Barotrauma is tissue injury caused by pressure changes. Identify two common sites affected during flight.

Barotrauma is tissue injury caused by pressure changes. Identify two common sites affected during flight.

• A. Teeth and gums
• B. Joints and muscles
• C. Ears (otitis media) and sinuses
• D. Lungs and heart

Answer: (C)

When cabin pressure changes during ascent and descent, any air-filled spaces that can’t instantly equalize are at risk of barotrauma. The ears and sinuses are the most affected because they rely on small passages to vent pressure to the surrounding air. In the middle ear, the Eustachian tube connects to the throat and normally equalizes pressure as you swallow or yawn. If the tube is blocked by congestion or swelling, the pressure difference across the eardrum grows, causing ear pain, muffled hearing, and sometimes injury to the tympanic membrane. The sinuses have narrow drainage openings that also must vent to the nasal cavity; with blocked drainage, pressure changes can trap air and cause facial pain and sinus discomfort. Teeth and gums aren’t subject to the same dynamic pressure changes, joints and muscles aren’t air-filled spaces that compress under cabin pressure, and while the lungs can be affected in specialized diving scenarios, they’re not typical sites of barotrauma in standard flight. To reduce risk, equalize frequently by swallowing, chewing gum, or performing a gentle Valsalva pressurization when safe, and address nasal congestion with appropriate relief before flying. If you have a persistent ear or sinus infection, consider delaying travel or consulting a clinician.

When cabin pressure changes during ascent and descent, any air-filled spaces that can’t instantly equalize are at risk of barotrauma. The ears and sinuses are the most affected because they rely on small passages to vent pressure to the surrounding air. In the middle ear, the Eustachian tube connects to the throat and normally equalizes pressure as you swallow or yawn. If the tube is blocked by congestion or swelling, the pressure difference across the eardrum grows, causing ear pain, muffled hearing, and sometimes injury to the tympanic membrane. The sinuses have narrow drainage openings that also must vent to the nasal cavity; with blocked drainage, pressure changes can trap air and cause facial pain and sinus discomfort.

Teeth and gums aren’t subject to the same dynamic pressure changes, joints and muscles aren’t air-filled spaces that compress under cabin pressure, and while the lungs can be affected in specialized diving scenarios, they’re not typical sites of barotrauma in standard flight. To reduce risk, equalize frequently by swallowing, chewing gum, or performing a gentle Valsalva pressurization when safe, and address nasal congestion with appropriate relief before flying. If you have a persistent ear or sinus infection, consider delaying travel or consulting a clinician.