Diseases of the Stomach Pt. 1 Flashcards
EGUS involves 3 organs:
esophagus, stomach and duodenum
percent prevalence in performance horses (EGUS)
40-93%
__% prevalence in foals (EGUS)
25-51
EGUS Impact on Horses are the ff. except
A. Results in poor body
condition
B. Can cause colic, duodenal strcitures
C. Results in poor body
condition, esophagitis,
D. CHronic ulceration, perforation, peritonitis
E. ALL of the above
F. none of the above
E
equine stomach consists of cuboidal (non glandular) tissue T/F
F squamous
This is where 80% of equine ulcers occur; less resistant to acid injury
This part of equine stomach is more resistan to acid and 20% of injury occurs here
Glandular and mucus-secreting tissue
this separates the 2 parts of the equine stomach
margo plicatus
gastric lining damage occurs when (causes of EGUS)
1. Aggressive factors overpower. Give example
acid, pepsin, bile, organic acids
gastric lining damage occurs when (causes of EGUS)
2. defenses of gastric mucosa. Give example
bicarbonate, mucus
gastric lining damage occurs when (causes of EGUS)
3. Squamous mucosa lining lacks these defenses T/F
T
Risk factor for EGUS: feeding
Feeding management - increased acid when roughage are available. T/F
F - decreased dapat
horses graze for 17-19 hours a day T/F
F - 16-18 dapat
Gastric acidity (HCl) is high in a full stomach T/F
F - empty dapat
in intermittent feed deprivation, lesions are formed in glandular mucosa while there are NO lesions in squamous.T/F
These lesions are prevented by an anti ulcer medicine called _____
F - squamous ang with lesion
Ranitidine/Zantac
Fermentation of grain by resident bacteria and
production of by-products ___
Isolated bacteria___
Risk of grain feeding
Lactobacillus spp.
Risk factors for EGUS is training/racing whch includes intensive exercise. What does this result to? 3 answers
-Reduced blood flow to the stomach lining?
– Increased gastric acidity?
– Altered eating behavior?
Increased intra-abdominal pressure during intense exercise causes gastric compression, pushing acid contents into distal stomach T/F
F proximal
risk factor: stress
Illness, painful musculoskeletal disorder endometritis belongs to this type of stress.
Physical
risk factor: stress
-Stall confinement
– Transport
– Unfamiliar environment,social regrouping is under?
behavioral
NSAIDs that can cause EGUS
inihbit cox 1»_space;> inhibit ___ interrupting mucosal blood flow and mucus
Phenylbutazone & Flunixin Meglumine
prostaglandins
Clinical Signs of EGUS in Horses
Poor appetite
* Poor body condition
* Attitude changes
* Decrease in performance
* Mild to moderate colic
Clinical Signs of EGUS in Foals
- Poor appetite or intermittent nursing
- Colic
- Poor body condition
- Frequently lies on back
- Bruxism (grinding of teeth)
- Excessive salivation (Ptylism)
- Diarrhea
Clinical signs are specific for EGUS T/F
Lab results should show severe anemia T/F
Gastric endoscopy is the ONLY definitive diagnostic tool T/F
F - not specific, suggestive only
F- mild only
T
Endoscope dimension
9 ft long
lesion grading system
WHAT grade?
Epithelium intact; no hyperemia
(reddening) or hyperkeratosis
(yellow appearance of squamous
mucosa)
0
lesion grading system
WHAT grade?
Large, single or multifocal lesions
or extensive superficial lesions
3
lesion grading system
WHAT grade?
Mucosa intact; areas of reddening
or hyperkeratosis
1
Small, single or multifocal lesions what grade?
2
lesion grading system
what grade? Extensive lesions with areas of
apparent deep ulceration
4
fecal occult blood test other term
this test is very diagnostic. T/F
Guaiac Test
F
