FORMATION OF CARBON-MONOXIDE IN ABSORBENTS

被引:0
|
作者
BAUM, J
STRAUSS, JM
机构
来源
ANASTHESIOLOGIE UND INTENSIVMEDIZIN | 1995年 / 36卷 / 09期
关键词
ANESTHESIA; INHALATION; CARBON DIOXIDE; CARBON MONOXIDE; CLOSED-CIRCUIT;
D O I
暂无
中图分类号
R614 [麻醉学];
学科分类号
100217 ;
摘要
German and British health authorities have issued warnings drawing attention to American publications reporting unexpectedly high concentrations of carboxyhaemoglobin as high as 30% and more in patients undergoing inhalation anaesthesia. American and our own studies indicate that these accidental carbon monoxide intoxications stem from a chemical reaction of the inhalation anaesthetic agents with carbon dioxide absorbants leading to the production of carbon monoxide. Such reaction occurs, in decreasing order of magnitude, for desflurane, enflurane and isoflurane, brit is only slight in the case of halothane and sevoflurane. The highest concentrations of carbon monoxide resulted when the inhalation agent reacted with absolutely dry absorbent When the latter was even only partially moist CO production decreased dramatically; absorbents with normal water content do not react with the anaesthetic agents to produce CO. Although there have been no reports of clinically relevant CO intoxication to date, care should nevertheless be taken to ensure adequate moistening of the absorbent and to avoid any measures likely to lend to its drying out.
引用
收藏
页码:237 / 240
页数:4
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