Effect of beta-adrenergic blocker therapy on the circadian rhythm of heart rate variability in patients with chronic stable angina pectoris

Andrew J. Burger, Masoor Kamalesh

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

The circadian rhythm of heart rate variability is present in normal subjects and in patients with angina, with the greatest variation in the normal population and a smaller but significant variation in the anginal group. With β-adrenergic blockade, significant improvement occurs in all daytime time domain parameters, nocturnal percentage of RR intervals with ≥50-ms variation, and square root of mean-squared differences of successive RR intervals, daytime total power, and high-frequency band, representing significant improvement in parasympathetic function.

Original languageEnglish (US)
Pages (from-to)596-598
Number of pages3
JournalAmerican Journal of Cardiology
Volume83
Issue number4
DOIs
StatePublished - Feb 15 1999
Externally publishedYes

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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