Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

RUSVM Surgery Lab I > Castration > Flashcards

Castration Flashcards

1
Q

Castration can treat/prevent what disease?

A

Crytorchidism

Neoplasia (testicular/scrotal/perianal gland adenoma)

Testicular torsion

Testicular abscesses

Scrotal urethrotomy

Prostatic diseases -cyst, abscess, BPH (doesn’t treat prostatic cancer)

Perineal hernia (testosterone weakness pelvic muscles)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Most common surgical approach for castrations?

A

Pre-scrotal (dogs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

When is a scrotal approach used?

A

Scrotum is incised but not removed

Pre-pubertal puppies

Cats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When would you use a perineal approach to a castrations?

A

Done to avoid resposition patient

More difficult to displace testicles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

When would you do a scrotal approach with ablation for castration?

A

Testicular or scrotal neoplasia/ trauma

Testicular torsion
Scrotal urethrostomy
Large mature pendulous scrotum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

When would you do an inguinal or abdominal approach for castration?

A

Cryptorchid

If inguinal, incision made directly over testicle

If abdominal , usually a audial ventral midline abdominal approach.. follow vas deferens/testicular artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Is the prescrotal approach, how is the patient draped?

A

2-3ccm off midline

Scrotum is out of surgical field

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where do you make your incision in a prescrotal approach?

A

You will advance the testicle and then make your incision on the median raphe over the testicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Should you do an open or closed castration in a dog with a large pendulous scrotum?

A

Closed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the difference between a closed and and open castration

A

Closed — does not penetrate PVT

Open — penetrates PVT

PVT= parietal vascular tunic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Benefits of closed castration?

A

Decreased risk of scrotal hematoma

Decreased postoperative swelling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Benefits of open castration?

A

Decreased risk of ligature slipping

Decreased risk of abdominal hemorrhage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How do you do a closed castration?

A

Ventral traction on testicle through incision

Strip spermatic fascia and scrotal ligament

Exteriorize spermatic cord

3 clamp technique (Rochester -carmalts) - proximal is placed 1-2cm from body wall, next two are 5mm apart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What suture do you use to ligate ?

A

2/0 monofilament absorbable (PDS)

Millers in crush of proximal clamp and transfixing/millers/circumferential proximal to remaining clamp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How do you close your incision after a castrations?

A

Two layer closure

3/0 monofilament PDS
-deep tissue and SQ — take bit of superficial midline, avoid urethra, bury knots

Skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How do you do an open castration.?

A

Provide ventral tension to exteriorize testicle

Do NOT strip spermatic fascial

Incise into PVT (NOT into VVT)
Exteriorize testicle

Place hemostat across PVT attachment
Digitally break down

Separate vessel from ductus deferens

3 clap ligation (ligate ductus and vessels together, ligate PVT separately

17
Q

Common complications from castration?

A

Scrotal hematoma
- cold and warm compress

Infection

  • poor aseptic technique
  • collar
  • antibiotics and topical cleansing

Hemorrhage

  • inadequate ligation
  • intra-abdominal hemorrhage

Swelling/bruising (very common)

18
Q

What do you call absence of both testicles?

A

Anorchism

19
Q

What do you call absense of a single testicle?

A

Monarchism

20
Q

What do you call one or both testicles not descended into scrotum?

A

Cryptorchidsim

Most testicles descend in 30-40days

If not descended by 6months =cryptorchid

21
Q

Signalment of cryptorchids?

A

Dog and cats

Unilateral more common
Small breeds — chihuauaha, poodle, Pomeranian

22
Q

T/F: crytorchid testicles are sterile and predisposed to neoplasia and torsion

A

True

23
Q

T/F: you should always look for other abnormalities in cats and dogs

A

True

Canine

  • hip dysplasia
  • patellar luxation
  • penile/preputial luxation
  • umbilical hernia

Feline

  • patellar luxation
  • short or kinked tail
  • tarsal deformities
  • eyelid angenesis
24
Q

3 locations of crytorchid testicles and treatment of these?

A

Prescrotal — remove normal testicle first and the push crytorchid testicle into same incision

Inguinal - incision over testicle and open castration

Abdominal — confirm by U/S, caudal abdominal approach
Move back to ventral midline
Follow testicular artery or vas deferens

25
Q

How do castrations of feline patients?

A

Pluck, do not clip scrotum
Dorsal or lateral recumbency

Legs pulled cranial

Incise cranial to caudal over testicles
Exteriorize

Closed
- liagate cord with overhand or figure 8 knot, allow to heal by second ingestion
OR
Open castration
-incise PVT then same ligature technique as dog or tie ductus deferens

Allow to heal by second intension

26
Q

Complications of feline castrations?

A

Funiculitis
Scrotal hematoma
Scrotal abscess
Priapism

RUSVM Surgery Lab I (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions