拉克、马吉尔和贝恩麻醉呼吸系统：在自主呼吸的麻醉成年患者中的直接比较。

The Lack, Magill and Bain anaesthetic breathing systems: a direct comparison in spontaneously-breathing anaesthetized adults.

作者信息

Humphrey D

出版信息

J R Soc Med. 1982 Jul;75(7):513-24. doi: 10.1177/014107688207500706.

DOI:10.1177/014107688207500706

PMID:6806473

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1437895/

Abstract

The performances of the Lack (Mapleson A), Magill (Mapleson A) and Bain (Mapleson D) anaesthetic breathing systems were compared in each of 20 anaesthetized adult patients breathing spontaneously with fresh gas flows of 70 ml kg-1 min-1. In every patient the Lack system caused the least rebreathing, as seen by the lowest inspired and end-expired CO2 tensions using capnography. The Magill caused more rebreathing than the Lack though less than the Bain. Comparative fresh gas flows for each system at the point where rebreathing started to occur were examined in 10 further patients. The Lack system required approximately 51 ml kg-1 min-1, the Magill 72 ml kg-1 min-1 while the Bain required 153 ml kg-1 min-1. Of the three systems the Lack is concluded to be the most efficient and economical system for spontaneous respiration in adults, with the additional advantages of convenient access to the exhaust valve, easy scavenging and low expiratory resistance. In addition, it also offers many useful advantages over the circle absorber system.

摘要

在20名自主呼吸的成年麻醉患者中，比较了Lack（Mapleson A）、Magill（Mapleson A）和Bain（Mapleson D）麻醉呼吸系统的性能，新鲜气流为70 ml·kg⁻¹·min⁻¹。通过二氧化碳描记法测量吸入和呼气末二氧化碳分压，发现Lack系统在每位患者中导致的重复呼吸最少。Magill系统导致的重复呼吸比Lack系统多，但比Bain系统少。另外10名患者中研究了每个系统开始出现重复呼吸时的比较新鲜气流。Lack系统需要约51 ml·kg⁻¹·min⁻¹，Magill系统需要72 ml·kg⁻¹·min⁻¹，而Bain系统需要153 ml·kg⁻¹·min⁻¹。在这三种系统中，Lack系统被认为是成人自主呼吸中最有效和最经济的系统，此外还具有便于接近排气阀、易于清除废气和呼气阻力低等优点。此外，与环路吸收器系统相比，它还具有许多有用的优势。