[Long-term ECG findings in children with healthy hearts].
Ambulatory monitoring of the ecg was performed in 100 healthy children aged between 6 and 16 years for the period of 24 hours. On the same day all children studied had normal standard 12 lead ecg. The maximal heart rates ranged from 96 to 176 beats and minimal rates were 36 to 79 beats per minute. Sinus arrhythmia, what we called variation of frequency, was found very often (55 per cent). A wandering atrial pacemaker occurred in 47 per cent, while true intermitted junctional rhythm (duration more than 3 beats) was seen in 20 per cent. Premature atrial beats we have seen in 11 per cent, ventricular extrasystoles occurred in 20 per cent. Sinus bradycardias were found nearly almost during sleep with a rate under 40 beats per minute in one child and under 60 beats per minute in 49 per cent. We could not find sinuatrial blocks at all. AV-Blocks I0 and II0 were seen in two children, respectively. There was a clear advantage in the diagnostic of arrhythmias with using the 24-ecg-ambulatory monitoring in comparing with the standard ecg. Further advantage of this method is it's non invasive character.
D000293:Adolescent; D000553:Ambulatory Care; D002648:Child; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods
Langzeit-EKG-Befunde bei herzgesunden Kindern.