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Self-induced syncope: the fainting lark: Difference between revisions
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Self-induced syncope: the fainting lark (view source)
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[[File:FaintingLark_Fig1.jpg | thumb | | [[File:FaintingLark_Fig1.jpg | thumb | right | 300px | Fig 1. Continuous monitoring of changes in finger blood pressure, end-tidal CO2 and cerebral blood flow velocity induced by the fainting lark in a 55 year old male. After a very short period of lightheadedness (grey area), the subject blacked out and fainted.]] | ||
The figure documents the precipitous and deep fall in arterial pressure and cerebral blood flow in one of the authors (WW) <cite>Wieling</cite>. The subject briefly (2-3 s) lost consciousness preceded by an extreme short period of light-headedness and black out. Note the overshoot in blood pressure after lying down. | The figure documents the precipitous and deep fall in arterial pressure and cerebral blood flow in one of the authors (WW) <cite>Wieling</cite>. The subject briefly (2-3 s) lost consciousness preceded by an extreme short period of light-headedness and black out. Note the overshoot in blood pressure after lying down. | ||