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Related Experiment Video

Updated: Jun 6, 2026

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice

Published on: February 14, 2021

The sequence technique revised: additional concepts on the assessment of spontaneous baroreflex function.

M Di Rienzo¹, P Castiglioni, G Parati

¹Dept. of Biomedical Technology, Fondazione Don Carlo Gnocchi ONLUS, 20148 Milano, Italy. mdirienzo@dongnocchi.it

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|November 25, 2010

Summary

The sequence technique estimates baroreflex sensitivity using blood pressure and heart rate data. This study investigates excluding specific sequences (RRI+/SBP- and RRI-/SBP+) from analysis for potentially improved accuracy.

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Area of Science:

Physiology
Cardiovascular Research
Biomedical Engineering

Background:

Baroreflex sensitivity (BRS) assessment is crucial for understanding cardiovascular regulation.
The sequence technique is widely used for BRS estimation from systolic blood pressure (SBP) and RR interval (RRI) data.
Conventional methods exclude specific RRI/SBP sequence patterns from analysis.

Purpose of the Study:

To evaluate the impact of excluding specific sequences on baroreflex sensitivity estimation.
To determine if traditional exclusion criteria affect the accuracy of BRS analysis.
To explore alternative approaches for sequence selection in BRS assessment.

Main Methods:

Analysis of systolic blood pressure (SBP) and RR interval (RRI) recordings.
Application of the sequence technique for baroreflex sensitivity (BRS) estimation.
Comparison of BRS values with and without the exclusion of RRI+/SBP- and RRI-/SBP+ sequences.

Main Results:

The study identified specific RRI/SBP sequence patterns traditionally excluded from BRS analysis.
Preliminary findings suggest that the exclusion of these sequences may influence BRS outcomes.
Further analysis is required to quantify the effect of sequence exclusion on BRS estimation.

Conclusions:

The exclusion of RRI+/SBP- and RRI-/SBP+ sequences is a standard practice in baroreflex sensitivity analysis.
The implications of this exclusion on the reliability and accuracy of BRS estimates warrant further investigation.
Refining sequence selection criteria could enhance the precision of baroreflex sensitivity measurements.