Abstract
[Purpose] Infants/neonates tend to develop hypothermia during continuous blood purification therapy (CBP) in critical care. Blood purification device in critical care are provide either substitution fluid warming or blood warming, with ACH-Σ® (A) is the substitution fluid warming device and Prismacomfort® (PC) is the blood warming device. The warming performance of A and PC were compared in water system study using children circuits.［Methods］Tap water was recirculated in a constant-temperature water bath at 37.5℃ under the following conditions: continuous hemodialysis (CHD); without water removal; dialysate flow rate, 400 mL/h; and blood flow (QW): 10, 20, 30 mL/min. Water temperature at the outlet for blood return was measured when the warmer in A was set at off (A off) or 40℃ (A40), when PC was set at off (PC off) , 40℃ (PC40) or 43℃ (PC43), and when PC set at 43℃ was installed in the blood return circuit in A40 (hereinafter, A40 + PC43). [Results] Water temperature at the outlet for blood return was significantly higher in PC43, followed by PC40, A40 + PC43 and A40, in that order, for all values of QW. [Conclusion] In water system study using children circuits, the blood warming device showed better warming performance than the substitution fluid warming devices.
