Spectral analysis of heart rate variability in premature infants with feeding bradycardia.
作者： Sutharanam Veerappan , Harel Rosen , William Craelius , David Curcie , Mark Hiatt
DOI: 10.1203/00006450-200005000-00017
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摘要: An elevated level of baseline parasympathetic activity was noted in a group premature infants suffering from bradycardia during feeding. At approximately 34 wk post-conceptional age, the heart rates 12 with feeding (birth weight = 1539 +/- 279 g; gestational age 31.0 1.6 wk) and 10 controls 1710 304 32.0 1.4 were recorded 1 h before after EKG data digitized 3.2-min segments analyzed to determine spectral power at very low (VLF 0.003-0.03 Hz), (LF 0.03-0.39 high (HF 0.40-1.00 Hz) frequencies. In preterm bradycardia, an elevation evident feeding, as indicated by significantly higher HF lower LF/HF ratio. This may contribute observed
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