open (redirected from open-heart)

open (o´pen)

1. not obstructed or closed.

2. exposed to the air; not covered by unbroken skin.

3. pertaining to a study in which both subjects and experimenters know which treatment is administered to each subject.

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open

1. said of tissues, cavities and lesions which are normally enclosed when they are exposed to the environment.

2. not pregnant but capable of being pregnant.

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open case

lesions which carry a heavy load of infection are exposed to the air and represent a potent source of infection for other animals, e.g. an open case of bovine tuberculosis where the cow has extensive pulmonary lesions which are open to the bronchi.

open-chest

usually refers to thoracotomy or other procedure in which there is an opening in the chest wall.

open-heart

surgery in which the heart itself is exposed.

open heels

when the heels in the horse's feet are wide apart.

open joint

the joint capsule and synovial membrane have been punctured and the synovial lining of the joint is exposed to the air.

open pen feedlot

the animals in the lot are without shelter.

open wound

one without apposition of skin edges or left without sutures, usually to allow drainage and healing by granulation.