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1998•The American Journal of CardiologyOpen access

Heart rate variability in inappropriate sinus tachycardia

Agustín Castellanos, Federico Moleiro, Simon Chakko, Helbert Acosta, Heikki V. Huikuri, Raul D. Mitrani, Robert J. Myerburg

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Abstract

Analysis of heart rate variability in patients with inappropriate sinus tachycardia showed a 24-hour decrease in all temporal and spectral indexes, even after attempted correction to a rate of 75 beats/min. This may have resulted from a global decrease in parasympathetic activity or from a rapid sinus rate produced by other ill-defined mechanisms.

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Analysis of heart rate variability in patients with inappropriate sinus tachycardia showed a 24-hour decrease in all temporal and spectral indexes, even after attempted correction to a rate of 75 beats/min. This may have resulted from a global decrease in parasympathetic activity or from a rapid sinus rate produced by other ill-defined mechanisms.

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Available abstract

Analysis of heart rate variability in patients with inappropriate sinus tachycardia showed a 24-hour decrease in all temporal and spectral indexes, even after attempted correction to a rate of 75 beats/min. This may have resulted from a global decrease in parasympathetic activity or from a rapid sinus rate produced by other ill-defined mechanisms.

Key concepts: Medicine, Cardiology, Internal medicine, Sinus tachycardia, Heart rate, Tachycardia, Sinus (botany), Heart rate variability

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