Notes
Slide Show
Outline
1
Survival Surgery Guidelines
  • Nanette R. Kleinman, DVM, DACLAM
  • Associate Director
  • Animal Resource Center
  • Case Western Reserve University
2
Animal Welfare Act Provisions Relating to Animal Research
  • Procedures involving animals will avoid or minimize discomfort, distress and pain


3
Provisions Continued
  • The Principal Investigator must have considered alternatives to procedures that cause more than momentary or slight pain
  • The experiment must be prepared in consultation with the attending veterinarian with the appropriate use of sedatives, analgesics or anesthetics
  • Experiments must not be performed using muscle paralyzing agents without adequate anesthesia Animals that would otherwise experience severe       unrelieved pain or distress must be euthanized.


4
Provisions Continued
  • Research personnel must be qualified and trained in the procedures they perform
  • All surgery must be accompanied by appropriate pre-operative and post-operative care.
  • All survival surgery must be performed using aseptic technique
  • No animal may be used in more than one major operative procedure unless it is scientifically justified or required for the health of the animal
5
Before Beginning
  • All proposed procedures and animal care must be contained within an approved and active IACUC procotol.
  • Training and expertise of investigatory staff is assessed at the time of protocol review.
6
The Veterinary Services Staff
  • Veterinary Services can provide training in animal handling, restraint, anesthesia, surgical asepsis and post op care
  • Veterinary Services may also be contracted to perform experimental procedures


7
Major Survival Surgery
Penetrates and exposes a body cavity or produces substantial impairment of physiologic functions
  • Rodents
    • Dedicated operating area not required
    • Aseptic technique required
  • Non-rodents
    • Dedicated operating area required
    • Aseptic technique required
8
Survival Surgery
Animal recovers consciousness, even momentarily, requires
  • Aseptic Technique
    • Hair removal and disinfection of the operative site
    • Use of sterilized instruments (alcohol soak not acceptable)
    • Use of proper surgical attire including surgical gloves, and masks
9
Rodent Species
10
Rodent Surgeries
  • May be performed in your lab
  • Surgical records are kept with the cage card
  • Aseptic technique and postoperative care should be followed as described in this presentation
11
Nonrodent Species
12
Reserving a Surgical Suite
  • Call the Veterinary Technicians Office (x2507) to schedule a surgery day and time.
  • Submit a Procedure Data Sheet to Veterinary Technicians Office, EB12A, as far in advance as possible but no less than 48 hours prior to surgery.
  • Procedure data sheets are available at http://labanimals.cwru.edu, the Vet Tech Office, EB12A or the ARC Office, TB03A.
13
The Day Before Surgery
  • Select a healthy animal for surgery
  • All species except rabbits should be fasted the night before scheduled surgery.
  • NO FOOD labels may be picked up from Veterinary Technician Office, EB12A
14
The Day of Surgery
  • Arrive on time.
  • Make sure all needed equipment to be provided by the PI is present and prepared.
15
Surgical Prep
  • Enter initial data in the anesthetic recovery record.
  • Aseptically place an IV catheter.
    • Intraoperative fluid requirement is 10-20 ml/kg/hr of sterile IV fluid such as Lactated Ringer’s Solution, 0.9% NaCl or 5% dextrose
  • IV lines may be omitted for rabbit surgeries of short duration
16
Induction of Anesthesia
  • Administer anesthesia IM or  IV to effect
  • Follow quickly with endotracheal intubation
    • Muscle relaxants are not needed for animal intubation
  • Depending on the species or surgical procedure, intubation may be omitted
17
Preparation of the Surgical Site
  • Clip the fur from an area twice as large as the expected surgical site.
  • A preliminary surgical scrub may be done at this time
  • Move the animal to the operating room
  • Place the animal on a drape covering a water circulating heating pad on the surgical table
18
Preparation of the Surgery Site
  • Sterile equipment and gloves are used
  • The scrubbed area is twice as large as the expected surgical field
  • Use a 4x4 pad and betadine or chlorhexidine as a surgical scrub
19
Surgical Prep, continued
  • Scrub using circular motion which begins in the center of the field and widens to the edges.
  • Discard the 4x4 sponge.
  • Repeat 6 times alternating betadine scrub and alcohol
  • Spray the scrubbed area with betadine solution
20
Preparation of the surgeon
  • Wear a scrub suit or roll sleeves above elbows
  • Remove all jewelry from hands and wrists
  • Put on a surgical cap and mask
  • Scrub all surfaces of the hands and arms for 5 minutes with betadine scrub or chlorhexidine scrub
21
Surgical Scrub
  • Rinse holds hands up so that dripping is toward elbow
  • Dry with towels in surgical pack
22
Put on the Surgical Gown
  • Touch only the inside of the gown with ungloved hands
  • A nonsterile “circulating nurse” is needed to tie the back of the gown
23
Put on Sterile Gloves
  • Open the surgical glove packet without touching the inside
  • Put on the LEFT glove
  • Touch only the INSIDE of the glove with your bare right hand
  • Put on the RIGHT  glove
  • Touch only the OUTSIDE of the glove with your gloved left hand


24
Drape the Surgical Site
  • Towel drapes
    • Drape the side nearest you first
    • Follow with the sides
    • Drape the side farthest away from you last
  • Final drape
    • Cover the towel drapes with a large drape

25
Intraoperatively
  • Follow sound principles of surgical technique
    • Gentle handling of tissues
    • Keep exposed tissues moist with sterile saline
    • Maintain the sterility of the surgical field
    • Keep track of small pieces of equipment and surgical sponges
    • All survival procedures will be monitored initially by a Veterinary Technician until proficiency has been assessed
26
The Immediate Post Op Period
  • Unless prior arrangements are made with Veterinary Services, all post procedural monitoring is the responsibility of the investigatory staff.
27
Recovery from Anesthesia
  • Monitoring is continuous until extubation
  • Then, every 30 minutes until the animal is sternal
28
Post Operative Monitoring
  • Daily until sutures are removed and animal has stabilized
  • Use SOAP format
    • Subjective
    • Objective
    • Assessment
    • Plan
29
SOAP Example
  • Subjective:
    • Appears painful, depressed
  • Objective:
    • Temp 101oF, incision clean and intact, minimal swelling, Not eating much.  Normal color, hydration
  • Assessment:
    • No sign of infection.  Post-operative pain
  • Plan:
    • Give buprenorphine, tempt to eat, monitor weight, continue observation
30
Analgesia – Pain Relief
  • If a procedure is known to be painful for humans, assume it is equally painful for animals
  • Know the signs of pain in the species you work with
  • Most lab animal species do not demonstrate signs of pain well
  • Preemptive analgesia for all animals is recommended http://iacuc.cwru.edu/policy/analganesth.html
  • The ARC veterinarians can recommend appropriate methods of providing analgesia
31
Suture Removal
  • Unless sutures are buried or absorbable, suture and/or surgical staple removal for all species must be done by 14 days post surgery.
32
Remember
  • The Veterinary Services Team is here to assist you in all your protocol needs


33
Survival Surgery Test
  • Congratulations!
  • Please document your training by completing the Survival Surgery Test