Linked Life Data

6715936

Source:http://linkedlifedata.com/resource/pubmed/id/6715936

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1984-6-18
pubmed:abstractText
Fetal heart rate variability in an experimentally induced acute hypoxic state was investigated using chronically prepared fetal goats. FHR variability was calculated using a microcomputer with the R-R intervals of the direct fetal ECG signal measured with a peak detector. The accuracy of the peak detector was 0.1 msec. The formula for FHR variability was as follows: (Formula: see text) A fetal acute hypoxic state was induced by maternal inhalation of a gas mixture low in O2 concentration. The fetal condition was evaluated by blood gas analysis of the fetal carotid artery. In mild fetal hypoxemia due to the maternal inhalation of a gas mixture including 8-10% of O2, both STV and LTV were increased at 10-20 minutes after the beginning of the experiment. Subsequently, both were decreased at 30-40 minutes, but maintained a level higher than that of the control. When severe fetal hypoxemia was induced by the maternal inhalation of the gas mixture containing 4-6% of O2, both STV and LTV increased at 10-20 minutes after induction, then decreased to a level lower than that of the control at 30-40 minutes. No significant difference in fetal PO2 was observed between the 10-20 min. period and the 30-40 min. period of the severe hypoxemic state. But significant differences in pH and BE values were found when the 10-20 min. period and the 30-40 min. period were compared. When data showing the fetal arterial pH and BE to be significantly lower than those of the control at 30-40 min. of the severe hypoxemic state were excluded, significant negative correlations were found between PO2 and STV and between PO2 and LTV . It appeared that FHR variability, both STV and LTV , would increase during the acute hypoxemic state and that they would decrease to a level lower than that of the control after metabolic acidosis occurred due to continuing hypoxemia.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0300-9165
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
539-48
pubmed:dateRevised
2011-7-29
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
[The FHR variability of "Shiba goats" in acute hypoxic state].
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't