Baroreflex sensitivity and body growth parameters in children
and adolescents

NOVÁKOVÁ, Zuzana, Nataša HONZÍKOVÁ, Eva ZÁVODNÁ, Hana HRSTKOVÁ and Petra VÁCLAVKOVÁ. Baroreflex sensitivity and body growth parameters in children and adolescents. Experimental and Clinical Cardiology. Canada: Pulsus Group Inc., 2001, vol. 6, No 1, p. 35-37. ISSN 0160-9289.

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TY  - JOUR
ID  - 361979
AU  - Nováková, Zuzana - Honzíková, Nataša - Závodná, Eva - Hrstková, Hana - Václavková, Petra
PY  - 2001
TI  - Baroreflex sensitivity and body growth parameters in children and adolescents
JF  - Experimental and Clinical Cardiology
VL  - 6
IS  - 1
SP  - 35
EP  - 35
PB  - Pulsus Group Inc.
SN  - 01609289
KW  - Age
KW  - Baroreflex sensitivity
KW  - Growth
KW  - Height
KW  - Spectral analysis
KW  - Weight.
N2  - OBJECTIVE:To determine the relationship between the baroreflex sensitivity expressed in ms/mmHg (BRS) and in Hz/mmHg (BRSf) and the body growth parameters. METHODS: Two hundred and one children and adolescents aged 10-21 years were examined. This population was analysed as a whole and subsequently was divided into 2 groups: group A - normotensive control (healthy, number of subjects n=154), group B - children with systolic casual blood pressure on primary diagnosis was > 140 mmHg (in 3 measurements at least one week apart, n=47). These groups were divided into subgroups according to the age. BRS and BRSf were determined by spectral analysis of blood pressure and pulse interval variability (5 minute records by Finapres, metronome controlled breathing at frequency of 0.33 Hz). The parameters of body growth (body height, weight, body mass index - BMI) were assessed. Correlation coefficient (Spearman) was calculated between pairs of all parameters (age, pulse interval - PI, BRS, BRSf, height, weight, BMI) for the whole group, groups A, B and for subgroups related to the age. RESULTS: BRS did not correlate with age; it correlated with PI in whole population, in groups A,B and also in age-related subgroups. BRS correlated only exceptionally either with weight, height and/or BMI in the oldest followed subjects (aged 17-19), but there was no correlation with the groups A,B and also with the whole study population. BRSf correlated significantly (p<0.01) with age. It was pulse interval independent for group A and also age-related subgroups. BRSf correlated with weight, height, BMI for normotensive group and for whole population, but not for age-related subgroups. CONCLUSION: BRS (which is mean pulse interval related parameter) does not correlate with age. On the contrary, BRSf (which is mean pulse interval independent) decreases with age significantly. Significant relationship between BRSf and parameters of body growth is related to the age.
ER  -

Basic information
Original name	Baroreflex sensitivity and body growth parameters in children and adolescents
Authors	NOVÁKOVÁ, Zuzana (203 Czech Republic, guarantor), Nataša HONZÍKOVÁ (203 Czech Republic), Eva ZÁVODNÁ (203 Czech Republic), Hana HRSTKOVÁ (203 Czech Republic) and Petra VÁCLAVKOVÁ (203 Czech Republic).
Edition	Experimental and Clinical Cardiology, Canada, Pulsus Group Inc. 2001, 0160-9289.

Other information
Original language	English
Type of outcome	Article in a journal
Field of Study	30105 Physiology
Country of publisher	Canada
Confidentiality degree	is not subject to a state or trade secret
Impact factor	Impact factor: 1.008
RIV identification code	RIV/00216224:14110/01:00004186
Organization unit	Faculty of Medicine
Keywords in English	Age; Baroreflex sensitivity; Growth; Height; Spectral analysis; Weight.
Tags	age, baroreflex sensitivity, growth, Height, spectral analysis, Weight.
Changed by	Changed by: MUDr. Zuzana Nováková, Ph.D., učo 2702. Changed: 22/6/2009 09:35.

Abstract

OBJECTIVE:To determine the relationship between the baroreflex sensitivity expressed in ms/mmHg (BRS) and in Hz/mmHg (BRSf) and the body growth parameters. METHODS: Two hundred and one children and adolescents aged 10-21 years were examined. This population was analysed as a whole and subsequently was divided into 2 groups: group A - normotensive control (healthy, number of subjects n=154), group B - children with systolic casual blood pressure on primary diagnosis was > 140 mmHg (in 3 measurements at least one week apart, n=47). These groups were divided into subgroups according to the age. BRS and BRSf were determined by spectral analysis of blood pressure and pulse interval variability (5 minute records by Finapres, metronome controlled breathing at frequency of 0.33 Hz). The parameters of body growth (body height, weight, body mass index - BMI) were assessed. Correlation coefficient (Spearman) was calculated between pairs of all parameters (age, pulse interval - PI, BRS, BRSf, height, weight, BMI) for the whole group, groups A, B and for subgroups related to the age. RESULTS: BRS did not correlate with age; it correlated with PI in whole population, in groups A,B and also in age-related subgroups. BRS correlated only exceptionally either with weight, height and/or BMI in the oldest followed subjects (aged 17-19), but there was no correlation with the groups A,B and also with the whole study population. BRSf correlated significantly (p<0.01) with age. It was pulse interval independent for group A and also age-related subgroups. BRSf correlated with weight, height, BMI for normotensive group and for whole population, but not for age-related subgroups. CONCLUSION: BRS (which is mean pulse interval related parameter) does not correlate with age. On the contrary, BRSf (which is mean pulse interval independent) decreases with age significantly. Significant relationship between BRSf and parameters of body growth is related to the age.

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Baroreflex sensitivity and body growth parameters in children and adolescents

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