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January 1, 2004Clinical and Experimental Hypertension

Determination of Baroreceptor‐Stroke Volume Reflex Sensitivity by Power Spectral Analysis: A Quantitative Probe of Baroreceptor‐Cardiac Reflex

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Why the study?

Does baroreceptor-stroke volume reflex sensitivity correlate with baroreceptor-heart rate reflex sensitivity in healthy subjects?

Population

14 healthy subjects

Comparison

Measurement of baroreceptor-stroke volume reflex… vs Measurement of baroreceptor-heart rate reflex…

Design

Cross-sectional

Key result

Baroreceptor-stroke volume reflex sensitivity correlated significantly with baroreceptor-heart rate reflex sensitivity (r = 0.73, p < 0.0001) in healthy subjects.

Authors

TYTomiya YasumasuKTKazuo TakaharaHAHaruhiko Abe

Discussion

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Overview

SV baroreflex sensitivity may enable baroreflex assessment in paced patients; leaves open validation in larger prospective studies.

Study Design

Type

Cross-Sectional (n=14)

Structured PICO

Does baroreceptor-stroke volume reflex sensitivity correlate with baroreceptor-heart rate reflex sensitivity in healthy subjects?

P
Population
14 healthy subjects evaluated for baroreceptor-stroke volume reflex sensitivity.
E
Exposure
Measurement of baroreceptor-stroke volume (SV) reflex sensitivity expressed as ratio of low frequency (LF) power to total power of SV fluctuation (LF/TP(SV)) by spectral analysis
C
Comparator
Measurement of baroreceptor-heart rate reflex sensitivity
O
Outcome
Correlation between baroreceptor-SV reflex sensitivity and baroreceptor-heart rate reflex sensitivitysurrogate

Main Result

Effect estimate: r = 0.73

p-value: p=< 0.0001

Baroreceptor-stroke volume reflex sensitivity correlates significantly with baroreceptor-heart rate reflex sensitivity, suggesting it could be a useful index of baroreceptor-cardiac reflex in patients with chronotropic incompetence or implanted pacemakers.

Cite This Study

Yasumasu et al. (2004) conducted a cross-sectional in Healthy (n=14). Baroreceptor-stroke volume reflex sensitivity measurement vs. Baroreceptor-heart rate reflex sensitivity was evaluated on Correlation between baroreceptor-stroke volume reflex sensitivity and baroreceptor-heart rate reflex sensitivity (r = 0.73, p=< 0.0001). Baroreceptor-stroke volume reflex sensitivity correlated significantly with baroreceptor-heart rate reflex sensitivity (r = 0.73, p < 0.0001) in healthy subjects.

synapsesocial.com/papers/6a6a1d2d1997ff8660f1d991https://doi.org/10.1081/ceh-120028555
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