Difference between revisions of "Impaction - Horse"

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#REDIRECT[[:Category:Impaction - Horse]]
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{{unfinished}}
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{| cellpadding="10" cellspacing="0" border="1"
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| Also known as:
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|'''Colic<br>
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'''Impaction<br>
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'''Simple Obstruction<br>
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'''Mechanical Obstruction<br>
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'''Functional Obstruction<br>
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'''Oesophageal obstruction<br>
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'''Choke<br>
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'''Gastric Impaction<br>
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'''Small Intestinal Simple Obstruction<br>
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'''Ascarid Impaction<br>
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'''Ileal Impaction<br>
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'''Large Intestinal Simple Obstruction<br>
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'''Caecal Impaction<br>
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'''Colon Impaction<br>
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'''Large Colon Impaction<br>
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'''Pelvic Flexure Impaction<br>
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'''Sand Impaction<br>
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'''Small Colon Impaction<br>
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'''Meconium Impaction'''
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|}
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{| cellpadding="10" cellspacing="0" border="1"
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| See also:
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|'''[[:Category:Colic in Horses|Colic in Horses]]<br>
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'''[[:Category:Colic Diagnosis in the Horse|Colic Diagnosis in Horses]]<br>
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'''[[:Category:Medical Colic in the Horse|Medical Colic in the Horse]]<br>
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'''[[Colic, Medical Treatment|Medical Treatment of Colic]]<br>
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'''[[:Category:Surgical Colic in the Horse|Surgical Colic in the Horse]]'''
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|}
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==Description==
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Impactions are simple obstructions of the gastrointestinal system.  In the horse they include:
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*'''[[Impaction of the Oesophagus|Oesophageal obstruction ('choke')]]'''
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*'''[[Gastric Impaction|Gastric impaction]]'''
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*'''Small intestinal simple obstruction'''
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**[[Ascarid Impaction|Ascarid impaction]]
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**[[Ileal Impaction - Horse|Ileal impaction]]
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*'''Large intestinal simple obstruction'''
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**[[Caecal Impaction - Horse|Caecal impaction]]
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**[[Large Colon Impaction - Horse|Large colon impaction]]
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**[[Sand Impaction - Horse|Sand impaction]]
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**[[Small Colon Impaction - Horse|Small colon impaction]]
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**[[Meconium Impaction|Meconium impaction]]
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==Treatment==
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===Medical===
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See [[Colic, Medical Treatment|Medical Treatment of Colic in Horses]].
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*Initially intermittent abdominal pain controlled with analgesics:
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**Flunixin meglumine 0.25-1.1mg/kg IV every 6-12 hours
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**Butorphanol 0.05-0.1 mg/kg IV every 6-8 hours
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**Xylazine 0.3-0.5mg/kg IV as needed
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*Oral laxatives to soften the impaction:
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**Liquid paraffin or mineral oil 2-4lites by nasogastric tube every 12 to 24 hours
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**Anionic surfactant dioctyl sodium succinate (DSS) 6-12g/500kg diluted in 2-4litres of water by nasogastric tube every 12-24 hours
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*Saline cathartics such as magnesium sulphate 0.1 mg/kg in 2-4litres by nasgastric tube may also be useful
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*Prevent access to feed
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Aggressive oral and IV fluid therapy (2-4 times maintenance) if impactions persist(83)
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===Surgical===
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If impaction remains unresolved, pain becomes uncontrollable, or extensive gas distension of the colon occurs, surgery is indicated.  Abodominocentesis can be used to monitor the onset of intestinal compromise.(83)  At surgery the contents of the colon are evacuated via a pelvic flexure enterotomy.
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==Prognosis==
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Good for impactions that resolve medically (95% long term survival in one study) and fair in horses that require surgical intervention (58% long-term survival in the same study) (84)
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==Prevention==
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Frequent small feedings(32)
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==References==
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<references/>
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[[Category:Intestine_-_Mechanical_Obstruction]]
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[[Category:Medical_Colic_in_the_Horse]]
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[[Category:To_Do_-_Nina]]

Revision as of 14:31, 8 August 2010



Also known as: Colic

Impaction
Simple Obstruction
Mechanical Obstruction
Functional Obstruction
Oesophageal obstruction
Choke
Gastric Impaction
Small Intestinal Simple Obstruction
Ascarid Impaction
Ileal Impaction
Large Intestinal Simple Obstruction
Caecal Impaction
Colon Impaction
Large Colon Impaction
Pelvic Flexure Impaction
Sand Impaction
Small Colon Impaction
Meconium Impaction

See also: Colic in Horses

Colic Diagnosis in Horses
Medical Colic in the Horse
Medical Treatment of Colic
Surgical Colic in the Horse


Description

Impactions are simple obstructions of the gastrointestinal system. In the horse they include:

Treatment

Medical

See Medical Treatment of Colic in Horses.

  • Initially intermittent abdominal pain controlled with analgesics:
    • Flunixin meglumine 0.25-1.1mg/kg IV every 6-12 hours
    • Butorphanol 0.05-0.1 mg/kg IV every 6-8 hours
    • Xylazine 0.3-0.5mg/kg IV as needed
  • Oral laxatives to soften the impaction:
    • Liquid paraffin or mineral oil 2-4lites by nasogastric tube every 12 to 24 hours
    • Anionic surfactant dioctyl sodium succinate (DSS) 6-12g/500kg diluted in 2-4litres of water by nasogastric tube every 12-24 hours
  • Saline cathartics such as magnesium sulphate 0.1 mg/kg in 2-4litres by nasgastric tube may also be useful
  • Prevent access to feed

Aggressive oral and IV fluid therapy (2-4 times maintenance) if impactions persist(83)

Surgical

If impaction remains unresolved, pain becomes uncontrollable, or extensive gas distension of the colon occurs, surgery is indicated. Abodominocentesis can be used to monitor the onset of intestinal compromise.(83) At surgery the contents of the colon are evacuated via a pelvic flexure enterotomy.


Prognosis

Good for impactions that resolve medically (95% long term survival in one study) and fair in horses that require surgical intervention (58% long-term survival in the same study) (84)

Prevention

Frequent small feedings(32)

References