American heart journal
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American heart journal · Aug 2006
ST-segment depression in non-ST elevation acute coronary syndromes: quantitative analysis may not provide incremental prognostic value beyond comprehensive risk stratification.
It is unclear whether quantitative ST-segment assessment can improve risk stratification of unselected acute coronary syndrome (ACS) patients using the validated Global Registry of Acute Cardiac Events (GRACE) risk model. ⋯ Greater ST down is associated with other adverse prognosticators across the broad spectrum of non-ST-elevation ACS. Although the presence of any ST down is an independent predictor of 1-year mortality, its quantitative assessment is not as important as its mere presence when studied on the background of comprehensive clinical and biomarker evaluation in a nonclinical trial-based ACS population.
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American heart journal · Jul 2006
Review Meta Analysis Comparative StudyGlycemic control and macrovascular disease in types 1 and 2 diabetes mellitus: Meta-analysis of randomized trials.
Uncertainty persists concerning the effect of improved long-term glycemic control on macrovascular disease in diabetes mellitus (DM). ⋯ Our data suggest that attempts to improve glycemic control reduce the incidence of macrovascular events both in type 1 and type 2 DM. In absolute terms, benefits are comparable, although effects on specific manifestations of macrovascular disease differ.
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American heart journal · Jul 2006
Randomized Controlled Trial Multicenter Study Comparative StudyEffect of teaching and type of stethoscope on cardiac auscultatory performance.
Auscultation of the heart is a routine procedure. It is not known whether auscultatory skills can be improved by teaching or with the use of an advanced stethoscope. ⋯ Heart auscultation findings were in poor accordance with echocardiographic findings and had high interobserver variation. Neither outcome improved to any important extent with the subjects' use of an advanced stethoscope or attending of a course in heart auscultation.
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American heart journal · Jul 2006
Review Historical ArticleCurrent status of the total artificial heart.
Although heart transplantation remains the gold standard for patients who remain in advanced heart failure despite optimal medical therapy, limited donor supplies allows for just >2000 transplant each year in the United States. Recent enthusiasm has developed for the role of mechanical circulatory support for this ever-growing population of sick patients. ⋯ Indeed, efforts in this latter technology have allowed the relatively recent deployment of a variety of complete circulatory assist devices. The purpose of this article is to review the historical development, current use, and future role of total artificial hearts.