Valsalva manoeuvre
/vælˈsælvə/noun
- Medicine the action of attempting to exhale with the nostrils and mouth, or the glottis, closed. This increases pressure in the middle ear and the chest, as when bracing to lift heavy objects, and is used as a means of equalizing pressure in the ears【医】瓦尔萨尔瓦氏操作（法）, 咽鼓管充气检查（法）。
词源
late 19th cent.: named after Antonio M. Valsalva （1666-1723）, Italian anatomist.