OHE Flashcards Preview

Surgery Lab Quiz > OHE > Flashcards

Flashcards in OHE Deck (36):
1

What is the difference of an OHE and OVE?

OHE: sx removal of ovaries and uterus
OVE: removal of ovaries alone

2

T/F: OVE puts a patient at risk for future pyometra?

FALSE- no disadvantage, quicker procedure and removing source of progesterone

3

What are some indications of an OHE?

Elective sterilization
Tx of ovarian neoplasia
Tx or prevention of uterine dz
Prevention/treatment of vaginal hyperplasia/prolapse
Prevention of mammary neoplasia

4

What are some advantages of an OHE?

Prevention of mammary tumors
Idiopathic epilepsy (estrogen related)
Diabetes mellitus (progesterone blocks insulin)

5

What are four disadvantages of an OHE?

Obesity (decreased metabolic rate, increased appetite)
Orthopedic problems (Hip dysplasia, CCL rupture)
Urinary incontinence (20% spayed bitches-estrogen controls sphincter mechanism)
Neoplasia (HSA, Lymphoma)

6

What is the length off the midline for a OHE for draping?

2-3 cm off ventral midline

7

What are the landmarks for the quarter drapes and the final drape?

Quarter drape: xiphoid to pubis
Final drape: umbilicus to pubis

8

How far should the SubQ be dissected away from the fascia?

5 mm blunt dissection

9

What is a complication that can occur if too much dead space has been created?

Seroma

10

Where are the ovaries located?

Caudal pole of the kidney

11

Where does the uterine body lie?

Between bladder and colon adjacent to ureters

12

The uterine horns are positioned where?

dorsolateral abdomen

13

How do you retrieve the uterine horn with a spay hook?

Place in incision w/ hook facing abdominal wall
Reach dorsal gutter
Turn hook 180 degrees towards midline

14

Where is the proper ligament?

Between ovary and uterine horn

15

Where is the suspensory ligament?

cranial pole of ovary to body wall/last rib

16

Where do the ovarian arteries come from?

directly off the aorta

17

What do the right and left ovarian veins drain into?

Right: vena cava
Left: left renal vein

18

What are the two clamping methods used for OHE?

Modified 3 clamp technique
3 clamp technique

19

Where are the miller's and transfixing ligature placed in relation to the clamps?

Millers knot placed in crush of most proximal clamp
Transfixing ligature proximal to middle clamp (flash!)

20

What are two monofilament absorbable suture that can be used?

Polydioxanone
Poligecaprone

21

What are two braided absorbable suture that can be used?

Polygactin 910 (vicryl)
Polyglycolic acid

22

Why should non-absorbable suture be avoided?

Fistulous tracts

23

What are the suture sizes used?

2-0 for most
3-0 for toy breeds
0 for giant breeds

24

What are four things that you should always do in an OHE procedure?

Check ovarian bursa to ensure you have removed entire cavity
Remove ovaries/uterus from sx field
Remove blood from dorsal gutters
Look for hemorrhage

25

How should you check the ovarian pedicles?

Left pedicle
Mesocolon medially
Right pedicle
Mesoduodenum medially

26

What size suture should be used in subQ and what pattern?

3-0 and simple continuous pattern with a buried knot

27

What skin pattern should be used and what size suture?

Cruciate pattern with a 3-0 non-absorbable monofilament suture

28

What is the most common cause of death in a OHE procedure?

Hemorrhage

29

What are three common causes of hemorrhage?

Tearing of pedicle while strumming
Incomplete ligation
Loose ligatures

30

What size dogs have an increased risk of hemorrhage?

>25 kg. patients

31

What can be a result of inappropriate aseptic technique or increased anesthesia time?

Infection

32

What can be a complicaiton of inappropriate sx technique or inappropriate aftercare?

Dehiscence

33

T/F: Males may still try and mate with a dog in estrus early post-op

TRUE

34

What complicaiton leads to uroabdomen or hydronephrosis?

Ligation/clamping injury of ureter (may require ureteronephrectomy)

35

What is the approach for a feline OHE?

middle 1/3 of caudal abdomen
Shorter incision

36

T/F: In cats the SubQ typically not closed

TRUE- not much available to close