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Definition: 'Tracheal Tug'

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tracheal tug

Type: Term

Definitions:
1. a downward pull of the trachea, manifested by a downward movement of the thyroid cartilage, synchronous with the action of the heart and symptomatic of an aneurysm of the aortic arch; the sign is elicited most easily by drawing the cricoid cartilage upward with the thumb and forefinger while the patient sits with head thrown back and mouth closed;
2. a jerky type of inspiration seen when the intercostal muscles and the sternocostal parts of the diaphragm are paralyzed by deep general anesthesia or muscle relaxants; due to the unopposed action of the crura's pulling on the dome of the diaphragm and thence on the pericardium, lung roots, and tracheobronchial tree during each inspiration.



The information shown above for tracheal tug is provided by Stedman's.

* Stedman's, part of Lippincott Williams & Wilkins, provide a comprehensive line of health-science publications for healthcare professionals and medical students.

Medical Dictionary Copyright © 2006 Lippincott Williams & Wilkins. All rights reserved.








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