Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-8-26
pubmed:abstractText
The role of the splanchnic circulation in normal subjects during sympathoneural activation induced by stimuli which either raise (mental arithmetic, cold pressor test, isometric exercise) or maintain (head-up tilt) blood pressure has been studied by measuring superior mesenteric artery blood flow using a noninvasive Doppler ultrasound method in 18 normal subjects. Cardiac, systemic and regional haemodynamic changes were simultaneously studied. Blood pressure rose with the pressor tests and was maintained with head-up tilt. There was a significant fall in superior mesenteric artery blood flow with a rise in vascular resistance during each stimulus indicating active constriction. In six subjects, after 2 months measurements were repeated in an identical study. Superior mesenteric artery blood flow measurements in this study were closely correlated with the initial results. These changes, in a large vascular bed, are likely to be of importance in the overall haemodynamic response during sympathoneural stimuli which either raise or maintain blood pressure.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0959-9851
pubmed:author
pubmed:issnType
Print
pubmed:volume
1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
37-42
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Noninvasive quantification of superior mesenteric artery blood flow during sympathoneural activation in normal subjects.
pubmed:affiliation
Department of Medicine, St Mary's Hospital Medical School, London, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't