. The American farmer's horse book; a pictorial cyclopedia of facts concerning the prominent breeds ... Horses. 432 THE AMERICAN FARMER S HORSE BOOK. natural. hopeless. In cows, needles have been known to work their way through the chest-walls and recovery to follow, but in these rare in- stances it could not be determined whether the heart was actually punctured or not. V. Hypertrophy (Enlargement) of the Heart. This condition is usually the result of some chronic pulmonary dis- ease, such as emphysema (see Section III of preceding chapter), or of some obstruction to the circulation of the bl
. The American farmer's horse book; a pictorial cyclopedia of facts concerning the prominent breeds ... Horses. 432 THE AMERICAN FARMER S HORSE BOOK. natural. hopeless. In cows, needles have been known to work their way through the chest-walls and recovery to follow, but in these rare in- stances it could not be determined whether the heart was actually punctured or not. V. Hypertrophy (Enlargement) of the Heart. This condition is usually the result of some chronic pulmonary dis- ease, such as emphysema (see Section III of preceding chapter), or of some obstruction to the circulation of the blood. The symptoms are an increased force of the heart-beat, shortness of breath, and general incapacity for work. The treatment will be rest, and use of Heart Tonic No. 61. VI. Atrophy of the Heart. This is the opposite of hypertrophy; the heart is smaller than It is most commonly seen in old subjects, often as a result of epizootic and blood diseases. Pressure of fat around the heart will sometimes produce it. The symptoms are weakness and debilitv, w^ith swelling of ''^'7y|/, the legs and belly, perhaps to a considerable size. But the principal diagnostic sign is the character of the pulse—soft, weak and intermittent; it may even intermit at the same time that the heart beats regularly. This trouble will, most likely, evade recognition until the postmor- tem; but if it is suspected, allow quiet and rest, and give No. 61. VII. Patty Degeneration of the Heart. This is usually found in old patients, or among animals which are over-fed and little worked. The symptoms are great weakness of the heart, and a falling off in condition, but in a majority of cases the animal falls dead without anything wrong having been suspected. VIII. Diseases of the Valves. The various valves of the heart may be diseased, most commonly those on the left side of it. When the mitral valve, that which guards the opening into the ventricle, is diseased, a bellows-like murmur is. DROPSY FROM HEART DISEA
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