Systolic blood pressure but not electrocardiogram QRS duration is associated with heart rate variability (HRV): a cross-sectional study in rural Australian non-diabetics
Autor: | Craig S. McLachlan, Yvonne Yin Leng Lee, Herbert F. Jelinek |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
medicine.medical_specialty
lcsh:Internal medicine Cross-sectional study Population HRV lcsh:Medicine 030209 endocrinology & metabolism 030204 cardiovascular system & hematology Conduction 03 medical and health sciences QRS complex 0302 clinical medicine Internal medicine Diabetes mellitus Internal Medicine Medicine Heart rate variability cardiovascular diseases Correlation test education lcsh:RC31-1245 Angiology education.field_of_study business.industry Research lcsh:R medicine.disease Electrocardiogram Blood pressure Systolic blood pressure Cardiology Cardiology and Cardiovascular Medicine business circulatory and respiratory physiology |
Zdroj: | Clinical Hypertension, Vol 23, Iss 1, Pp 1-8 (2017) Clinical Hypertension |
ISSN: | 2056-5909 |
Popis: | Background A positive correlation between ECG derived QRS duration and heart rate variability (HRV) parameters had previously been reported in young healthy adults. We note this study used a narrow QRS duration range, and did not adjust for systolic blood pressure. Our aims are to investigate associations between systolic blood pressure (SBP), QRS duration and HRV in a rural aging population. Methods A retrospective cross sectional population was obtained from the CSU Diabetes Screening Research Initiative data base where 200 participants had no diabetes or pre-diabetes. SBP data were matched with ECG derived QRS duration and HRV parameters. HRV parameters were calculated from R-R intervals. Resting 12-lead electrocardiograms were obtained from each subject using a Welch Allyn PC-Based ECG system. Results Pearson correlation analysis revealed no statistically significant associations between HRV parameters and QRS duration. No significant mean differences in HRV parameter subgroups across defined QRS cut-offs were found. SBP > 146 mmHg was associated with increasing QRS durations, however this association disappeared once models were adjusted for age and gender. SBP was also significantly associated with a number of HRV parameters using Pearson correlation analysis, including high frequency (HF) (p |
Databáze: | OpenAIRE |
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