Canis ISSN: 2398-2942

Trachea: foreign body

Synonym(s): Trachea: obstruction

Contributor(s): Simon Tappin

Introduction

  • Occasional problem, more often involving main stem bronchi (R>L side).
  • Cause: grass and cereal seeds, vegetation, food.
  • Signs: acute spasmodic coughing, progressing to a softer chronic cough; halitosis as foreign material decomposes; dyspnea uncommon unless trachea obstruction; exercise intolerance due to secondary pulmonary infection.
  • Diagnosis: endoscopy.
  • Treatment: bronchoscopy and forceps, or Foley catheter, removal; lung lobectomy if distal bronchial location.
  • Prognosis: good following uncomplicated removal; occasional persistent bronchiecstasis.

Pathogenesis

Etiology

  • Inhaled foreign body, eg grass seed, whole cereal head:
    • Classic history is of dog running through a corn field, returning coughing and retching.
  • Occasional inhalation of food particles on feeding.

Pathophysiology

  • Inhalation of foreign body → cough.
  • Possible secondary pulmonary infection.
  • Possible bronchiectasis Lung: bronchiectasis around foreign material → chronic coughing / recurrent infection.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Tenwolde A C, Johnson L R, Hunt G B, Vernau W & Zwingenberger A L (2010) The role of bronchoscopy in foreign body removal in dogs and cats: 37 cases (2000-2008). JVIM 24 (5), 1063-1068 PubMed.
  • Tivers M S & Hotson Moore A (2006) Tracheal foreign bodies in the cat and the use of fluoroscopy for removal: 12 cases. JSAP 47 (3), 155-159 PubMed.
  • Pratschke K M, Hughes J M L, Guerin S R, Bellenger C R (1999) Foley catheter technique for removal of a tracheal foreign body in a cat. Vet Rec 144 (7), 181-182 PubMed.
  • Brownlie S E, Davies J V & Clayton-Jones D G (1986) Bronchial foreign bodies in four dogs. JSAP 1(4), 239-245 VetMedResource.
  • Dobbie G R, Darke P G G & Head K W (1986) Intrabronchial foreign bodies in dogs. JSAP 17 (4), 227-238 VetMedResource.

Other sources of information

  • Sura P A & Durant A M (2012)Tracheobronchial foreign bodies.In:Veterinary Surgery Small Animal. Tobias K M & Johnston S A (eds). St Louis, Elsevier, Saunders, pp 1744-1745.


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