Sympathetic neurohormonal correlates of linear and symbolic dynamics heart rate variability indexes in chronic heart failure

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Abstract

The aim of this study was to assess whether in chronic heart failure patients (CHF) linear and nonlinear indexes of heart rate variability (HRV) are associated with the plasma level of norepinephrine, a measure of tonic sympathetic nervous activity. In 99 CHF patients with a 24-hour Holter recording and plasma norepinephrine assay, the absolute (LFP) and normalized (LF-nu) power in the low frequency band (LF, 0.04-0.15Hz), the percentage of 3 beats patterns with no variations (0VP) and with two unlike variations (2UVP) were computed. A significant negative association (Spearman correlation coefficient) was found between LFP and PNE (r=-0.45, p

Original languageEnglish
Title of host publicationComputers in Cardiology
Pages49-52
Number of pages4
Volume35
DOIs
Publication statusPublished - 2008
EventComputers in Cardiology 2008, CAR - Bologna, Italy
Duration: Sep 14 2008Sep 17 2008

Other

OtherComputers in Cardiology 2008, CAR
CountryItaly
CityBologna
Period9/14/089/17/08

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ASJC Scopus subject areas

  • Computer Science Applications
  • Cardiology and Cardiovascular Medicine

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