Linked Life Data

1894962

Source:http://linkedlifedata.com/resource/pubmed/id/1894962

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1991-10-21
pubmed:abstractText
To evaluate the effect of aortic valve replacement on left ventricular function in aortic regurgitation, the ratio of end-systolic wall stress to end-systolic volume index (ESS/ESVI) and standard ejection phase indexes of left ventricular function were measured angiographically in 29 patients with isolated, chronic aortic regurgitation before and an average of 26 months after aortic valve replacement. The patients were divided into three groups based on preoperative left ventricular volume at end-systole (ESVI); 12 patients had an ESVI smaller than 100 ml/m2 (group I), 11 had an ESVI of 100 to 200 ml/m2 (group II) and 6 had an ESVI greater than 200 ml/m2 (group III). Postoperatively, end-diastolic volume index and ESVI decreased markedly in all 3 groups and end-systolic stress also decreased. Systolic pump performance assessed as ejection phase indexes improved in all groups with group I and group II showing normal or near-normal ejection fraction, while group III still had a depressed ejection fraction. Left ventricular contractile function as assessed by ESS/ESVI improved significantly in each group postoperatively. After operation, group I patients had normal values. However, both group II and group III still had a subnormal ratio, suggesting a depressed contractility despite normal or near normal systolic pump performance. Surgical correction for aortic regurgitation should be considered before a preoperative ESVI exceeds 100 ml/m2, to preserve postoperative left ventricular contractility.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0369-4739
pubmed:author
pubmed:issnType
Print
pubmed:volume
39
pubmed:owner
NLM
pubmed:authorsComplete
N
pubmed:pagination
867-75
pubmed:dateRevised
2011-7-27
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
[Timing of operation based on evaluation of postoperative left ventricular contractility in patients with aortic regurgitation].
pubmed:affiliation
First Department of Surgery, Osaka University Medical School, Japan.
pubmed:publicationType
Journal Article, English Abstract