Source:http://linkedlifedata.com/resource/pubmed/id/17098134
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
2006-11-13
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pubmed:abstractText |
Systole (S) and diastole (D) are fundamental to cardiac function, yet their durations are not routinely evaluated. We defined the S/D duration ratio in 11 children with restrictive cardiomyopathy (CM) and 31 control subjects, using tricuspid regurgitant flow duration. We correlated S/D ratio, S duration, and D duration with heart rate and compared groups. Heart rates of control subjects and patients with restrictive CM were similar (P = .995). The S/D ratio was higher in patients with restrictive CM than in control subjects (1.6 +/- 0.81 vs 0.8 +/- 0.19, P < .001) as a result of shortened D (0.43 +/- 0.13 vs 0.56 +/- 0.06, P < .01) and prolonged S (0.58 +/- 0.12 vs 0.44 +/- 0.06, P < .01). The S/D ratio was highly correlated to heart rate in restrictive CM (r = 0.95, P < .0001). The high S/D ratio found in restrictive CM, found also in dilated CM, suggests that this index is generic to heart failure rather than to a specific disease. The S/D ratio is easily measured using Doppler flow, enhancing echocardiographic assessment of D function in children.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1097-6795
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
19
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1326-31
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:17098134-Cardiomyopathy, Restrictive,
pubmed-meshheading:17098134-Diastole,
pubmed-meshheading:17098134-Echocardiography, Doppler,
pubmed-meshheading:17098134-Female,
pubmed-meshheading:17098134-Heart Failure,
pubmed-meshheading:17098134-Humans,
pubmed-meshheading:17098134-Image Interpretation, Computer-Assisted,
pubmed-meshheading:17098134-Male,
pubmed-meshheading:17098134-Retrospective Studies,
pubmed-meshheading:17098134-Systole
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pubmed:year |
2006
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pubmed:articleTitle |
The systolic to diastolic duration ratio in children with heart failure secondary to restrictive cardiomyopathy.
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pubmed:affiliation |
Division of Pediatric Cardiology, Department of Pediatrics, Lucille Packard Children's Hospital and Stanford University, Stanford, California, USA.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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