The sequence technique revised

Additional concepts on the assessment of spontaneous baroreflex function

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The sequence technique is commonly employed to estimate the baroreflex sensitivity from the analysis of systolic blood pressure (SBP) and RR Interval (RRI) recordings. Traditionally, the RRI+/SBP- and RRI-/SBP+ sequences are excluded from this analysis. In this paper we present a new interpretative model that, through the introduction of the concept of baroreflex SBP set point, proposes a sub-classification of the excluded sequences in " converging" and "diverging" types, depending on whether they point at, or, depart from the SBP set point, respectively. According to the model, also the RRI+/SBP- and RRI-/SBP+ "converging" sequences might be associated with the baroreflex control of circulation. As a first test of the model, we estimated the distribution of the "converging" and "diverging" RRI+/SBP- and RRI-/SBP+ sequences in a group of 10 healthy subjects at rest in a quiet context, where an enhancement of the baroreflex function could be assumed and a predominance of the "converging" sequences could be expected according to the model. Actually the results confirmed a significant prevalence of "converging" type over the "diverging" type sequences (10.6±6.7 vs. 3.3±2.8, mean±sd) in these recordings. Although future studies are needed to experimentally validate this new classification of the RRI+/SBP- and RRI-/SBP+ sequences, our results provide a first positive support to the model.

Original languageEnglish
Title of host publication2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Pages1703-1705
Number of pages3
DOIs
Publication statusPublished - 2010
Event2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 - Buenos Aires, Argentina
Duration: Aug 31 2010Sep 4 2010

Other

Other2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
CountryArgentina
CityBuenos Aires
Period8/31/109/4/10

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Blood pressure

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

Di Rienzo, M., Castiglioni, P., & Parati, G. (2010). The sequence technique revised: Additional concepts on the assessment of spontaneous baroreflex function. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 (pp. 1703-1705). [5626844] https://doi.org/10.1109/IEMBS.2010.5626844

The sequence technique revised : Additional concepts on the assessment of spontaneous baroreflex function. / Di Rienzo, M.; Castiglioni, P.; Parati, G.

2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. p. 1703-1705 5626844.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Di Rienzo, M, Castiglioni, P & Parati, G 2010, The sequence technique revised: Additional concepts on the assessment of spontaneous baroreflex function. in 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10., 5626844, pp. 1703-1705, 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10, Buenos Aires, Argentina, 8/31/10. https://doi.org/10.1109/IEMBS.2010.5626844
Di Rienzo M, Castiglioni P, Parati G. The sequence technique revised: Additional concepts on the assessment of spontaneous baroreflex function. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. p. 1703-1705. 5626844 https://doi.org/10.1109/IEMBS.2010.5626844
Di Rienzo, M. ; Castiglioni, P. ; Parati, G. / The sequence technique revised : Additional concepts on the assessment of spontaneous baroreflex function. 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. pp. 1703-1705
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