open heart surgery

open-heart surgery

[oh-puhn-hahrt]
noun
surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.

Origin:
1975–80

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Collins
World English Dictionary
open-heart surgery
 
n
surgical repair of the heart during which the blood circulation is often maintained mechanically

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Medical Dictionary

open heart surgery n.
Surgery in which the thoracic cavity is opened to expose the heart and the blood is recirculated and oxygenated through a heart-lung machine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
open-heart surgery  
Surgery in which the thoracic cavity is opened to expose the heart and the blood is recirculated and oxygenated by a heart-lung machine.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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