Key result
Children have significantly shorter atrial and A-V nodal effective and functional refractory periods compared to adults, including an AERP of 196 vs 239 msec (P<0.01).
Why the study?
Are atrial and A-V nodal effective and functional refractory periods shorter in children compared to adults?
Population
40 children, aged 7 months to 16 years, with normal P-R intervals and QRS durations, and an unspecified…
Comparison
Measurement of cardiac refractory periods using… vs Adults
Design
Cross-sectional
Authors
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Shorter refractory periods support pediatric-specific EP reference values; leaves open mechanistic and outcome implications for arrhythmia risk.
Observational (n=40)
Are atrial and A-V nodal effective and functional refractory periods shorter in children compared to adults?
Absolute Event Rate: 196% vs 239%
p-value: p=<0.01
DuBrow et al. (1975) conducted an observational in Normal P-R intervals and QRS durations (n=40). Childhood (pediatric age) vs. Adulthood (adult age) was evaluated on Atrial effective refractory period (AERP) in msec (p=<0.01). Children have significantly shorter atrial and A-V nodal effective and functional refractory periods compared to adults, including an AERP of 196 vs 239 msec (P<0.01).
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