A term previously used to describe injury to the middle ear or paranasal sinuses, resulting from imbalance between ambient pressure and that within the affected cavity. Now mostly used to refer to lung injury due to pressure such as occurs when a patient is on a ventilator and is subjected to high airway pressure (pulmonary barotrauma).
[G. baros, weight, + trauma]
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Examples: glitazone, GI cocktail, etc.