Introduction of low-flow anesthesia. 麻醉科 R2 楊美惠 2004/11/08. The suggestion of Simionescu as: Metabolic flow = 250ml/min Minimal flow = 250-500 ml/min Low flow = 500-1000 ml/min Medium flow = 1-2 L/min High flow = 2-4 L/min Super-high flow = >4 L/min.
Fraction of uptake = 1-FA/FI
3) Cost savings
5) Improved “climate” of anesthetic gases The humidity of anesthetic gases is significantly higher in low-flow than in high-flow anesthesia, and although the specific heat of gas is low, significant reductions in heat loss by the patient can be achieved by delivering humidified gas. appropriate humidification and warming of anesthetic gases have a significant influence on the function and the morphological integrity of the ciliated epithelium of the respiratory tract.