Impaction of the Cecum and Large Intestine in Horses

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What are the most common sites of impaction associated with colic in horses?

Transverse colon region and the base of the cecum

Pelvic flexure region of the left colon and the base and body of the cecum (correct)

Pelvic flexure region of the left colon and right dorsal colon

Right dorsal colon and transverse colon regions

What has been speculated as a possible reason for impaction of the cecum in affected horses?

Infection with tapeworm Anoplocephala perfoliata

Diseased or poorly managed teeth

Insufficient water intake

Abnormal cecal muscular activity (correct)

Which breeds were overrepresented among horses with cecal impaction according to a clinical study mentioned in the text?

Mustang, Friesian, and Andalusian

Thoroughbred, Quarter Horse, and Warmblood

Morgan, Arabian, and Appaloosa (correct)

Pony, Paint Horse, and Draft Horse

Why is assessing fecal output especially important in horses being administered NSAIDs on a daily basis?

To detect abnormalities early Signup and view all the answers

What is a possible consequence of sand impaction in horses?

Signs of abdominal pain due to gas in the colon Signup and view all the answers

How is sand impaction treated medically in horses?

Intragastric administration of psyllium to purge sand from the lumen Signup and view all the answers

Why may it be challenging to distinguish sand impaction from an intestinal displacement?

Both conditions present with signs of abdominal pain and colic Signup and view all the answers

What might indicate the need for surgical intervention in cases of sand impaction?

Complete obstruction of the transverse colon lumen by sand Signup and view all the answers

Which part of the horse's intestine is most commonly affected by sand accumulation?

Right dorsal colon and transverse colon Signup and view all the answers

What can severe signs of pain in sand impaction be attributed to?

Obstruction occluding the lumen of the transverse colon Signup and view all the answers

What is the most common site of obstruction in horses with simple impactions?

Pelvic flexure region Signup and view all the answers

How is the diagnosis of simple impactions typically made in horses?

Rectal examination Signup and view all the answers

What is the mainstay of treatment for horses with cecal or large-colon impaction?

Fluid therapy Signup and view all the answers

Which age group of horses are more likely to experience colic due to cecal impactions?

>8 years old Signup and view all the answers

What is the prognosis associated with impactions involving the large colon?

>90% Signup and view all the answers

What is one method of surgical treatment for cecal impactions that some surgeons prefer?

Ileocolostomy Signup and view all the answers

Why has interest increased in using enteral fluid therapy to treat horses with impactions?

It is less expensive than intravenous fluid therapy Signup and view all the answers

What is a typical symptom exhibited by horses with simple impactions?

Increased heart rate Signup and view all the answers