Self-induced syncope: the fainting lark: Difference between revisions

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(Created page with "''W. Wieling, J.J. van Lieshout.''<br /> ''Department of Medicine. Academic Medical Centre. University of Amsterdam. Amsterdam (The Netherlands).''<br /><br /> {{case_pres...")
 
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[[File:FaintingLark_Fig1.jpg | thumb | left | 500px | 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.]]
[[File:FaintingLark_Fig1.jpg | thumb | left | 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) [1]. 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) [1]. 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.  .  
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== References ==
== References ==
<biblio>
<biblio>
#Wieling pmid=15310717
#Wieling Parts of this case were published earlier: Wieling W, van Lieshout JJ. The fainting lark. Clin Auton Res 2002; 12: 207. We thank Springer Verlag (Darmstadt, Germany) for permitting this reproduction.
#Howard pmid=14858861
#Johnson Johnson RH, Lambie DG, Spalding JMK. Syncope without heart disease. In: Johnson RH, Lambie DG, Spalding JMK. Neurocardiology. The interrelationships between dysfunction in the nervous and cardiovascular system. WB Saunders. London 1984 pp 159-183
#Lamb pmid=13758427
#Lempert pmid=8053660
#Gastaut Gastaut H. Syncopes: generalized anoxic cerebral seizures. In: Magnus O, Haas AM eds. Handbook of clinical neurology. Vol 15. Chapter 42. Amsterdam: North Holland 1974: 815-836
#Shlamovitz pmid=12548272
#Murphy pmid=7468555
#Rumball pmid=13975507
#Chow pmid=12899159
<biblio>
<biblio>
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