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

Vindhya Narayanaswamy; Ravi Shankar Swamy; Venkatesh Harohalli A; Karthik Nagesh N

doi:10.1007/s12098-023-04897-y

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

Indian J Pediatr. 2023 Oct 31. doi: 10.1007/s12098-023-04897-y. Online ahead of print.

Authors

Vindhya Narayanaswamy¹, Ravi Shankar Swamy¹, Venkatesh Harohalli A¹, Karthik Nagesh N²

Affiliations

¹ Department of Neonatology, Manipal Hospital, Bangalore, Karnataka, 560017, India.
² Department of Neonatology, Manipal Hospital, Bangalore, Karnataka, 560017, India. drkarthiknagesh@gmail.com.

PMID: 37906394
DOI: 10.1007/s12098-023-04897-y

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.