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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1990-3-21
pubmed:abstractText
Fifteen patients with moderately severe and severe chronic congestive heart failure were studied to determine the central haemodynamic results of short term increases in lower body positive pressure. Central haemodynamic variables were determined by Swan-Ganz thermodilution catheterisation and arterial cannulation. Graded increases in lower body positive pressure were applied to supine patients using Medical Anti-Shock Trousers (MAST). Increasing lower body positive pressure by 25 mm Hg and 55 mm Hg caused increases in mean right atrial pressure (6.0 to 13.2 to 17.9 mm Hg; p less than 0.001 and p less than 0.0001 respectively) and mean pulmonary artery pressure (26.8 to 35.5 to 41.3 mm Hg; p less than 0.05 and p less than 0.01 respectively). No significant changes were seen in left heart filling pressures or in pulmonary vascular resistance. Furthermore, there were no significant increases in indices of cardiac work (cardiac index, left ventricular stroke work index, right ventricular stroke work index or cardiac power output) despite the increased right heart filling pressures. These results show that in patients with longstanding severe congestive heart failure, short term increases in cardiac return may increase right heart pressures but do not appear to cause either beneficial or detrimental changes in left heart haemodynamic indices.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0008-6363
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
833-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Central haemodynamic changes during lower body positive pressure in patients with congestive cardiac failure.
pubmed:affiliation
Department of Cardiovascular Medicine, University of Birmingham, East Birmingham Hospital.
pubmed:publicationType
Journal Article