Lungworm infection

Buy now to access the full article, existing subscribers login

Sections available in full article Introduction, Presenting signs, Geographic incidence, Pathogenesis, Etiology, Predisposing factors, Pathophysiology, Timecourse (incubation, duration), Epidemiology (population dynamics), Diagnosis, Presenting problems, Client history, Clinical signs, Diagnostic investigation, Confirmation of diagnosis, Gross autopsy findings, Histopathology findings, Differential diagnosis, Treatment, Initial symptomatic treatment, Monitoring, Prevention, Control, Prophylaxis, Group eradication, Sequelae, Prognosis, Sources, Publications, Vetstream contributor(s),
Contributors Vetstream Ltd
Dr Sheelagh Lloyd MVB PhD MRCVS
Dr Timothy Mair BVSc PhD DEIM DESTS DipECEIM MRCVS
Synonyms Dictyocaulus, D. arnfieldi

Introduction

  • Cause : Dictyocaulus arnfieldi  Dictyocaulus arnfieldi  - occasional cause of parasitic bronchitis in horses co-grazing with donkeys.
  • Signs : chronic cough especially during exercise; poor condition.
  • Rarely causes clinical signs in donkeys.
  • Diagnosis : recovery of D. arnfieldi larvae from feces  Feces: parasitology  or endoscopy  Respiratory: endoscopy  /tracheal wash  Trachea: tracheal wash  .
  • Treatment :
    • USA : ivermectin, mebendazole.
    • UK : ivermectin, menbendazole, thiabendazole, fenbendazole, levamisole.
  • Prognosis : good.

Diagnosis

Clinical signs

  • May be none.
  • Coughing  Coughing   - often paroxysmal.
  • Increased respiratory rate and adventitious lung sounds  Thorax: auscultation  .
  • Obstructive breathing pattern - prolonged expiratory phase.
  • Clinical signs often resemble RAO  Lung: recurrent airway obstruction (RAO)  .

Diagnosis

Differential diagnosis

  • Equine viral respiratory diseases.
  • Bronchopneumonia.
  • Recurrent airway obstruction (RAO)  Lung: recurrent airway obstruction (RAO)  .
  • Migrating Parascaris equorum  Parascaris equorum infestation  in foals (rare).
  • Tracheal/bronchial/pulmonary neoplasia  Respiratory: neoplasia  .

Sequelae

Prognosis

  • Good to excellent.

Sources

Publications

Refereed papers

  • Recent references from PubMed.

Sample content only, to unlock the full article login or buy now

Loading...