Linked Life Data

7778550

Source:http://linkedlifedata.com/resource/pubmed/id/7778550

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
17
pubmed:dateCreated
1995-7-12
pubmed:abstractText
Mitral inflow and pulmonary vein inflow variables have been shown to relate to left ventricular filling pressures. However, the feasibility and accuracy of Doppler estimation of pulmonary artery (PA) occlusive pressure in the intensive care unit have not been previously assessed. Accordingly, 67 consecutive patients in intensive care units who had PA catheters underwent Doppler recordings of mitral inflow, pulmonary vein flow, and isovolumic relaxation time (IVRT). Thirty-six patients met Doppler inclusion criteria. Most exclusions were due to atrial fibrillation, merging of peak velocity during early diastole (E) and atrial contraction (A) mitral flow velocities, and inadequate recordings. Mean age (+/- SD) was 65 +/- 12 years, ejection fraction varied between 19% and 80%, and 45% of patients were on mechanical ventilation. Doppler-derived variables were related to occlusive pressure (mean 16 +/- 6 mm Hg, range 6 to 40), and the most significant variables were entered into a multiple linear regression analysis. The derived relation was tested in 30 repeat studies after a variety of hemodynamic interventions and in a prospective group of 32 additional patients (mean age 63 +/- 11.6 years, pressure range 7 to 28 mm Hg). The highest correlations with occlusive pressure were observed with the E/A ratio (r = 0.75), IVRT (r = -0.55), atrial filling fraction (r = -0.65), and deceleration time (r = -0.50). Pulmonary venous recording could be obtained in only 16% of patients. The best model was with E/A and IVRT: PA occlusive pressure = 17 + (5.3 E/A)-(0.11 IVRT), r = 0.79.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0002-9149
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1256-62
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Feasibility and accuracy of Doppler echocardiographic estimation of pulmonary artery occlusive pressure in the intensive care unit.
pubmed:affiliation
Department of Medicine, Baylor College of Medicine, Houston, Texas 77030, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.