Abomasal Conditions Flashcards
Are dairy or beef cattle more likely to have abomasal disorders?
Dairy
What does a thick intestinal wall indicate in a cow?
Lymphoma
Multifactorial disorder that occurs within the first month post-partum 80% of the time
Displaced abomasum
How does a gravid uterus affect the GI system of a cow?
Displaces rumen dorsally
How does a dorsally displaced rumen predispose to abomasal displacement?
More room for LDA
What do non-funtional abomasums contain to make them “float”
Air
Is LDA or RDA more common?
LDA (85-96% of the time)
The abomasum must be ______ to be displaced
Distended
Partial outflow obstruction
LDA and RDA
Complete outflow obstruction
R abomasal volvulus
Which direction does a R abomasal volvulus turn?
Counterclockwise
With RAV, an anion gap of ______ carries a poorer prognosis
> 30mEq/L
With RAV, a blood lactate of _____ carries a poorer prognosis
> 6mmol/L
Abomasalcentesis
Liptack test
What is the pH of the abomasum?
4.5
How will an LDA affect rumen positioning via rectal palpation?
Rumen will be medial instead of against the body wall
How does and RDA fold?
Counterclockwise folding upward
What is the most used technique for correction of an LDA?
R flank omentopexy
Which minimally invasive techniques are only used to correct LDAs?
Rolling, roll and toggle, laparoscopic techniques
Why are minimally invasive techniques not recommended?
Cannot confirm replacement of abomasum
What does abomasal content smell like?
Burnt almonds
What is a potential complication of a R paramedian approach to a displaced abomasum?
Dehiscense and abomasal fold prolapse
What approach is preferred if adhesions are present or if the cow is in late stage gestation?
L flank celiotomy
Why might some cows have more adhesions related to displaced abomasum on their left side than others?
Intermittent displacements
How do you pexy the pylorus/abomasum?
Partial thickness
Which side of the body does the abomasum need to be pexied to?
Ri body wall
Which direction does an obstructed abomasum most commonly twist?
Counterclockwise
How long does it normally take the abdominal wall to regain full strength after surgery?
2 months
Partial abomasal hernia
Richter hernia
What is the most common cause of abomasal impactions?
Lymphosarcoma
