体外循环后氧输送的临界水平。

Critical level of oxygen delivery after cardiopulmonary bypass.

作者信息

Komatsu T, Shibutani K, Okamoto K, Kumar V, Kubal K, Sanchala V, Lees D E

出版信息

Crit Care Med. 1987 Mar;15(3):194-7. doi: 10.1097/00003246-198703000-00002.

DOI:10.1097/00003246-198703000-00002

Abstract

The relationship between oxygen uptake (Vo2) and delivery (Do2) was examined in 64 patients immediately after cardiopulmonary bypass. In 44 patients with lactate levels below 2.5 mmol/L, Vo2 decreased proportionally when Do2 decreased below 300 ml/min X m2. At a Do2 over this level, Vo2 plateaued at 105 +/- 13 (SD) ml/min X m2. In a contrasting group of 22 patients with blood lactate levels above 2.5 mmol/L, Vo2 changes depended on changes in Do2 both alone and below 300 ml/min X m2.

摘要

在64例患者体外循环后即刻检测了氧摄取量（Vo2）与输送量（Do2）之间的关系。在44例乳酸水平低于2.5 mmol/L的患者中，当Do2降至300 ml/min×m2以下时，Vo2成比例下降。当Do2超过该水平时，Vo2稳定在105±13（标准差）ml/min×m2。在另一组22例血乳酸水平高于2.5 mmol/L的对比患者中，Vo2的变化单独取决于Do2的变化，且在Do2低于300 ml/min×m2时也取决于Do2的变化。