Document Detail


Comparison of baroreceptor cardiac reflex sensitivity estimates from inter-systolic and ECG R-R intervals.
MedLine Citation:
PMID:  20409009     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Baroreceptor reflex sensitivity (BRS) is frequently evaluated using the spontaneous sequence method. Many of these studies use the inter-systolic interval (ISI) derived from a blood pressure monitor (e.g., Finapres) as interbeat interval measure instead of the traditionally recommended R-R series derived from the ECG. In this study, we examine possible differences between estimates of BRS from ISI and ECG R-R intervals. BRS was evaluated in 35 participants under three conditions: rest, mental arithmetic, and recovery periods. Although correlations between the two estimates are very high (all rs>.9), small but significant differences were found: the measures from ISI systematically yield higher BRS values and result in the detection of a greater number of reflex sequences. The higher BRS values from measures of ISI are due to the effects of pulse transit time fluctuations associated with the sequences of change in blood pressure.
Authors:
Gustavo A Reyes del Paso; M Isabel González; José A Hernández
Related Documents :
16950419 - Noninvasive investigation of autonomic activity after carotid stenting or carotid endar...
19301939 - Relationship between decrease in ambulatory blood pressure and heart rate variability d...
20719579 - Acute superoxide scavenging restores depressed baroreflex sensitivity in renovascular h...
10549839 - Effect of moderate physical exercise on noninvasive cardiac autonomic tests in healthy ...
9479669 - Evidence for differential sympathetic and parasympathetic reinnervation after heart tra...
8648879 - Sympathetic hyperactivity in patients with vasospastic angina--assessment by spectral a...
20642829 - Complementary and alternative medicine in the management of hypertension in an urban ni...
8107309 - Pressor effect of recombinant human erythropoietin: results of home blood pressure meas...
3924149 - Constant mean airway pressure with different patterns of positive pressure breathing du...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Psychophysiology     Volume:  47     ISSN:  1540-5958     ISO Abbreviation:  Psychophysiology     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0142657     Medline TA:  Psychophysiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1102-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Society for Psychophysiological Research.
Affiliation:
Departamento de Psicología, Universidad de Jaén, Jaén, Spain. greyes@ujaen.es
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Use of Illumina sequencing to identify transposon insertions underlying mutant phenotypes in high-co...
Next Document:  How personal earthquake experience impacts on the Stroop interference effect: an event-related poten...