Abstract
Pulsatile perfusion has been hypothesized (going back to the inception of cardiopulmonary bypass [CPB]) to be beneficial in cardiac surgery, although clinical evidence remains discordant and controversial, with very little pediatric evidence. Many arguments are based on the provision of a (supposedly) more physiologic flow pattern. Therefore, although the topic is not new, the clinical strategy and some of the end points chosen in the excellent study by Ündar and colleagues1 in this issue of The Annals of Thoracic Surgery certainly are.
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