Abstract
Despite the increasing interest in cardiac autonomic nervous activity, the normal development is not fully understood. The main aim was to determine the maturation of different cardiac sympathetic‐(SNS) and parasympathetic nervous system (PNS) activity parameters in healthy patients aged 0.5 to 20 years. A second aim was to determine potential sex differences.
Methods and Results
Five studies covering the 0.5‐ to 20‐year age range provided impedance‐ and electrocardiography recordings from which heart rate, different PNS‐parameters (eg, respiratory sinus arrhythmia) and an SNS‐parameter (pre‐ejection period) were collected. Age trends were computed in the mean values across 12 age‐bins and in the age‐specific variances. Age was associated with changes in mean and variance of all parameters. PNS‐activity followed a cubic trend, with an exponential increase from infancy, a plateau phase during middle childhood, followed by a decrease to adolescence. SNS‐activity showed a more linear trend, with a gradual decrease from infancy to adolescence. Boys had higher SNS‐activity at ages 11 to 15 years, while PNS‐activity was higher at 5 and 11 to 12 years with the plateau level reached earlier in girls. Interindividual variation was high at all ages. Variance was reasonably stable for SNS‐ and the log‐transformed PNS‐parameters.
Conclusions
Cardiac PNS‐ and SNS‐activity in childhood follows different maturational trajectories. Whereas PNS‐activity shows a cubic trend with a plateau phase during middle childhood, SNS‐activity shows a linear decrease from 0.5 to 20 years. Despite the large samples used, clinical use of the sex‐specific centile and percentile normative values is modest in view of the large individual differences, even within narrow age bands.
| Original language | English |
|---|---|
| Article number | e017405 |
| Pages (from-to) | 1-22 |
| Number of pages | 22 |
| Journal | Journal of the American Heart Association |
| Volume | 10 |
| Issue number | 4 |
| Early online date | 2 Feb 2021 |
| DOIs | |
| Publication status | Published - 16 Feb 2021 |
Funding
The NTR study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases under grant number RO1DK092127 and the Netherlands Organization for Scientific Research under grant number 022.003.010. The study from Nederend et al. was funded by the VU University Ambulatory Monitoring System fund. MINDS-Leiden was funded by grant number 056-23-001 from the National Initiative for Brain and Cognition Research supported and coordinated by the Netherlands Organization for Scientific Research (NWO). The FemNAT-CD consortium (coordinated by Christine M. Freitag) collaborative project is funded by the European Commission under the 7th Framework Health Program with Grant Agreement no. 602407. The ABCD study was supported by the Netherlands Organization for Health Research and Development (ZonMw) and the Dutch Heart Foundation. The NTR study thanks the members of the twin families registered with The Netherlands Twin Register for continued support of scientific research. The MINDS-Leiden study thanks all families for their participation and the research assistants who contributed to the data collection. The ABCD study thanks the participating mothers and their children, and all other persons and institutions who contributed to the ABCD study: obstetric care providers, primary schools, students, and youth healthcare centers in Amsterdam, The Netherlands. Sources of Funding The NTR study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases under grant number RO1DK092127 and the Netherlands Organization for Scientific Research under grant number 022.003.010. The study from Nederend et al. was funded by the VU University Ambulatory Monitoring System fund. MINDS-Leiden was funded by grant number 056-23-001 from the National Initiative for Brain and Cognition Research supported and coordinated by the Netherlands Organization for Scientific Research (NWO). The FemNAT-CD consortium (coordinated by Christine M. Freitag) collaborative project is funded by the European Commission under the 7th Framework Health Program with Grant Agreement no. 602407. The ABCD study was supported by the Netherlands Organization for Health Research and Development (ZonMw) and the Dutch Heart Foundation.
| Funders | Funder number |
|---|---|
| Dutch Heart Foundation | |
| 7th Framework Health Program | |
| youth healthcare centers in Amsterdam | |
| ZonMw | |
| Netherlands Organization for Health Research and Development | |
| European Commission | 602407 |
| Vrije Universiteit Amsterdam | 056-23-001 |
| Netherlands Organization for Scientific Research | 022.003.010 |
| National Institute of Diabetes and Digestive and Kidney Diseases | R01DK092127 |
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