Key result
Electrocardiographic recordings in healthy newborns during their first week of life revealed extreme heart rate fluctuations, frequent arrhythmias, and signs of right ventricular hypertrophy.
Population
56 healthy children during their first week of life
Design
Cohort
Follow-up
first week of life
Authors
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These ECG patterns likely represent normal variants; hypothesis-generating for neonatal norms and should not yet change practice.
Observational (n=56)
Healthy newborns frequently exhibit extreme heart rate fluctuations, benign arrhythmias, signs of right ventricular hypertrophy, and dynamic repolarization changes during their first week of life.
Magnus Michaëlsson (1959) conducted an observational in Healthy newborn (n=56). Electrocardiographic recordings was evaluated on Electrocardiographic findings. Electrocardiographic recordings in healthy newborns during their first week of life revealed extreme heart rate fluctuations, frequent arrhythmias, and signs of right ventricular hypertrophy.
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