下腔静脉压力作为中心静脉压的一种估计指标。

Inferior vena cava pressure as an estimate of central venous pressure.

作者信息

Yung M, Butt W

机构信息

Intensive Care Unit, Royal Children's Hospital, Parkville, Victoria, Australia.

出版信息

J Paediatr Child Health. 1995 Oct;31(5):399-402. doi: 10.1111/j.1440-1754.1995.tb00846.x.

DOI:10.1111/j.1440-1754.1995.tb00846.x

PMID:8554858

Abstract

OBJECTIVE

To determine whether pressure in the inferior vena cava (IVC) is similar to central venous pressure.

METHODOLOGY

Prospective measurement of both central venous pressure (CVP) and inferior vena cava pressure (IVCP) in the same child; each child had to have both catheters in situ. Two measurements of each pressure in reverse order (IVCP then CVP, and CVP then IVCP) were done and the mean of each was recorded. Comparison of the pressures was performed using the method of Bland and Altman.

RESULTS

Thirty-nine children had pressures recorded. The CVP ranged from 3 to 17 mmHg. In 22 of 39 measurements IVCP was equal to CVP; in 33 of 39 measurements IVCP was different from CVP by 1 mm or less and in 37 of 39 measurements IVCP was different from CVP by 2 mm or less. The mean difference between IVCP and CVP was +0.33 mmHg, the 95% confidence interval was 2.26 to +2.93 mmHg.

CONCLUSION

Measurement of IVCP is a good approximation to CVP and can be routinely used in clinical care of children who do not have raised intra-abdominal pressure.

摘要

目的

确定下腔静脉（IVC）压力是否与中心静脉压相似。

方法

对同一儿童进行中心静脉压（CVP）和下腔静脉压（IVCP）的前瞻性测量；每个儿童必须同时留置两根导管。以相反顺序对每个压力进行两次测量（先IVCP后CVP，以及先CVP后IVCP），并记录每个测量值的平均值。使用布兰德-奥特曼方法对压力进行比较。

结果

记录了39名儿童的压力。CVP范围为3至17 mmHg。在39次测量中的22次，IVCP等于CVP；在39次测量中的33次，IVCP与CVP相差不超过1 mm，在39次测量中的37次，IVCP与CVP相差不超过2 mm。IVCP与CVP之间的平均差值为+0.33 mmHg，95%置信区间为-2.26至+2.93 mmHg。