Transcutaneous and arterial carbon dioxide tension at various conditions of fetal stress in lambs.

Abstract:

:In an acute fetal lamb model the relation between arterial PCO2 (PaCO2), transcutaneous PCO2 (tcPCO2) and pH was studied at different conditions of stress. Occlusion of the maternal common iliac artery for 8 min, umbilical cord obstruction for 5 min and placental embolization were performed subsequently, every time with an interval of 1 h for fetal recuperation. During the first 2 experiments arterial values changed rapidly after occlusion and returned nearly to normal within 30-60 min after the end of occlusion. TcPCO2 started to increase several minutes after occlusion and reached its maximum about 5 min after the end of occlusion. Afterwards a gradual decrease towards the onset value was observed. During placental embolization tcPCO2 did not increase until 15 min before fetal death. It is concluded that tcPCO2 can follow a gradual trend, but not quick changes in PaCO2.

journal_name

Gynecol Obstet Invest

authors

Bergmans MG,Stevens GH,Keunen H,Hasaart TH

doi

10.1159/000291808

subject

Has Abstract

pub_date

1997-01-01 00:00:00

pages

1-5

issue

1

eissn

0378-7346

issn

1423-002X

journal_volume

43

pub_type

杂志文章
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    pub_type: 杂志文章

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    pub_type: 杂志文章

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  • Human chorionic gonadotropin in cervicovaginal secretions as a predictor of preterm birth.

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    pub_type: 临床试验,杂志文章,随机对照试验

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    pub_type: 杂志文章

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