Water_hammer_pulse
Collapsing pulse
Medical condition
Watson's water hammer pulse, also known as Corrigan's pulse or collapsing pulse, is the medical sign (seen in aortic regurgitation) which describes a pulse that is bounding and forceful,[1] rapidly increasing and subsequently collapsing,[2] as if it were the sound of a water hammer that was causing the pulse.
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.[citation needed]