Fractal characteristics of blood pressure and heart rate from ambulatory blood pressure monitored over 24 hours

Andrea Faini; Gianfranco Parati; Grzegorz Bilo; Marco Di Rienzo; Paolo Castiglioni

doi:10.1109/ESGCO.2014.6847525

Fractal characteristics of blood pressure and heart rate from ambulatory blood pressure monitored over 24 hours

Andrea Faini, Gianfranco Parati, Grzegorz Bilo, Marco Di Rienzo, Paolo Castiglioni

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Since devices for measuring ambulatory blood pressure (BP) noninvasively have very low sampling rates, BP fluctuations are generally quantified by simple indices of variability. Aim of this study is to describe the characteristics of a more sophisticated feature of BP variability, the fractal dimension (FD), as assessed by ambulatory BP devices in healthy volunteers. 24-hour ambulatory BP was recorded in 47 normotensive volunteers; 4-hour segments of systolic BP (SBP), diastolic BP (DBP) and heart rate (HR) were selected at daytime and nighttime. Mean (M), standard deviation (SD) and FD were calculated in each segment. While M and SD decreased from day to night, as expected, SBP FD tended to increase at night, where it was significantly greater than DBP FD. The HR FD was always significantly lower than the FD of SBP or DBP. Results suggest that FD of ambulatory BP may provide novel information on the cardiovascular control.

Original language	English
Title of host publication	2014 8th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2014
Publisher	IEEE Computer Society
Pages	73-74
Number of pages	2
ISBN (Print)	9781479939695
DOIs	https://doi.org/10.1109/ESGCO.2014.6847525
Publication status	Published - 2014
Event	2014 8th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2014 - Trento, Italy Duration: May 25 2014 → May 28 2014

Other

Other	2014 8th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2014
Country/Territory	Italy
City	Trento
Period	5/25/14 → 5/28/14

ASJC Scopus subject areas

Biomedical Engineering

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10.1109/ESGCO.2014.6847525

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Fractal characteristics of blood pressure and heart rate from ambulatory blood pressure monitored over 24 hours. / Faini, Andrea ; Parati, Gianfranco ; Bilo, Grzegorz et al.

2014 8th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2014. IEEE Computer Society, 2014. p. 73-74 6847525.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Faini, A , Parati, G , Bilo, G , Di Rienzo, M & Castiglioni, P 2014, Fractal characteristics of blood pressure and heart rate from ambulatory blood pressure monitored over 24 hours. in 2014 8th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2014., 6847525, IEEE Computer Society, pp. 73-74, 2014 8th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2014, Trento, Italy, 5/25/14. https://doi.org/10.1109/ESGCO.2014.6847525

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abstract = "Since devices for measuring ambulatory blood pressure (BP) noninvasively have very low sampling rates, BP fluctuations are generally quantified by simple indices of variability. Aim of this study is to describe the characteristics of a more sophisticated feature of BP variability, the fractal dimension (FD), as assessed by ambulatory BP devices in healthy volunteers. 24-hour ambulatory BP was recorded in 47 normotensive volunteers; 4-hour segments of systolic BP (SBP), diastolic BP (DBP) and heart rate (HR) were selected at daytime and nighttime. Mean (M), standard deviation (SD) and FD were calculated in each segment. While M and SD decreased from day to night, as expected, SBP FD tended to increase at night, where it was significantly greater than DBP FD. The HR FD was always significantly lower than the FD of SBP or DBP. Results suggest that FD of ambulatory BP may provide novel information on the cardiovascular control.",

author = "Andrea Faini and Gianfranco Parati and Grzegorz Bilo and {Di Rienzo}, Marco and Paolo Castiglioni",

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AB - Since devices for measuring ambulatory blood pressure (BP) noninvasively have very low sampling rates, BP fluctuations are generally quantified by simple indices of variability. Aim of this study is to describe the characteristics of a more sophisticated feature of BP variability, the fractal dimension (FD), as assessed by ambulatory BP devices in healthy volunteers. 24-hour ambulatory BP was recorded in 47 normotensive volunteers; 4-hour segments of systolic BP (SBP), diastolic BP (DBP) and heart rate (HR) were selected at daytime and nighttime. Mean (M), standard deviation (SD) and FD were calculated in each segment. While M and SD decreased from day to night, as expected, SBP FD tended to increase at night, where it was significantly greater than DBP FD. The HR FD was always significantly lower than the FD of SBP or DBP. Results suggest that FD of ambulatory BP may provide novel information on the cardiovascular control.

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Fractal characteristics of blood pressure and heart rate from ambulatory blood pressure monitored over 24 hours

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