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Letters |1 May 1995

Predicting Ejection Fraction after Myocardial Infarction

Michael J. Zema

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TO THE EDITOR:
Silver and colleagues [1] describe an algorithm that uses factors derived from patient history and electrocardiographic data and that attempts to reliably identify patients with a resting LVEF of 40% or greater soon after myocardial infarction. This patient group is known to have a better prognosis, to require less initial drug therapy, and to need less specialized testing. Silver and colleagues' “prediction rule” consists of four sequential questions, all of which—if answered negatively—assure a global LVEF of 40% or greater with a predictive accuracy of 99%. Unfortunately, however, 47 of 116 patients (41%) in their “validation set”...
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Zema MJ. Predicting Ejection Fraction after Myocardial Infarction. Ann Intern Med. 1995;122:729–730. doi: 10.7326/0003-4819-122-9-199505010-00016

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Published: Ann Intern Med. 1995;122(9):729-730.

DOI: 10.7326/0003-4819-122-9-199505010-00016

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Print ISSN: 0003-4819 | Online ISSN: 1539-3704

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