Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1987-4-7
pubmed:abstractText
To assess the effects of nonselective vs. beta 1-selective beta-blockade on the hyperdynamic circulation induced by hydralazine, eight healthy volunteers received placebo, propranolol, 20 and 40 mg, and atenolol, 25 and 50 mg, on 5 separate days, followed by hydralazine (range 75 to 150 mg). Hydralazine decreased afterload (end-systolic wall stress) and increased venous return and left ventricular performance (by M-mode echocardiography). Both beta-blockers blunted the increases in heart rate, cardiac output, and venous return similarly, although heart rate and cardiac output were not completely normalized. Atenolol did not affect the hydralazine-induced decrease in afterload, whereas propranolol significantly opposed this change (P less than 0.03). The hyperdynamic circulation seen with hydralazine is mostly beta mediated, primarily beta 1. When given with hydralazine the two beta-blocker types differ primarily in their effects on afterload.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0009-9236
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
326-35
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Hemodynamic interaction of nonselective vs. beta-1-selective beta-blockade with hydralazine in normal humans.
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Controlled Clinical Trial, Research Support, Non-U.S. Gov't