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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1989-6-2
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pubmed:abstractText |
This study was undertaken to determine whether rigid-ring annuloplasty and flexible-ring annuloplasty have the same effect on left ventricular function in patients with chronic mitral regurgitation secondary to degenerative disease of the mitral valve. Twenty-five patients who underwent isolated mitral valve repair and required annuloplasty were randomized into two groups: rigid-ring and flexible-ring annuloplasty. Left ventricular function was assessed by echocardiography and radionuclide angiography on the day before operation and 2 to 3 months later. Preoperative left ventricular function was similar in the two groups of patients. Postoperatively, left ventricular end-diastolic diameter and volume decreased significantly in both groups. The left ventricular end-systolic diameter and volume decreased significantly only in patients with a flexible annuloplasty ring. Left ventricular systolic function as assessed by pressure-volume relationships was significantly better in patients with a flexible ring (p less than 0.02 by analysis of covariance), and left ventricular performance measured by stroke volume-end-diastolic volume relationships was also better in these patients (p less than 0.05 by analysis of covariance). These data indicate that patients with a flexible annuloplasty ring have better left ventricular systolic function than patients with a rigid annuloplasty ring 2 to 3 months after mitral valve reconstruction for chronic mitral regurgitation secondary to degenerative disease of the mitral valve.
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pubmed:commentsCorrections | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
|
pubmed:issn |
0003-4975
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
47
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
524-7; discussion 527-8
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:2712625-Adult,
pubmed-meshheading:2712625-Aged,
pubmed-meshheading:2712625-Chronic Disease,
pubmed-meshheading:2712625-Echocardiography,
pubmed-meshheading:2712625-Female,
pubmed-meshheading:2712625-Heart Valve Prosthesis,
pubmed-meshheading:2712625-Hemodynamics,
pubmed-meshheading:2712625-Humans,
pubmed-meshheading:2712625-Male,
pubmed-meshheading:2712625-Middle Aged,
pubmed-meshheading:2712625-Mitral Valve,
pubmed-meshheading:2712625-Mitral Valve Insufficiency,
pubmed-meshheading:2712625-Postoperative Complications,
pubmed-meshheading:2712625-Random Allocation,
pubmed-meshheading:2712625-Reoperation
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pubmed:year |
1989
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pubmed:articleTitle |
Mitral valve annuloplasty: the effect of the type on left ventricular function.
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pubmed:affiliation |
Division of Cardiovascular Surgery, Toronto Western Hospital, Ontario, Canada.
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Randomized Controlled Trial,
Research Support, Non-U.S. Gov't
|