Short term variability of fetal heart rate during insulin-dependent diabetic pregnancies

Analysis of neonatal heart rate variability by a microprocessor-based on-line system

“…With a rejection limit of five bpm, even these DI values fall within the normal range. We have collected some evidence from fetal studies that the valid information of fetal heart rate variability is in those beat-tobeat differences not exceeding five bpm [5,10,11]. Low indices of NHRV have been reported in association with idiopathic respiratory distress syndrome and prematurity [2,8].…”