αλλόμενος σφυγμός → water-hammer pulse, collapsing pulse, water-hammer pulseσφυγμός Κόριγκαν
Συνών: σφυγμός του Corrigan. Τυπικός σφυγμός με ταχεία άνοδο και μεγάλο εύρος στους μεγαλύτερους βαθμούς αορτικής ανεπάρκειας. Βλ. επίσης: Σφυγμός, τύποι.
http://www.incardiology.gr/lexiko/index.htmWater hammer (or, more generally, fluid hammer) is a pressure surge or wave resulting when a fluid (usually a liquid but sometimes also a gas) in motion is forced to stop or change direction suddenly (momentum change). Water hammer commonly occurs when a valve is closed suddenly at an end of a pipeline system, and a pressure wave propagates in the pipe. It may also be known as hydraulic shock.
Water hammer - WikipediaWatson's water hammer pulse, also known as Corrigan's pulse or collapsing pulse, is the medical sign which describes a pulse that is bounding and forceful, rapidly increasing and subsequently collapsing, as if it were the sound of a waterhammer that was causing the pulse. A water hammer was a Victorian toy in which a tube was half filled with fluid, the remainder being a vacuum. Each time the tube was inverted or shaken, the impact of the fluid at each end would sound like a hammer blow.
This is associated with increased stroke volume of the left ventricle and decrease in the peripheral resistance leading to the widened pulse pressure of aortic regurgitation.
Collapsing pulse - Wikipedia