Talk:Pulsus paradoxus

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pulsus paradoxus is a clinical sign of cardiac tamponade.On measuring the blood pressure<systoic>during expiration and inspiration, a difference of more than 10 mm Hg is observed in conditions like cardiac tamponade.Many theories have been postulated for its mechanism but is still not clear, but probably due to impaired left ventricular filling and hence decreased stroke volume.--202.79.51.59 16:51, 27 July 2006 (UTC)sridevi beriwal

[edit] Negative pressure

There is no doubt in my mind, that i completely understand what you mean with negative pressure, nevertheless in my opinion such a thing does not exist. Negative pressure means a pressure lower than normal air/atmospheric pressure.