Canis ISSN: 2398-2942

Stomach: foreign body

Synonym(s): Gastric FB

Contributor(s): James Simpson, Kenneth Simpson

Introduction

  • Recovery of gastric foreign bodies is the most common indication for gastrotomy. Surgical recovery should only be considered where conservative management is inappropriate or endoscopic retrieval has failed.
  • Signs:
    • Asymptomatic.
    • Vomiting (acute/chronic).
    • May be incidental finding during investigation for other diseases.
  • Weight loss may occur in chronic cases.
  • Diagnosis: history, signs, radiography or gastroscopy.
  • Treatment: not all gastric foreign bodies require removal.
  • Prognosis: generally very good.

Pathogenesis

Predisposing factors

General
  • Some dogs are 'stone chewers' or ball chasers and may repeatedly swallow these objects.
  • Greedy dogs with scavenging habits may repeatedly get bone foreign bodies.

Pathophysiology

  • Asymptomatic:
  • Acute vomiting:
  • Chronic vomiting: Intermittent vomiting:
    • Movement of foreign body in and out of pylorus.
  • Signs of zinc or lead toxicity if these FBs are ingested.

Timecourse

  • Hours arrow: weeks (depends on type/position FB).

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Evans K L, Smeak D D & Biller D S (1994) Gastrointestinal linear foreign bodies in 32 days - a retrospective evaluation and feline comparison. JAAHA 30 (5), 445-450 AGRIS FAO.

Other sources of information

  • Twedt D C (1992)Vomiting.In:Veterinary Gastroenterology. N V Anderson (ed), Lea & Febiger, Philadelphia. p 336.


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