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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1994-11-25
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pubmed:abstractText |
This study was performed to assess the prevalence of spontaneous improvement of regional left ventricular function in patients after acute myocardial infarction, and to evaluate the role of low-dose dobutamine stress echocardiography for its prediction. In 57 patients with a first acute myocardial infarction (thrombolysis, n = 27; Q-wave, n = 49), regional wall motion was evaluated with 2-dimensional echocardiography at rest, during a low-dose dobutamine stress test performed within 1 week after hospital admission, and at 3-month follow-up. Myocardial viability was considered if there was an improvement of > or = 1 grade in dyssynergic segments from rest to low-dose dobutamine infusion; recovery of regional function was defined as an improvement of > or = 1 grade between rest and follow-up echocardiograms. Wall motion score index decreased from rest to low-dose dobutamine echocardiography (1.46 +/- 0.29 to 1.39 +/- 0.30, p < 0.0001), and this change persisted at follow-up study (1.37 +/- 0.30). No differences were found between patients who did and did not undergo thrombolyis, or between those who had Q-wave and non-Q-wave infarction. At baseline echocardiography, 189 of 627 segments were dyssynergic (85 hypokinetic, 104 akinetic). Viability at low-dose dobutamine stress echocardiography was more frequent in hypokinetic than in akinetic segments (30 of 85 vs 12 of 104, odds ratio 4.18, 95% confidence interval [CI] 1.87 to 9.48).(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0002-9149
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
74
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
853-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7977113-Dobutamine,
pubmed-meshheading:7977113-Echocardiography,
pubmed-meshheading:7977113-Female,
pubmed-meshheading:7977113-Follow-Up Studies,
pubmed-meshheading:7977113-Humans,
pubmed-meshheading:7977113-Male,
pubmed-meshheading:7977113-Middle Aged,
pubmed-meshheading:7977113-Myocardial Infarction,
pubmed-meshheading:7977113-Myocardial Stunning,
pubmed-meshheading:7977113-Predictive Value of Tests,
pubmed-meshheading:7977113-Prospective Studies,
pubmed-meshheading:7977113-Sensitivity and Specificity,
pubmed-meshheading:7977113-Time Factors,
pubmed-meshheading:7977113-Ventricular Function, Left
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pubmed:year |
1994
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pubmed:articleTitle |
Prediction of improvement of ventricular function after first acute myocardial infarction using low-dose dobutamine stress echocardiography.
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pubmed:affiliation |
Division of Cardiology, Sandro Pertini Hospital, Rome, Italy.
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Research Support, Non-U.S. Gov't
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