Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-8-1
pubmed:abstractText
Pulmonary capillary pressure (Ppc), the major factor responsible for pulmonary edema, cannot be directly measured in intact subjects but may be estimated by analysis of the pressure decay profile after pulmonary artery catheter balloon inflation. We compared three different methods of pulmonary artery occlusion pressure (Ppao) decay profile analysis to estimates of Ppc derived from lymph flow measurements in halothane-anesthesized sheep. The relationship between Ppc and lymph flow was first determined by increasing Ppc by left atrial balloon inflation, and was then used to determine Ppc during pulmonary hypertension produced by infusion of a thromboxane analog. All three methods of Ppao decay profile analysis demonstrated a correlation with Ppc estimated from lymph flow. However, the method using a single exponential analysis significantly overestimated Ppc, and none of the methods reliably estimated changes in the longitudinal distribution of pulmonary vascular resistance during pulmonary hypertension. These results suggest that Ppao decay profile analysis as currently performed has limited application.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0003-2999
pubmed:author
pubmed:issnType
Print
pubmed:volume
81
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
17-23
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:7598249-15-Hydroxy-11 alpha,9..., pubmed-meshheading:7598249-Anesthesia, Inhalation, pubmed-meshheading:7598249-Animals, pubmed-meshheading:7598249-Balloon Dilation, pubmed-meshheading:7598249-Capillaries, pubmed-meshheading:7598249-Halothane, pubmed-meshheading:7598249-Heart Catheterization, pubmed-meshheading:7598249-Hypertension, Pulmonary, pubmed-meshheading:7598249-Lymph, pubmed-meshheading:7598249-Male, pubmed-meshheading:7598249-Prostaglandin Endoperoxides, Synthetic, pubmed-meshheading:7598249-Pulmonary Artery, pubmed-meshheading:7598249-Pulmonary Edema, pubmed-meshheading:7598249-Pulmonary Wedge Pressure, pubmed-meshheading:7598249-Reproducibility of Results, pubmed-meshheading:7598249-Sheep, pubmed-meshheading:7598249-Thromboxane A2, pubmed-meshheading:7598249-Vascular Resistance, pubmed-meshheading:7598249-Vasoconstrictor Agents
pubmed:year
1995
pubmed:articleTitle
Pulmonary capillary pressure measurement from pulmonary artery occlusion pressure decay profile analysis in sheep.
pubmed:affiliation
Department of Anesthesia, Stanford University School of Medicine, CA 94305, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't