Valsalva maneuverVal·salva maneuver
Origin of Valsalva maneuverafter Antonio Valsalva (1666-1723), Italian anatomist
- Expiratory effort when the mouth is closed and the nostrils are pinched shut, which forces air into the eustachian tubes and increases pressure on the inside of the eardrum.
- Expiratory effort against a closed glottis, which increases pressure within the thoracic cavity, causing decreased venous return of blood to the heart and a transient drop in blood pressure.
Origin of Valsalva maneuverAfter Antonio Maria Valsalva, (1666–1723), Italian anatomist.