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  • Title: Increasing the dose and rate of Albunex infusion leads to superior left ventricular contrast effect.
    Author: Dolan MS, Dent J, deFilippi C, Christopher T, Wible JH, Labovitz AJ.
    Journal: J Am Soc Echocardiogr; 1998 May; 11(5):426-32. PubMed ID: 9619613.
    Abstract:
    In routine clinical use, the efficacy of Albunex in producing clinically useful opacification may be lower than in initial clinical studies. We hypothesized that increasing either the rate of injection or amount of Albunex administered would increase left ventricular opacification. Fifty adult volunteers were each injected with Albunex in five volume/rate combinations. Blinded reviewers evaluated left ventricular opacification and endocardial border delineation compared with the baseline (noncontrast) echocardiogram. In addition, captured digitized images were analyzed with video-densitometric techniques. Injected at the highest volume/rate tested (20 ml at 3.0 ml/sec), Albunex provided the greatest improvement in left ventricular opacification, endocardial border delineation, and quality of the echocardiogram. The administration of Albunex caused no serious adverse events at any volume/rate regimen tested. Our data indicate that faster injection rates and larger dose volumes than those currently recommended by the package insert significantly improve Albunex ultrasound contrast without compromising safety.
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