What is the #1 complication associated with esophageal choke?
cranioventral lung lobe
What is the main cause of esophageal choke in horses?
food (dry feed - corn, grain)
The esophagus is on the left side of the neck. You can try to massage bolus back up to mouth
What are the indications for a rumen fistula?
- Relieve free gas bloat in calves
- For nutritional studies
- Feed an animal directly in the rumen
What is the main cause of esophageal choke in pigs and cows?
rocks, corn cobs, etc.
The rumen is closed using a ________ pattern
What is the most common indication for a rumen fistula?
To relieve free gas bloat (chronic tympany) in calves
The surgery takes place in the upper left paralumbar fossa. The incision should be about the size of a silver dollar through the dorsal sac of the rumen
What indicates right-sided heart failure in this cow?
Brisket edema, sub-mandibular edema (bottle jaw), looks stressed
This person is performing a ________ on this cow. He is squeezing the cow while auscultating in order to get a pain response to check for __________
This person is performing a grunt test on this cow. He is squeezing the cow while auscultating in order to get a pain response to check for hardware disease
This person is performing a sensual back massage on this cow. He is squeezing the cow while auscultating in order to get a pain response to check for excessive stress carried in the shoulders
When considering an esophagotomy, it is important to be conscious of the vital structures dorsolateral to the esophagus. Name some:
- Common carotid artery
- Vasosympathetic trunk
- Recurrent laryngeal nerve
Identify this piece of equipment:
Used to hold the rumen open during surgery
T/F: A rumen fistula must be small to be effective
Why should you spread the muscles instead of cutting them when creating a rumen fistula?
creates a valve-like effect
Cows with choke usually die from ________
T/F: In most animals that survive choke, the most common factor is that they all underwent surgery
In most animals that survive choke, the most common factor is that the obstruction was relieved without surgery
What is this and what is it used for?
For prevention of hardware disease
What are the indications for rumenotomy?
- Traumatic reticuloperitonitis
- Grain overload
- Vagal indigestion
- Foreign body
With regard to rumen fistula, where does the surgery take place?
Upper left paralumbar fossa
Incision should be about the size of a silver dollar (or 1 EC dollar)
What is an important differential for a cow that looks like the one in the pic with lots of salivation and is very nervous looking?
What can happen if choke is present for greater than 48 hours?
Necrosis, with potential for stricture or stenosis
What is the #1 cause of right-sided heart failure in cattle?
Reticuloperitonitis with migration to the heart