201021U. S. Special Operations Command (USSOCOM)
201021U. S. Special Operations Command (USSOCOM)
201021U. S. Special Operations Command (USSOCOM)
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BAROTRAUMA<br />
SPECIAL CONSIDERATIONS:<br />
1. Pulmonary Over-Inflation Syndrome (POIS) may occur from ascent from depth if compressed air<br />
was used or exposure to blast overpressure.<br />
2. The most commonly affected site is the middle ear and tympanic membrane, but paranasal<br />
sinuses and teeth may be affected.<br />
3. Pulmonary barotrauma occurs when compressed air is breathed at depth followed by ascending<br />
with a closed airway (i.e. breath-holding), and can cause pneumothorax or arterial gas embolism.<br />
SIGNS AND SYMPTOMS:<br />
1. Pain in the ear(s), sinuses, teeth.<br />
2. Pulmonary over-inflation syndrome may present with chest pain, dyspnea, mediastinal emphysema,<br />
subcutaneous emphysema, pneumothorax, and arterial gas embolism (AGE).<br />
.<br />
MANAGEMENT:<br />
1. Middle ear<br />
A. If a tympanic membrane rupture is present or suspected, protect the ear from water or further<br />
trauma.<br />
B. Moxifloxacin (Avelox) 400mg PO qd if contamination is suspected.<br />
C. Pseudoephedrine (Sudafed) 60mg PO q 4 – 6 hr prn<br />
D. DO NOT use ear drops.<br />
E. Refer to higher level of care when feasible.<br />
2. Paranasal Sinus barotraumas.<br />
Pseudoephedrine (Sudafed) 60mg PO q 4 - 6 hr prn<br />
Pulmonary barotraumas to include subcutaneous emphysema:<br />
A. If no respiratory distress, monitor patient closely. Use pulse oximetry if available<br />
B. If respiratory distress occurs – Treat per Spontaneous Pneumothorax Protocol.<br />
3. If arterial gas embolus is suspected, administer 100% oxygen and 1 liter normal saline IV<br />
150cc/hr. Urgent evacuation to recompression chamber. If an unpressurized airframe is used, avoid<br />
altitude exposure greater than 1000ft.<br />
4. Treat per Pain Management Protocol. (Avoid narcotics if recompression is anticipated.)<br />
DISPOSITION:<br />
1. Urgent Evacuation for cerebral arterial gas embolus or pneumothorax with respiratory distress,<br />
2. Mild to moderate middle ear, sinus, or pulmonary barotraumas without respiratory distress,<br />
observation and Routine evacuation.<br />
3. Routine evacuation for consultation for Tympanic Membrane rupture.<br />
A14<br />
Journal of <strong>Special</strong> <strong>Operations</strong> Medicine