Valsalva maneuver

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Val·sal·va maneuver

 (văl-săl′və, väl-säl′vä)
1. 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.
2. 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.

[After Antonio Maria Valsalva (1666-1723), Italian anatomist.]

Val•sal′va maneu`ver

(vælˈsæl və)
an attempt to expel air against a closed glottis or closed lips and nostrils, used for adjusting pressure in the middle ear.
[after Antonio M. Valsalva (1666–1723), Italian anatomist who devised it]
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References in periodicals archive ?
Effects of a brief Valsalva manoeuvre on hemodynamic response to strength exercises.
In this test, subject was made to perform valsalva manoeuvre in sitting posture for 15 s by blowing against closed glottis through a mouthpiece attached to manometer and maintained an expiratory pressure of 40 mm of Hg for 15 s.
The palpitations were still happening and I was now becoming increasingly anxious, as my usual tricks of gulping down copious amounts of water and trying a covert Valsalva manoeuvre had failed to stop the irregular beats.
headache precipitated by physical exertion or Valsalva manoeuvre (such as coughing, laughing and straining)
Postural modification to the standard Valsalva manoeuvre for emergency treatment of supraventricular tachycardias (REVERT): a randomised controlled trial.
Transthoracic echocardiography using second harmonic imaging with Valsalva manoeuvre for the detection of right to left shunts.
The lesions became prominent with Valsalva manoeuvre and erect position.
Finally, during the Valsalva manoeuvre, 1 mL of air was injected, followed by 3 mL of 3% ethoxysclerol (air-block technique).
Autonomic cardiovascular tests like the heart rate response to Valsalva manoeuvre, deep breathing and standing and the blood pressure response to standing are also used to study autonomic function in OSA.
There was mild increase in the size of the swelling during Valsalva manoeuvre and during laughing.
Soares, "Impaired autonomic control of heart interval changes to Valsalva manoeuvre in Chagas' disease without overt manifestation.
Most cases were related to activities that resulted in a prolonged Valsalva manoeuvre such as coughing, strenuous sport, or the use of inhaled drugs such as cocaine and marijuana (10%).