Hamman sign

Ham·man sign

(ham'ăn),

a crunching, rasping sound, synchronous with heart beat, heard over the precordium and sometimes at a distance from the chest in mediastinal emphysema.

Hamman sign

A substernal crepitance, which is typically synchronous with the heartbeat, caused by percolation of air into the mediastinum.

Hamman sign

Physical exam A crunching sound synchronous with heartbeat, which may be heard in Pts with mediastinal emphysema, pneumopericardium

Ham·man sign

(ham'ăn sīn)

A crunching, rasping sound, synchronous with heart beat, heard over the precordium and sometimes at a distance from the chest in mediastinal emphysema Also known as Hamman crunch.
Synonym(s): Hamman murmur.

Hamman,

Louis, U.S. physician, 1877-1946.

Hamman crunch

Hamman disease - Synonym(s): Hamman syndrome

Hamman murmur - Synonym(s): Hamman sign

Hamman sign - a crunching, rasping sound, synchronous with heartbeat, heard over the precordium and sometimes at a distance from the chest in mediastinal emphysema. Synonym(s): Hamman murmur

Hamman syndrome - spontaneous mediastinal emphysema, resulting from rupture of alveoli. Synonym(s): Hamman disease

Hamman-Rich syndrome - Synonym(s): usual interstitial pneumonia of Liebow