our recommedation in dogs?
Definition
-severity and incidence of negative consequences could outweigh the benefits
-must do a case-by-case assessment: breed, working life, owner's wish
Term
What are the benefits of OHE in bitches?
Definition
-dec incidence of mammary neoplasia
-dec incidence of pyometra
Term
What are the detriments of OHE in bitches?
Definition
-obesity
-inc osteosarcoma
-inc hemangiosarcoma
-inc TCC
-inc CCL rupture
-inc USMI
Term
What is our recommendation for bitches?
Definition
-in most cases, OHE is indicated after 3 months of age but before first estrus
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