The instantaneous heart rate, ie, the reciprocal of the time interval between successive heart
beats was measured and recorded over long periods in newborn, fullterm, and premature …

Heart rate variations in long-term electrocardiographic recordings were studied in 68 normal
term and 30 premature neonates, and apneic periods were documented from two …

Patterns of instantaneous heart rate were studied in 74 premature infants with idiopathic
respiratory distress syndrome. Half (50.3%) of the recordings showed this finding during the …

Twenty-four-hour electrocardiograms were recorded in the first 10 days of life on 134 healthy
full-term infants with birthweights greater than 2.5 kg. The highest heart rate a minute …

The fetal heart beat, detected by ultrasound, was recorded for five minutes from 934
antenatal women--266 at 30 to 35 weeks' gestation and 718 at 36 to 41 weeks. Episodes of …

Beat-by-beat heart rate records from a pilot sample of ten fetuses in the last 6 weeks of
gestation show considerable differences in the pattern of heart rate variability between …

A Practical Classification of Fetal Heart Rate Patterns : Obstetrics & Gynecology A Practical
Classification of Fetal Heart Rate Patterns : Obstetrics & Gynecology ACOG.org ACOG Clinical …

Jenkins, JG, Reid, M. McC. and McClure, BG (Special Care Baby Unit, Royal Maternity
Hospital, and Department of Child Health, Queen's University, Belfast, N. Ireland). Study of …

The characteristics of fetal heart rate (FHR) patterns were reviewed in 11 cases where the
infants died either intrapartum or within eight hours of birth as a consequence of distress …

Fourier analysis was applied to episodes of high and low heart‐rate variation in the near‐
term fetus. The spectral densities of the variations in pulse intervals from 1 to 7 cycles/min …