heaves


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Related to heaves: dry heaves

heaves

(hēvz),
A condition of horses similar to chronic obstructive pulmonary disease (e.g., farmer's lung) or airway hypersensitivity (hyperreactivity) syndrome associated with asthma-type conditions in humans; horse serves as a research model. Characterized by inflammation and reduced airway elasticity around the bronchioles and alveoli; and accumulation of inspissated exudates in the small airways, with bronchiectasis, bronchospasms, smooth muscle hypertrophy and fibrosis. It reduces pulmonary function. Clinical signs include coughing, bronchitis, bronchiolitis, reduces exercise tolerance, and expiratory dyspnea that, in chronic cases, leads to a heave line on the musculature located superficially on the caudovental aspect of the abdomen.
Synonym(s): broken wind

heaves

[hēvz]
Etymology: AS, hebban, to lift
1 a chronic pulmonary disease, similar to human pulmonary emphysema, characterized by wheezing, coughing, and dyspnea on exertion. The cause of the condition is unknown.
2
Usage notes: (informal)
vomiting and retching.

heaves

see chronic obstructive pulmonary disease.

heaves line
the visible groove between the aponeurotic and muscular parts of the external oblique muscle caused by the persistent double expiratory effort, with maximum abdominal muscle input, imposed by the poor respiratory gas exchange in this disease.
Enlarge picture
Heave line in a horse with chronic obstructive pulmonary disease. By permission from Knottenbelt DC, Pascoe RR, Diseases and Disorders of the Horse, Saunders, 2003
References in periodicals archive ?
As impressive as frost heave can be, as far as buildings go, who cares about how high frost heave can go if the direction of heave is upwards?
Eventually, Wolff wants ownership of the Frost Heaves to filter into a community trust, and he plans to take advantage of the local businesses (Ben and Jerry's, for one) on the concessions.
As with the human counterpart diseases, the airways of horses afflicted with heaves become clogged with mucus or damaged by scars, and inadequate blood oxygenation depletes them of their energy.
People who live in the Southern Gulf States and on the Pacific Coast, where frost rarely penetrates the soil more than an inch or two, don't need to worry about frost heaves.