In addition, performance of a valsalva manoeuvre will result in unmasking of the pseudonormal state.
2.
This led to experiments with the Valsalva manoeuvre and jugular vein pressure from which his eponymous test was published.
3.
Excessive duration and / or intensity of activities that mimic valsalva manoeuvres, " i . e . " that increase intrathoracic pressure, can cause barotrauma, and hence pregnancy ( and constipation and other causes of excessive straining ) can be a precipitating cause of Hamman's syndrome.
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