Publication details

Baroreflex sensitivity and a 24-hour blood pressure profiles in children and adolescents with essential hypertension.

Authors

NOVÁKOVÁ Zuzana HONZÍKOVÁ Nataša HRSTKOVÁ Hana FIŠER Bohumil VÁCLAVKOVÁ Petra

Year of publication 2000
Type Article in Periodical
Magazine / Source Scripta medica
MU Faculty or unit

Faculty of Medicine

Citation
Field Physiology
Keywords baroreflex sensitivity; spectral analysis; ambulatory blood pressure monitoring; essential hypertension; adolescents.
Description The aim of the present study was to investigate baroreflex sensitivity expressed in ms/mmHg (BRS) and Hz/mmHg (BRSf) in children and adolescents with essential hypertension. Thirty-three children and adolescents with systolic casual blood pressure (CBP) higher than 140 mmHg were examined. Ambulatory blood pressure (ABP) monitoring, BRS and BRSf measurements (spectral method; blood pressure and pulse interval recording by Finapres for 5 minutes; metronome controlled breathing at 0.33 Hz frequency) were performed in each subject. Two groups were established on the basis of 24-hour systolic ABP: A(n=17), systolic ABP higher than 125 mmHg; B(n=16), physiological ABP (systolic ABP lower than mmHg) but increased CBP. Statistically significant differences (P lower than 0.05) in BRSf, weight, height and age were found between groups A and B. BRSf is significantly decreased in children and adolescents with high systolic ABP, it may be considered a connesting link between height and blood pressure in our group.
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