Reference values of perfusion indices in hemodynamically stable newborns during the early neonatal period |
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Authors: | Nilay Hakan Dilek Dilli Aysegul Zenciroglu Mustafa Aydin Nurullah Okumus |
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Institution: | 1. Division of Neonatology, Department of Pediatrics, Dr. Sami Ulus Maternity and Children Hospital, Ankara, Turkey 2. Division of Neonatology, Department of Pediatrics, Erzurum Training and Research Hospital, Erzurum, Turkey
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Abstract: | We aimed to determine reference values of perfusion index (PI) in healthy newborns during the early neonatal period. Preductal (right hand) and postductal (foot) PI values were assessed during the first 5 days of life by using a new generation pulse oximetry. A total of 241 newborn infants (196 81.3 %] term and 45 18.7 %] preterm) were enrolled to the study. On the first day, in term infants, the median (interquartile range IQR]) preductal and postductal PI were 1.35 (1.02–1.91) and 0.88 (0.62–1.22), respectively (p?=?0.001). These values were 0.88 (0.60–1.26) and 0.61 (0.35–0.92) in preterm infants, with the same respect (p?=?0.001). From the first to third days, preductal PI remained significantly higher than the postductal PI (p?<?0.001, for all comparisons). Both preductal and postductal PI of term newborns were significantly higher than those of preterm infants (p?<?0.001, for both comparisons). These differences in PI disappeared on the fifth day of life. Conclusion PI values which reflect peripheral perfusion seem to reach to a steady state on the fifth day of life following physiological maturation. |
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