hamman's sign

Questions

What does hamman's sign mean?

A crunching, rasping sound, synchronous with the heartbeat, heard over the precordium in spontaneous mediastinal emphysema produced by the heart beating against air-filled tissues.

Where does hamman's sign come from?

Named after Johns Hopkins clinician Louis Hamman.

How to pronounce hamman's sign

1. Open the pronunciation page — Open the Speakur entry for “hamman's sign”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “hamman's sign”.
4. Repeat and practice — Say “hamman's sign” aloud, matching stress and vowels until it feels natural.