Nothing is nor ever will be more significant in medical science, nor more necessary to it, than the observation of the pulse [1]. The characteristic pulse of aortic regurgitation (AR) is so familiar to the observation of everyone that it may perhaps be thought that its mode of origin must be so well known that there can be little room for further discussion on the subject [2]. This review article elaborates the pathogenesis, causes, clinical approach to evaluate collapsing pulse and its sensitivity and specificity .

Keywords: Collapsing Pulse; Water Hammer Pulse; Watson Pulse; Pulsus Celer; Rhazes Pulse; Al Razi Pulse; Cuming Pulse; Vieussens Pulse.