OXYGEN-TRANSPORT AND TISSUE OXYGENATION IN THE CRITICALLY ILL - IMPLICATIONS FOR VOLUME THERAPY AND VASOACTIVE SUPPORT

被引:0
作者
REINHART, K
HANNEMANN, L
MEIERHELLMANN, A
机构
来源
KLINISCHE WOCHENSCHRIFT | 1991年 / 69卷
关键词
SEPSIS; ARDS; CARDIOCIRCULATORY SUPPORT; VOLUME THERAPY; INOTROPES; VASOPRESSORS; OXYGEN TRANSPORT; TISSUE OXYGENATION;
D O I
暂无
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The primary function of the cardio-respiratory system is to meet the oxygen demands of the various organs and tissues and to remove metabolic wastes. The cellular O2 supply in the critically ill patient afflicted with severe infection, sepsis or ARDS is impaired not only by reduced O2 transport to the tissue due to myocardial depression caused by inadequate preloading and depressed contractility, but also by inadequate blood flow at the regional and microcirculatory levels. To obtain adequate tissue oxygenation despite derangements of the microcirculation, it is useful to aim for a hyperdynamic circulatory state that provides a supramaximal O2 transport. The best way to achieve this goal is first to optimize cardiac filling pressures, i.e. to the upper range of normal, and then to improve cardiac output using inotropic support. Only when the arterial pressure remains too low despite these measures is the use of vasopressors indicated.
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页码:112 / 118
页数:7
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