一种测量胸壁顺应性的针孔法。

A pinhole method for measuring chest wall compliance.

作者信息

Grant J L, Moulton D P

出版信息

J Appl Physiol Respir Environ Exerc Physiol. 1983 Apr;54(4):1157-60. doi: 10.1152/jappl.1983.54.4.1157.

DOI:10.1152/jappl.1983.54.4.1157

Abstract

We describe a method of measuring chest wall compliance (Cw) that readily detects whether respiratory muscles are relaxed. The method simulates a normal slow sigh, with the subject exhaling through a needle valve. Cw is calculated from the slope of the volume-esophageal pressure line. With relaxed subjects, repeated measurements yield similar slopes. When subjects cannot relax, the volume-pressure line is irregular and variable. In 26 subjects who could relax, Cw averaged 0.208 +/- 0.05 (SD) l/cmH2O.

摘要

我们描述了一种测量胸壁顺应性（Cw）的方法，该方法能轻易检测呼吸肌是否放松。该方法模拟正常的缓慢叹息，让受试者通过针阀呼气。Cw由容积-食管压力线的斜率计算得出。对于放松的受试者，重复测量可得到相似的斜率。当受试者无法放松时，容积-压力线不规则且变化不定。在26名能够放松的受试者中，Cw平均为0.208±0.05（标准差）升/厘米水柱。