Heart rate variability in children with exercise-induced idiopathic ventricular arrhythmias.

Pediatric Cardiology
Bojko BjelakovicTatjana Zaharov

Abstract

Ventricular arrhythmias (VAs) are common pediatric rhythm disorders requiring comprehensive laboratory evaluation. Although usually idiopathic, implying a benign character and favorable prognosis, the initial clinical approach is still not established in all cases. Considering their prognostic significance, exercise-induced (precipitated or aggravated) VAs usually require additional diagnostics, treatment, and follow-up. A number of reports have presented experimental and clinical evidence that increased sympathetic activity can initiate, or at least facilitate, VAs. Recent data highlight the relationship between exercise-induced idiopathic VAs (IVAs) and the long-term risk of cardiovascular death. The aim of this study was to assess the utility of heart rate variability (HRV) analysis as a noninvasive method for estimating autonomic nervous activity in children with exercise induced IVAs. The study included 42 children with IVAs, who were divided into two groups: children with exercise induced (precipitated or aggravated) IVAs and children with exercised-suppressed IVAs. Time-domain HRV parameters were analyzed from 24-h ambulatory electrocardiography recordings, and the majority of children underwent an exercise stress test u...Continue Reading

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Citations

Mar 28, 2013·Cardiology Research and Practice·Ener Cagri DinleyiciBirsen Ucar
Oct 11, 2011·Pediatric Cardiology·Jenny Alenius DahlqvistAnnika Rydberg
Jun 23, 2021·Pediatrics International : Official Journal of the Japan Pediatric Society·Emine Azak, Ibrahim Ilker Cetin

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