Large intestine dz: Cecum Flashcards
3 Large intestinal
segments
– Cecum
– Large Colon
– Small colon
number of taenia coli in cecum
3-6
1.7% - 5% of colic cases
Cecal Impactions
Can occur in any age horse - more
common in middle aged
Cecal Impactions
2 types of Cecal Impactions
– Firm, dry impaction of
feed material
– Cecal dysfunction &
fluid distention
in cases of cecal impactions,
Withhold feed ____ hrs after
cecum emptied
greater than or equal to 48h
in cases of cecal impactions, electrolyte solution is given via ___; ___ L every ____ hrs
NGT;
4-6L;
2-4h
in cases of cecal impaction, what type of fluid therapy is this:
* “Systemic overhydration”
– Hydrates intestinal lumen & softens
impaction
– Stimulates motility
IV polyionic fluids
3 laxatives used in cases of cecal impaction
- Magnesium sulfate (1 g/kg via NGT SID)
- Mineral oil ( 2-4 liters via NGT q 1-2 days)
- Dioctyl sodium succinate (DSS) - 10-30 mg/kg (10% solution)
Often required Tx in cecal impactions as impacted ingesta imbibes water and cecum distends
Analgesics
3 analgesics used in cases of cecal impactions
- Flunixin: 0.5-1.0 mg/kg IV SID-TID
- Xylazine
– 0.25-0.50 mg/kg IV
– 0.60-1.0 mg/kg IM - Butorphanol
– 0.01-0.02 mg/kg IV bolus with xylazine
– 0.02-0.10 mg/kg IM alone
2 surgical management in cases of cecal impactions
– Typhlotomy & evacuate cecal contents
– Cecal bypass
2 types of cecal bypass done in cases of cecal impactions
- Complete ileo-/jejunocolostomy (preferred)
- Incomplete ileo-/jejunocolostomy
To prevent recurrence of cecal impaction, ____ must be increased, while ___ content must be decreased
water - increase
fiber content - decrease
overall prognosis of cecal impactions
good
