university of tennessee college of veterinary medicine department of large animal clinical sciences...
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![Page 1: University of Tennessee College of Veterinary Medicine Department of Large Animal Clinical Sciences Esophageal Choke Horse Owners Seminar March 17, 2007](https://reader036.vdocuments.net/reader036/viewer/2022062515/56649c905503460f9494a853/html5/thumbnails/1.jpg)
University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Esophageal Choke
Horse Owners Seminar
March 17, 2007
Carla Sommardahl
![Page 2: University of Tennessee College of Veterinary Medicine Department of Large Animal Clinical Sciences Esophageal Choke Horse Owners Seminar March 17, 2007](https://reader036.vdocuments.net/reader036/viewer/2022062515/56649c905503460f9494a853/html5/thumbnails/2.jpg)
University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
My horse is choking???
• Heimlich maneuver will not help!!• Esophagus = muscular tube
leading from throat to stomach• Horse can still breath• Esophagus blocked by a foreign
object most commonly– Tumors or scar tissue from previous
choke
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Normal Anatomy
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Common Sites of Obstruction
• Esophageal opening • Mid cervical region• Thoracic inlet• Terminal Esophagus = Cardia
• Esophageal opening • Mid cervical region• Thoracic inlet• Terminal Esophagus = Cardia
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Potential areasof obstruction!
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Common foreign objects
• Pellets, Grain, beet pulp
• Hay, grass clippings
• Pieces of fruit, commercial treats
• Hay or alfalfa cubes
• Baling twine, twigs, wood shavings
• Any improperly chewed feedstuff
![Page 7: University of Tennessee College of Veterinary Medicine Department of Large Animal Clinical Sciences Esophageal Choke Horse Owners Seminar March 17, 2007](https://reader036.vdocuments.net/reader036/viewer/2022062515/56649c905503460f9494a853/html5/thumbnails/7.jpg)
University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Signs of Choke
• Excess drooling of saliva with feed material or froth from mouth
• Heavy nasal discharge with feed material and froth
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Signs of Choke
• Extend head and neck
• Restless behavior
• Difficulty swallowing
• Cough, retching
• Colic
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
What can you do?
• Call your veterinarian = Medical emergency– Damage to esophagus can lead to
scar tissue– Aspiration of fluid into lungs =
pneumonia
• Remove all feed and water
• Put in unbedded stall
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
What will your veterinary do?
• Complete physical exam
• Sedation to relax horse and lower head
• Passage of a nasogastric tube to identify obstructed location
• Lavage of esophagus with head down
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Further Examination
• Endoscopy of the esophagus– Assess damage – Better view obstruction
• Radiographs of the neck area with and without contrast
• Radiographs of the lungs
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Complicated or Severe Choke
• Hospitalization for fluid therapy and monitoring
• Anesthesia to remove object more easily
• Surgery – Last resort if object cannot be removed
or is not digestible– Incision made into esophagus
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
![Page 15: University of Tennessee College of Veterinary Medicine Department of Large Animal Clinical Sciences Esophageal Choke Horse Owners Seminar March 17, 2007](https://reader036.vdocuments.net/reader036/viewer/2022062515/56649c905503460f9494a853/html5/thumbnails/15.jpg)
University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
![Page 16: University of Tennessee College of Veterinary Medicine Department of Large Animal Clinical Sciences Esophageal Choke Horse Owners Seminar March 17, 2007](https://reader036.vdocuments.net/reader036/viewer/2022062515/56649c905503460f9494a853/html5/thumbnails/16.jpg)
University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Prognosis• Good in most cases (< 24 hours
duration)
• Depends on:– Length of time obstructing material
remains in esophagus
– Damage to esophagus
– Previous episodes
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Complications of Choke
• Dehydration
• Electrolyte imbalances
• Aspiration pneumonia
• Upper airway irritation and inflammation
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Complications of Damage to Esophagus
• Esophagitis
• Motility disorders
• Esophageal ulcers and stricture (scar tissue)
• Esophageal diverticulum – Pocket formed from stretching of
esophagus, traps food
• Esophageal rupture or tear
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Aftercare
• Gruel diet until esophagus has healed– Senior or complete feed soaked in
warm water– Small frequent meals best
• No hay or grass
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Prevention• Proper dental care
– Yearly exams and floating– More frequent in older horses
• Rapid eaters – Feed separately to avoid competition– Place large rock or salt block in bucket
• Good quality hay• Avoid grass clippings
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Prevention• Older horses or horses with previous
choke– Avoid dry pelleted feeds and beet pulp – Moisten prior to feeding.
• Avoid hay cubes or large fibrous horse treats if new to horse
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University of
Tennessee College of Veterinary Medicine
Department of Large Animal Clinical Sciences
Tennessee Lottery Winner