Respiratory Diseases of the Horse: A Problem-Oriented Approach to Diagnosis and Management, 1st Edition (Hardback) book cover

Respiratory Diseases of the Horse

A Problem-Oriented Approach to Diagnosis and Management, 1st Edition

By Laurent Couetil, Jan F Hawkins

CRC Press

256 pages | 350 Color Illus.

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Hardback: 9781840761863
pub: 2013-03-15
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The authors provide a problem-oriented approach to the assessment and management of respiratory illness in horses. The book deals first with the anatomy, function and clinical examination of the respiratory system, followed by discussion of diagnostic tests and procedures.

The clinical section is focused around the cardinal presenting manifestations of equine respiratory disease: coughing, nasal discharge, increased breathing efforts, respiratory noise, plus a chapter on congenital abnormalities. The text is presented systematically covering definition, etiology, pathophysiology, clinical presentation, differential diagnoses, diagnosis, management and treatment.

The book is illustrated throughout with excellent quality color photos, diagrams and algorithms. It is of lasting value to equine specialists in practice and in training, and will be a useful reference for non-specialist practitioners.

Table of Contents

Anatomy of the equine respiratory tract


Extrathoracic airways

Overview; nares and rostral nasal passages; nasal septum; conchae and paranasal sinuses; guttural pouches; nasopharynx; hard and soft palate; epiglottis; larynx; cervical trachea

Intrathoracic airways and the lungs

Tracheobronchial tree; pulmonary circulation; bronchial circulation

Pulmonary function


Respiratory muscles; lung volumes and ventilation; regional differences in ventilation


Respiratory gases; laws of diffusion; diffusion limitation; transport of gases in blood

Ventilation–perfusion relationship

Mechanics of breathing

Airflow resistance; lung elasticity; pulmonary inertance

Clinical examination

General inspection

Signalment; history; breathing pattern; nasal discharge

Physical examination

Extrathoracic airways: nose to extrathoracic trachea; intrathoracic airways and chest wall: intrathoracic trachea to alveoli

Diagnostic tests and therapeutic procedures


Dynamic endoscopy

Diagnostic imaging

Radiography; computed tomography; nuclear imaging; ultrasonography

Sampling of respiratory secretions

Tracheal wash; bronchoalveolar lavage; airway brushing

Airway and lung biopsy

Endobronchial biopsy; percutaneous lung biopsy; thoracoscopic lung biopsy


Sinus trephination



Lung function tests

Arterial blood gases; lung mechanics

Allergy tests

Aerosol therapy

Principles of aerosol therapy; aerosol delivery devices; aerolization of anti­microbials

The coughing horse


Definition; characteristics; pathophysiology

Acute cough

Viral respiratory infections; pneumonia

Chronic cough

Heaves (recurrent airway obstruction); inflammatory airway disease; parasitic pneumonitis

The horse with nasal discharge


Seromucoid nasal discharge

Rhinitis; viral infections

Mucopurulent nasal discharge

Sinus diseases; guttural pouch empyema; strangles


Exercise-induced pulmonary hemorrhage; ethmoid hematoma; guttural pouch mycosis; miscellaneous causes of epistaxis


Cleft palate; dorsal displacement of the soft palate

The horse with increased respiratory effort


Pleuropneumonia/pneumonia; heaves (recurrent airway obstruction); interstitial lung diseases; proximal airway obstruction

Abnormal respiratory sounds



Nasal diseases: atheroma; alar fold obstruction; nasal septum obstruction; nasal polyps. Pharyngeal and laryngeal diseases: dorsal displacement of the soft palate; epiglottic entrapment; epiglottic retroversion; axial deviation of the aryepiglottic folds; epiglottitis; rostral displacement of the palatopharyngeal arch; laryngeal hemiplegia; arytenoid chondritis.

Tracheal diseases: collapsing trachea; tracheal trauma; tracheal neoplasia

Abnormal lung sounds

Congenital abnormalities

Wry nose; choanal atresia; palatoschisis (cleft palate); cysts; branchial arch defects; guttural pouch tympany

Further reading


Subject Categories

BISAC Subject Codes/Headings:
MEDICAL / Veterinary Medicine / Food Animal