Population
3,383 apparently healthy newborn infants studied in one region of England
Design
Cohort
Follow-up
after 12 weeks of age
Authors
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Supports transient course without intervention in most cases; leaves open need for outcome studies on neonatal ECG screening.
Disorders of cardiac rhythm and conduction occur in approximately 1% of apparently healthy newborn infants but spontaneously resolve in the majority by 12 weeks of age.
Southall et al. (1981) studied this question.
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