"Low-flow perfusion" is a method of initiating cardiopulmonary bypass while partially removing blood, maintaining the patient's own cardiac output, and approaching a state of hypothermia.

A study by Professor Shuto and colleagues at Oita University compared the results of 12 cases undergoing "low-flow perfusion" during aortic arch surgery (L group) with 12 cases undergoing conventional cardiopulmonary bypass (N group).

The results indicated that low-flow perfusion can maintain the patient's cardiac output during the cooling process and prevent cerebral embolism by avoiding atheroma disruption caused by blood flow jets.

Takashi Shuto, Hirofumi Anai, Tomoyuki Wada, Takayuki Kawashima, Kazuki Mori & Shinji Miyamoto , "Low-flow perfusion technique for shaggy aortic arch", SPRINGER LINK, Volume 72, pages 439–446(2024) (2023) https://doi.org/10.1007/s11748-023-01988-7.