Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1984-12-19
pubmed:abstractText
High lumbar epidural block was induced in seven dogs with 0.5% bupivacaine, causing a fall in mean arterial blood pressure (AP) from 19.2 +/- 3.2 to 10.5 +/- 3.2 kPa, owing to equal reductions in cardiac output (QT) and systemic vascular resistance (SVR). After the administration of ephedrine (a single injection of 200-300 micrograms X kg-1 b.w. followed by a continuous infusion of 10-20 micrograms X kg-1 b.w. X min-1) AP, QT and SVR rose to pre-epidural values. Furthermore, the hypokinetic circulation following the epidural block returned to normokinetic levels. Portal venous blood flow was increased from 16.5 +/- 6.2 to 25.5 +/- 4.3 ml X kg-1 b.w. X min-1 by ephedrine, while the hepatic arterial blood flow was unchanged and remained at its pre-epidural level. In spite of a slight rise in hepatic oxygen consumption from 1.2 +/- 0.4 to 1.6 +/- 0.6 ml X kg-1 b.w. X min-1, the percentages of oxygen extracted from the portal vein and the hepatic artery decreased significantly. It is concluded that ephedrine restores central and splanchnic haemodynamics in a desirable manner during high epidural anaesthesia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0001-5172
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
557-62
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Effects of ephedrine on haemodynamics and oxygen consumption in the dog during high epidural block with special reference to the splanchnic region.
pubmed:publicationType
Journal Article