3: Male Reprodutive Surgery Flashcards
What are indications for orchiectomy?
Sterilisation, behaviour, testicular tumours or torsion, avoid hormonally dependent disease e.g. prostate changes
What is the only type of aggression castration will reduce?
Only dog-dog aggression - NOT strangers or fearfulnes
What other behaviours can castration improve?
Urine marking and roaming
Which behaviours are reduced following castration in cats?
Fighting, roaming and spraying
What is traditional timing for castration?
6-8 months
At what age can you do pre-pubertal neutering in shelters?
7-12 weeks
What are some advantages of early neutering?
Fewer complications, faster recovery, retain juvenile appearance, behaviour
What are some disadvantages or early neutering?
Increased hip dysplasia and sexual behaviour
Why must you monitor cat weight after neutering?
BMR decreases
Which other body systems does neutering affect?
Genitalia and skeletal
What is the minimum age to castrate a Rottweiler?
Osteosarcoma if done below 12 months
What does later neutering decrease the risk of in Golden Rets and Labradors?
Cruciate disease and hip dysplasia
What do Golden Retrievers have a 4x risk of if neutered?
Haemangiosarcoma
In which breeds do you have more leeway on neutering times?
Small breeds
Why do you do a pre-scrotal incision?
Scrotal would swell - very painful
What are the indications for scrotal ablation?
Pendulous scrotum, trauma, tumour, urethrostomy
What do you do if you get a haematoma following castration?
Do a celiotomy, go to inguinal ring, ligate the artery intra-abdominally
In which location is the blood supply to the prostate?
Dorsolateral (prostatic artery, urethral, cranial and causal vesical)
In which location is the blood supply to the urethra?
Central
What causes a paraprostatic cyst?
Mullerian duct remnant
How does testosterone affect cartilage growth?
Facilitates cartilage growth and maturation in the physis so if neutered early get delayed closure
Process of penile amputation?
Ligate caudal superficial epigastric, castrate, scrotal or perineal urethrostomy
Which antibiotics are best for the prostate?
A basic, lipid soluble one eg erythromycin, TMPS, fluoroquinolones
