caa a22 4500 463157990 CHVBK 20180406164739.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10286-007-0416-1 doi (NATIONALLICENCE)springer-10.1007/s10286-007-0416-1 Heart rate variability in children with idiopathic ventricular tachycardia [Elektronische Daten] [Bojko Bjelakovic, Goran Vukomanovic, Vladislav Vukomanovic, Ljiljana Pejcic, Ljiljana Saranac, Ljiljana Bjelakovic, Lidija Dimitrijevic] Idiopathic ventricular tachycardia (IVT) is a rare arrhythmia in children. A great deal of uncertainty and numerous questions still remain regarding the extent of investigation, therapy, and long-term prognosis for children with IVT. The existence of subclinical cardiac disease, as well as of autonomic dysfunction in patients with ventricular arrhythmias, has been well documented. A number of experimental and clinical studies have suggested that imbalances within the cardiac autonomic system's activity may be crucial in the generation of ventricular tachycardia, irrespective of the presence of cardiovascular pathological substrate. Heart rate variability (HRV) analysis provides a useful method for measuring the autonomic activity. This study evaluates HRV in children with IVT. The study included 31 children with ventricular arrhythmia who were divided into two groups: (1) patients with frequent ventricular extrasystoles (VES) and (2) patients with IVT. The control group comprised 23 healthy children without pathological findings on 24-h ECG Holter. Twenty-four-hour ambulatory electrocardiography recordings were obtained, and the time-domain variables were calculated. HRV was compared to age-related normal values. It was observed that the overall heart rate variability is diminished in children with IVT. We recommend HRV analysis of any child with IVT. Quantification of the autonomic nervous system activity using time domain analyses may be a helpful diagnostic tool in the clinical assessment and initial evaluation of these children. Springer, 2007 ventricular nationallicence tachycardia nationallicence heart rate nationallicence variability nationallicence autonomic nervous system nationallicence Bjelakovic Bojko Clinic of Pediatrics, Clinical Center Nis, Zorana Djindjica 48 Boulevard, 18000, Nis, Serbia aut Vukomanovic Goran University Children's Hospital, Belgrade, Serbia aut Vukomanovic Vladislav Mother and Child Health Institute, "Dr Vukan Cupic”, Belgrade, Serbia aut Pejcic Ljiljana Clinic of Pediatrics, Clinical Center Nis, Zorana Djindjica 48 Boulevard, 18000, Nis, Serbia aut Saranac Ljiljana Clinic of Pediatrics, Clinical Center Nis, Zorana Djindjica 48 Boulevard, 18000, Nis, Serbia aut Bjelakovic Ljiljana Clinic of Pediatrics, Clinical Center Nis, Zorana Djindjica 48 Boulevard, 18000, Nis, Serbia aut Dimitrijevic Lidija Clinic of Physical Medicine and Rehabilitation, Clinical Center Nis, Nis, Serbia aut https://doi.org/10.1007/s10286-007-0416-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10286-007-0416-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bjelakovic Bojko Clinic of Pediatrics, Clinical Center Nis, Zorana Djindjica 48 Boulevard, 18000, Nis, Serbia aut NATIONALLICENCE 700 1- Vukomanovic Goran University Children's Hospital, Belgrade, Serbia aut NATIONALLICENCE 700 1- Vukomanovic Vladislav Mother and Child Health Institute, "Dr Vukan Cupic”, Belgrade, Serbia aut NATIONALLICENCE 700 1- Pejcic Ljiljana Clinic of Pediatrics, Clinical Center Nis, Zorana Djindjica 48 Boulevard, 18000, Nis, Serbia aut NATIONALLICENCE 700 1- Saranac Ljiljana Clinic of Pediatrics, Clinical Center Nis, Zorana Djindjica 48 Boulevard, 18000, Nis, Serbia aut NATIONALLICENCE 700 1- Bjelakovic Ljiljana Clinic of Pediatrics, Clinical Center Nis, Zorana Djindjica 48 Boulevard, 18000, Nis, Serbia aut NATIONALLICENCE 700 1- Dimitrijevic Lidija Clinic of Physical Medicine and Rehabilitation, Clinical Center Nis, Nis, Serbia aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer