surgery of the trachea Flashcards
signalment for tracheal collapse
old lap dogs
a dog with tracheal collapse pass out.should u be that worried about it
syncope is good.it makes the tracheal mm. relax in the cervical region and allows for better passage of air.
list the options for tx tracheal collapse
- dorsal membrane plication
- ventral ring chondrotomy(nt used anymore)
- external tracheal splints (ring or spiral)
- internal tracheal stents
medical management of tracheal collapse
wt loss
cough suppresants
bronchial dilators
sedation
if u have grade 3 tracheal collapse,which techniques can u use to fix this
internal or external stents.
whats the disadvantage for tracheal plication
only works for the cervical region
hard to do in the thoracic region
discuss the sx procedure for the tracheal spiral splint
prosthetic is placed between the trachea and the neurovascular structures
the prosthesis is secured with a 5-0 monofilament non absorbable sutures
tracheal necrosis may result in longitudinal blood vessels being compressed
disadvantage for spiral tracheal splints
necrosis may occur due to vascular area being compressed
disadvantages of external tracheal splints
- extensive surgical approach
- anesthetic risks
- prolonged postoperative care and pain
- high cost of anesthesia and care
- tracheal adjacent to supported trachea may be at a high risk for collapse
advantages of external tracheal splints
most animals improves post operatively
potential advantages of internal stents
catheter delivery-no surgery require
shorter anesthesia
reduced post operative pain
reduced cost
entire traxhea is treated at once
potential disadvantages of internal tracheal stents
- endoscopy or fluroscopy required
- stent cannot be retrieved back into delivery catheter if error in placement oe sizing is made
possible complications of stenting
- decreased mucociliary clearance
- inflamation and exuberant granulation tissue formation
- pressure granulation
postoperative care in stenting
perioperative antibiotics
corticosteroids for 7 days
sedation
cough suppresants
24 hr o2 if needed
humidification
discuss sx tech for tracheal resection and anastemosis
- resection of 3-5 rings easily done
- use tension relieve sutures
- up to 8-10 rings(25%) can be resected
- tention sutures are placed 2-3 rings from the suture line on each side
- a pleural patch may be placed over the suture line
- resect trachea around between rings(split cartilage)
- handle trachea with umblical tape or traction sutures
- suture dorsal trachea membrane first
- place sutures around rings,add tention sutures if necessary