• Military medicine · Mar 2011

    Case Reports

    "HOOAH!" A case of pneumomediastinum in the military training environment; Hamman's sign 71 years later.

    • Ronald Jones and Leon Kundrotas.
    • 3rd MDW/MDOS, 5955 Zeamer Avenue, Elmendorf AFB, AK 99506, USA.
    • Mil Med. 2011 Mar 1; 176 (3): 352-5.

    AbstractA previously healthy 20-year-old male trainee developed chest pain, shortness of breath, and neck pain after repeatedly shouting "Hooah!" during a motivational squad competition. He was found to have developed a pneumomediastinum with soft tissue crepitus of the neck. He had an uneventful recovery. Unique to the military training environment, vigorous shouting, including "Hooah!" as a motivational stimulus, can have barotraumatic consequences. The term "spontaneous" as applied to a pneumomediastinum diagnosis is examined and the auscultatory finding of "Hamman's sign" is reviewed.

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