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Valsalva maneuver



The natural or induced act of attempting to forcibly exhale while the nose and mouth are closed, or against a closed glottis.


When done properly, the abdomen and chest become contracted causing the gas pressure in the thoracic cavity to rise and the return of venous blood to the heart to decrease. When the airway is reopened, the blood pressure raises, the cardiac output increases, and eventually the heart beats more slowly by reflex. The maneuver can occur naturally during coughing, defecation, or gagging.

In medicine, it is used as a diagnostic tool in patients to test their heart conditions and to identify any abnormal heart rhythms. It is also applied to 'clear' the ears and sinuses. It is also taught to patients with multiple sclerosis to help them fully empty their bladder, and in sexual therapy to help men prevent premature ejaculation.

Word origin: named after Antonio Maria Valsalva (1666-1723), an Italian physician and anatomist, who first described it.

Variant: Valsalva manoeuvre (British), Valsalva's manoeuvre

Compare: Müller maneuver
See also: Valsalva, Valsalva antonio, Valsalva test

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Help! Cutting the vagus nerve and force of contraction

... nerve that when stimulated slows down the heart rate. That's why valsalva maneuver is a no-no to those with heart ailments.

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by mcar
Sun Feb 15, 2009 12:14 pm
Forum: Human Biology
Topic: Help! Cutting the vagus nerve and force of contraction
Replies: 4
Views: 2783


... were moving from supine to standing..... this is officially called the Valsalva maneuver (for the record) Does this help or do you need more explaining? ERS

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by ERS
Mon Jan 23, 2006 12:45 am
Forum: Human Biology
Topic: dizzines
Replies: 7
Views: 4835

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