2023 Volume 14 Issue 1 Pages 32-36
We assessed the effects of heat on the extracorporeal circuit in neonatal acute blood purification therapy. We perfused the circuit with blood heated to 36.0 ℃ at 25 ℃ and 27 ℃ room temperatures and measured the temperatures of the venous chamber and patient connections. Thereafter, an incubator was used to measure the temperatures by varying the lengths of the indwelling circuit in the incubator in the open/closed mode. Hence, the temperature decreased gradually from the venous chamber to the patient connection at both 25 ℃ and 27 ℃, but was less at 27 ℃. Generally, the incubator is used to increase the temperature gradually from the venous chamber to the patient connection, with this temperature being the highest at 35.8 ℃ and the indwelling circuit being 80 cm wide in the open mode. These findings suggest that heating the extracorporeal circuits is affected by the environmental and patient’s conditions, including the room temperature, incubator mode, and the indwelling circuit length.
