Correlation of Plethysmograph Variability Index with Inferior Vena Cava Index in Spontaneously Breathing Neonates - A Cross Sectional Study.

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

Abstract readObservational Study

In one paragraph

Observational study in Indian journal of pediatrics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

0.6field-weighted citation impact, top 30% of its field

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 2 citations in OpenAlex.

Integration of inferior vena cava measurements into routine functional echocardiography in preterm neonates. Are We There Yet?Journal of perinatology : official journal of the California Perinatal Association · 2025
Observational

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Vindhya NarayanaswamyDepartment of Neonatology, Manipal Hospital, Bangalore-560017, Karnataka, India.

Venkatesh Harohalli ADepartment of Neonatology, Manipal Hospital, Bangalore-560017, Karnataka, India.

Ravi Shankar SwamyDepartment of Neonatology, Manipal Hospital, Bangalore-560017, Karnataka, India.

Karthik Nagesh NDepartment of Neonatology, Manipal Hospital, Bangalore-560017, Karnataka, India. drkarthiknagesh@gmail.com.ORCID 0000-0002-8085-1539

Manipal Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inferior vena cava (IVC) indices are commonly used to assess the need for fluid bolus during shock. It needs expertise and is difficult to do during surgical procedures. Plethysmograph variability index (PVI) is a simpler non-invasive tool used to measure fluid responsiveness in adults. However, the data on PVI in neonates is limited. This cross-sectional observational study was done at a tertiary level NICU to correlate PVI and IVC among spontaneously breathing neonates. The PVI was documented using the Masimo Radical 7 pulse oximeter. The IVC collapsibility index (IVC CI) was determined by bedside ultrasound. The Spearman correlation coefficient was analyzed. The PVI showed strong positive correlation with IVC CI (rho = 0.64, 95% CI: 0.474-0.762) (p <0.001). Thus, PVI can be a useful tool for hemodynamic monitoring of neonates. However, further studies are needed before applying it to clinical use.

Indexed as

Fluid TherapyVena Cava, InferiorAdultCross-Sectional StudiesHumansInfant, NewbornUltrasonographyIVC collapsibility indexNeonatesPlethysmograph variability indexShock

Identifiers

PMID37428310

DOI10.1007/s12098-023-04738-y

OpenAlexW4383710535

What OpenQuestion holds

Textmetadata

Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.