valsalva manoeuvre


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valsalva manoeuvre

The effort to breathe out forcibly while the mouth and nose are firmly closed or the vocal cords pressed together. The valsalva manoeuvre is employed while straining at stool and in other circumstances. It causes a rise in blood pressure followed by a sharp drop and then a second sharp rise in blood pressure. This may be dangerous in people with heart disease and should be avoided. (Antonio Maria Valsalva, 1666–1723, Italian anatomist).
References in periodicals archive ?
Therefore, performing a preoperative venogram during the Valsalva manoeuvre becomes it is imperative to reveal unknown anastomosis before there is more vascular damage.
Unfortunately, the Valsalva manoeuvre or abdominal compression may be cumbersome and create discomfort to patients who are awake.
BREAST or bottle-feed a very young child during the descent because this has the same effect as the Valsalva manoeuvre, where air at cabin pressure is forced into the middle ear and sinuses.
This is called the Valsalva Manoeuvre which reintroduces air into the middle ear and sinuses.
Giving a baby a comforter, the breast or bottle has the same effect as the Valsalva Manoeuvre.
This is called the Valsalva manoeuvre and reintroduces air into the middle ear and sinuses.