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Surgery Lab Quiz > OHE > Flashcards

OHE Flashcards

1
Q

What is the difference of an OHE and OVE?

A

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

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2
Q

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

A

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

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3
Q

What are some indications of an OHE?

A 
Elective sterilization
Tx of ovarian neoplasia
Tx or prevention of uterine dz
Prevention/treatment of vaginal hyperplasia/prolapse
Prevention of mammary neoplasia
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4
Q

What are some advantages of an OHE?

A 
Prevention of mammary tumors
Idiopathic epilepsy (estrogen related)
Diabetes mellitus (progesterone blocks insulin)
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5
Q

What are four disadvantages of an OHE?

A

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

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6
Q

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

A

2-3 cm off ventral midline

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7
Q

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

A

Quarter drape: xiphoid to pubis

Final drape: umbilicus to pubis

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8
Q

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

A

5 mm blunt dissection

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9
Q

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

A

Seroma

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10
Q

Where are the ovaries located?

A

Caudal pole of the kidney

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11
Q

Where does the uterine body lie?

A

Between bladder and colon adjacent to ureters

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12
Q

The uterine horns are positioned where?

A

dorsolateral abdomen

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13
Q

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

A

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

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14
Q

Where is the proper ligament?

A

Between ovary and uterine horn

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15
Q

Where is the suspensory ligament?

A

cranial pole of ovary to body wall/last rib

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16
Q

Where do the ovarian arteries come from?

A

directly off the aorta

17
Q

What do the right and left ovarian veins drain into?

A

Right: vena cava
Left: left renal vein

18
Q

What are the two clamping methods used for OHE?

A

Modified 3 clamp technique

3 clamp technique

19
Q

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

A

Millers knot placed in crush of most proximal clamp

Transfixing ligature proximal to middle clamp (flash!)

20
Q

What are two monofilament absorbable suture that can be used?

A

Polydioxanone

Poligecaprone

21
Q

What are two braided absorbable suture that can be used?

A 
Polygactin 910 (vicryl)
Polyglycolic acid
22
Q

Why should non-absorbable suture be avoided?

A

Fistulous tracts

23
Q

What are the suture sizes used?

A

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

24
Q

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

A

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
Q

How should you check the ovarian pedicles?

A

Left pedicle
Mesocolon medially
Right pedicle
Mesoduodenum medially

26
Q

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

A

3-0 and simple continuous pattern with a buried knot

27
Q

What skin pattern should be used and what size suture?

A

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

28
Q

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

A

Hemorrhage

29
Q

What are three common causes of hemorrhage?

A

Tearing of pedicle while strumming
Incomplete ligation
Loose ligatures

30
Q

What size dogs have an increased risk of hemorrhage?

A

> 25 kg. patients

31
Q

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

A

Infection

32
Q

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

A

Dehiscence

33
Q

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

A

TRUE

34
Q

What complicaiton leads to uroabdomen or hydronephrosis?

A

Ligation/clamping injury of ureter (may require ureteronephrectomy)

35
Q

What is the approach for a feline OHE?

A

middle 1/3 of caudal abdomen

Shorter incision

36
Q

T/F: In cats the SubQ typically not closed

A

TRUE- not much available to close

Surgery Lab Quiz (11 decks)

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