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绪论危重病人的周身氧耗量(VO_2)可作为测量心血管机能和组织灌注,并且根据Fick原理可作为计算心脏输出量的依据。而对治疗呼吸衰竭,损伤以及由于细胞代谢不完全而引起的许多病理生理疾病,VO_2也是很重要的。知道心肺系统的氧气传输及输送消耗对于外科手术及麻醉时很有用,这两个系统在很大程度上是依据组织的VO_2,看来在手术中测量VO_2会扩大临床应用。
Introduction Peripheral oxygen consumption (VO_2) in critically ill patients can be used as a measure of cardiovascular function and tissue perfusion and can be used as a basis for calculating cardiac output based on the Fick principle. VO2 is also important for the treatment of respiratory failure, injury, and many pathophysiological conditions caused by incomplete cell metabolism. Knowing that cardiopulmonary delivery and delivery of oxygen is useful for surgery and anesthesia, these two systems are largely based on tissue VO 2, and it appears that measuring VO 2 during surgery may augment clinical use.