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[通过静脉血中氢清除率评估犬肢体血流异质性]

[Evaluation of blood flow heterogeneity in the limbs of dogs by hydrogen clearance in venous blood].

作者信息

Zarzhetskiĭ Iu V, Volkov A V, Novoderzhkina I S

出版信息

Fiziol Zh SSSR Im I M Sechenova. 1981 Jun;67(6):859-64.

PMID:7274484
Abstract

On the basis of Fick's principle, concept of the tissue blood flow heterogeneity and H2 concentration changes in arterial blood after short-term hydrogen inhalation, a method of calculating some blood flow indices in the limbs by H2 content desaturation changes in venous blood was developed. The suggested method allows to calculate the mean regional flow rate, its compartmentation, and blood flow/tissue volume ratio for the measured components of the regional blood flow. In the limb tissue of anesthetized dogs, two components of the blood flow with the rates 0.79 +/- 0.07 and 0.12 +/- 0.01 were measured, their mean rate being 0.16 +/- 0.01 ml/min. g. The share of the "slow" component in total blood flow and tissue volume was 70 +/- 3 and 93 +/- 1 per cent respectively.

摘要

基于菲克原理、组织血流异质性概念以及短期吸入氢气后动脉血中氢气浓度变化,开发了一种通过静脉血中氢气含量去饱和变化来计算四肢某些血流指标的方法。所建议的方法能够计算平均区域血流速率、其分区情况以及区域血流测量成分的血流/组织体积比。在麻醉犬的肢体组织中,测量到血流的两个成分,速率分别为0.79±0.07和0.12±0.01,其平均速率为0.16±0.01毫升/分钟·克。“缓慢”成分在总血流量和组织体积中的占比分别为70±3%和93±1%。

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