tracheal tug

tra·che·al tug

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.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
It can be diagnosed by paradoxical see-saw breathing pattern, intercostal indrawing, subcostal, sternal recession and tracheal tug. Some anaesthetists prefer to extubate at a deeper plane to prevent laryngospasm.
Within one minute of administration there was return of good strength respiratory effort (with tracheal tug and paradoxical chest wall movement) and some non-purposeful limb movement was seen.
However, after three minutes, the patient developed a tracheal tug, Sp[O.sub.2] fell to 85%, and respiratory rate rose to 56 breaths/min.
This may manifest as tracheal tug and sterno-costal recession as the child works harder to breathe, and admission to hospital should be considered.