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, rapidly increasing and subsequently collapsing, as if it were the sound of a water hammer that was causing the pulse.

What does a collapsing pulse feel like?

Collapsing pulse can be thought of as a palpably widened pulse pressure; in the context of aortic regurgitation or PDA it is often possible to feel a markedly water hammer pulse on lifting the arm up.

What is the other name of collapsing pulse?

Watson's water hammer pulse (whp), also known as collapsing pulse, cannonball pulse or pulsus celer, is used to describe a pulse with a rapid upstroke and descent, characteristically described in aortic regurgitation.