By prof Mohamed Ghanem Upper resp tract affections in equine

1. LARYNGITIS, TRACHITIS AND BRONCHITIS
(Upper respiratory tract affection)
‫أ‬.‫د‬/‫محمد‬‫محمدي‬‫غانم‬
‫الباطنة‬ ‫األمراض‬ ‫أستاذ‬
‫الحيوان‬ ‫طب‬ ‫قسم‬ ‫ورئيس‬
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2. 2
LARYNGITIS, TRACHITIS AND
BRONCHITIS
(Upper respiratory tract affection)
 Inflammation of upper respiratory tract
characterized clinically by coughing and
inspiratory dyspnea

3. Etiology:
 1- Equine viral influenza.
 2- Equine viral arteritis.
 3- Equine herpes virus.
 4- Strangles (streptococcus equi)
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4. 4
Clinical findings
 Coughing and inspiratory dyspnea
are the two common clinical signs.
1- In the early acute stages, the cough
is usually dry non-productive and is
easily induced by grasping the larynx
and trachea.
2- In the chronic stages, the cough
may be less frequent distressing and
usually dry and harsh.

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Induction of cough (cough test) by
grasping larynx

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 3-Moist cough and thick mucous, flecks of
blood and fibrin may be coughed if the
lesions cause much exudation or
ulceration of the mucosa.
 4- Inspiratory dyspnea varies with the
degree of obstruction and is usually
accompanied by a loud stridor and harsh
breath sounds on each inspiration (these
are best heard over the trachea)

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Diagnosis
 (I) History
 (II) Clinical examination.
 (III) Endoscopic examination:
 Examination of upper respiratory tract with
fiberoptic endoscope

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Scant mucus in trachea of a healthy horse

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mucus or mucopurulent secretions in the
trachea of a horse

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Treatment
 1- Rest and avoidance of exposure to
inclement weather may resolve
spontaneously the common viral
infection.
 2- Secondary bacterial complication
must be treated with the appropriate
antibacterial agent (antibiotics or
sulfonamides)
 3- A combination of corticosteroid
(Dexamethazone) and antibiotics
therapy is of value in chronic cases

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 N.B:
 - Animals with severe
lesions and marked
inspiratory dyspnea
may require a
tracheotomy and
insertion of a
tracheotomy tube for
several days until the
lesion heals.

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ANY
QUESTION