Exam 1 - Canine and Feline Ovariohysterectomy Flashcards
What is an ovariohysterectomy (OHE)?
removing the ovaries and uterus
What is a spay?
to surgically remove the ovaries (and usually the uterus)
Is an ovariohysterectomy an open or closed procedure?
Open - laparoscopy
What is the role of the surgeon during the ovariohysterectomy?
Incision, find and remove the left ovary (first ovary), remove uterine body, and close body wall and skin layer
What is the role of the assistant surgeon during the ovariohysterectomy?
find and remove the right ovary (second ovary), and close the subcutaneous layer
How is a patient prepped for an ovariohysterectomy?
Clip wide margins, do a line block, and scrub protocol with aseptic technique
How should a patient be draped for a ovariohysterectomy?
Place 4 huck towels - one between you and the patient first and use Backhaus towl clamps to secure
Place a large paper drape and cut a small fenestration in it. Use Lorna-Edna clamps to secure
What is the approach for an ovariohysterectomy?
ventral midline incision
Where should the incision be centered in an adult dog?
On the cranial third of the caudal abdomen
Where should the incision be centered in prepubertal puppies and cats?
centered on the middle third
When should you use a #10 blade on the incision in an ovariohysterectomy?
for cutting into the skin and subcutaneous tissue
What is the use for metzenbaum scissors when making an ovariohysterectomy incision?
push cut subcutaneous tissues off of the body wall
How do you incise into the linea alba for an ovariohysterectomy?
Tent up for a stab incision and then extend it
What are the steps for an ovariohysterectomy from incision up until isolation of the ovary?
Locate the left horn and/or ovary with a spay hook or fingers
Palpate suspensory ligament
Break down suspensory ligament if needed for adequate exposure - usually don’t have to do in cats
Isolate ovary and find vasculature
Where is the preferred site for suspensory ligament rupture?
craniodorsal attachment to the abdominal wall the furthest away from the important vascular structures
How do you rupture the suspensory ligament?
Identify and hold the proper ligament
Identify the suspensory ligament at the cranial free border
Rupture the suspensory ligament in a controlled fashion - lateral to medial direction, close to the abdominal wall with your index finger
What should be clamped prior to ligating?
The pedicle and the proper ligament
What should the broad ligament be fenestrated with in a dog?
hemostat or Rochester-Carmalt forceps
What should the broad ligament be fenestrated with in a cat?
hemostat or Bainbridge forceps
What should the pedicle be clamped with, with how many clamps, and where?
2 Rochester-Carmalt or Bainbridge forceps proximal to the ovary (close to the abdomen)
How many clamps should the proper ligament be clamped with and where?
1 clamp distal to the ovary
What should the pedicle be ligated with (suture and ligation type) in the dog?
Polydioxanone 2-0 or 0
Miller’s knot at 1st forceps
Transfication ligature at 2nd forceps
What should the pedicle be ligated with (suture and ligation type) in the cat?
Polydioxanone 2-0 or 3-0
Miller’s knot at the first forceps
Encircling ligature at 2nd forceps
After knots and ligatures have been placed, what should be done next?
Transect the ovarian pedicle with Metzenbaum scissors or scalpel blade and evaluate hemostasis with thumb forceps (get surgeon to verify before releasing)
