Changes in Short-Term Blood Pressure Regulation in Adolescents with Type-I Diabetes Mellitus and Essential Hypertension
| Autoři | |
|---|---|
| Rok publikování | 2014 |
| Druh | Článek ve sborníku |
| Konference | Computing in Cardiology Conference, 2014 |
| Fakulta / Pracoviště MU | |
| Citace | |
| Obor | Fyziologie |
| Klíčová slova | HEART-RATE-VARIABILITY; BAROREFLEX SENSITIVITY; SPECTRAL-ANALYSIS; NEUROPATHY; MORTALITY; CHILDREN; HUMANS; RISK; RATS |
| Popis | The aim of the study was to determine the relationship behveen the variability in systolic blood pressure (SBP) and RR-intervals (RRI) with respect to the baroreflex sensitivity (BRS) in adolescents with diabetes meUitus type-I (DM-/) and essential hypertension (EH). BP was recorded in 171 adolescents (130 healthy, 22 DM-/, 16 EH, 16-20 years) for 5-min (Finapres, metronome controlled breathing at a frequency of 0.33 H:). The power spectra of SBP [mmHg^/Hz] and RRI [ms: H:] were calculated. BRS was determined by cross-spectral method. Adolescents were divided into 9 subgroups according to the RRI SBP spectral power around the frequency ofO. I H:. The limits of power were estimated as percentiles (33.3% and 66.6%). DM-I has significantly higher SBP and RRI variability but no changes in BRS in comparison to healthy: however, DM-I have in comparison with EH significantly higher BRS and RRI variability, but no significant changes in SBP variability. Significant changes in distribution of EH and DM-I in particular subgroups were found. Adolescents with DM-I are concentrated in area with high SBP and RRI variability which corresponds to the mean values of BRS. On the other hand, EH adolescents concentrate to the areas only with high SBP variability which corresponds to the low values of BRS. |