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Observational Study
. 2024 Nov;91(11):1134-1139.
doi: 10.1007/s12098-023-04897-y. Epub 2023 Oct 31.

Plethysmograph Variability Index Values in Healthy Neonates - An Observational Pilot Study

Vindhya Narayanaswamy  1 , Ravi Shankar Swamy  1 , Venkatesh Harohalli A  1 , Karthik Nagesh N  2
Affiliations
Observational Study

Plethysmograph Variability Index Values in Healthy Neonates - An Observational Pilot Study

Vindhya Narayanaswamy et al. Indian J Pediatr. 2024 Nov.

Abstract

Objectives: To establish normative data of plethysmograph variability index (PVI), a simple non-invasive tool to measure fluid responsiveness, in neonates.

Methods: All healthy term and late preterm neonates were enrolled. PVI was recorded by pulse-oximeter on first three days of life along with other vital parameters. Data was analysed using SPSS software.

Results: The median PVI value was noted to be 21 with a wide range. The distribution of PVI did not differ according to day of life/ gestational age/ gender/ weight for gestational age. It did not significantly correlate with heart rate, gestational age or birth weight. A weak positive correlation was noted between PVI and PI (Rho = 0.157, p <0.001).

Conclusions: PVI normative data in neonates has been presented. Serial trend of PVI values is more useful than a single value in making clinical decisions.

Keywords: Late preterm; Neonates; PVI; Pulse oximeter; Term.

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