Article below courtesy of the Journal of the American Society of Anesthesiologists, INC:
'SOFT tissue injury is an important issue in airway management. Potential hazards are direct trauma, ranging from minor superficial laceration to perforations of trachea or esophagus, or indirect trauma by impaired mucosal blood flow. Mechanisms of injury are either the insertion process per se or high pressures exerted by the artificial airways on the mucosa of surrounding anatomical structures...'
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