Evidence map›Paper›PMID 33184496›Full record

Observational studyPediatric research2021

Post-hemorrhagic ventricular dilatation: inter-observer reliability of ventricular size measurements in extremely preterm infants.

Lara M Leijser, James N Scott, Smita Roychoudhury, Hussein Zein, Prashanth Murthy, Sumesh P Thomas, Khorshid Mohammad, Calgary Neonatal Neuro-Critical Care Program

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Pediatric research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
4.6field-weighted citation impact, top 5% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Evaluation of nationwide variation in post-haemorrhagic ventricular dilatation management following national guideline implementation in the Netherlands.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
    Article
  3. Implementation of an early intervention strategy for post hemorrhagic ventricular dilatation in preterm infants.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Observational
  4. Neurodevelopmental impairment in preterm infants following progressive post-hemorrhagic ventricular dilatation.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Prediction of short- and long-term outcomes using pre-operative ventricular size in infants with post-hemorrhagic ventricular dilation.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Article
  10. Ratios of head circumference to ventricular size vary over time and predict eventual need for CSF diversion in intraventricular hemorrhage of prematurity.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
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

8 authors at 2 institutions in 1 country.

Lara M LeijserSection of Neonatology, Department of Pediatrics, University of Calgary, Calgary, AB, Canada. lara.leijser@ucalgary.ca.
James N ScottDepartment of Diagnostic Imaging, University of Calgary, Calgary, AB, Canada.
Smita RoychoudhuryDepartment of Pediatrics, McMaster Children's Hospital, Hamilton Health Sciences, Hamilton, ON, Canada.
Hussein ZeinSection of Neonatology, Department of Pediatrics, University of Calgary, Calgary, AB, Canada.
Prashanth MurthySection of Neonatology, Department of Pediatrics, University of Calgary, Calgary, AB, Canada.
Sumesh P ThomasSection of Neonatology, Department of Pediatrics, University of Calgary, Calgary, AB, Canada.
Khorshid MohammadSection of Neonatology, Department of Pediatrics, University of Calgary, Calgary, AB, Canada.
Calgary Neonatal Neuro-Critical Care Program
University of Calgary · CAHamilton Health Sciences · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPost-hemorrhagic ventricular dilatation (PHVD) in preterm infants can be assessed with ventricular size indices from cranial ultrasound. We explored inter-observer reliability of these indices for prediction of severe PHVD.

methodsFor all 139 infants with IVH, serial neonatal ultrasound at 3 time points (days 4-7, day 14, 36 weeks PMA) were assessed independently by 3 observers with differing levels of training/experience. Ventricular index (VI), anterior horn width (AHW), and fronto-temporal horn ratio (FTHR) were measured and used to diagnose PHVD. For all, inter-observer reliability and predictive values for receipt of surgical intervention were calculated.

resultsInter-observer reliability for all observers varied from poor to excellent, with higher reliability for VI/AHW (ICC 0.49-0.84/0.51-0.81) than FTHR (0.41-0.82), particularly from the second week. Good-excellent inter-expertise reliability was found between observers with ample experience/training (0.65-0.99), particularly for VI and AHW, while poor-moderate when comparing with an inexperienced observer (0.28-0.88). Slightly higher predictive value for PHVD intervention (n = 12) was found for AHW (AUC 0.86-0.96) than for VI and FTHR (0.80-0.96/0.80-0.95).

conclusionsAHW and VI are highly reproducible in experienced hands compared to FTHR, with AHW from the second week onwards being the strongest predictor for receiving surgical intervention for severe PHVD. AHW may aid in early PHVD diagnosis and decision-making on intervention. IMPACT: While ventricular size indices from serial cUS are superior to clinical signs of increased intracranial pressure to assess PHVD, questions remained on their inter-observer reproducibility and reliability to predict severity of PHVD. AHW and VI are highly reproducible when performed by experienced clinicians. AHW from the second week of birth is the strongest predictor of PHVD onset and severity. AHW, combined with VI, may aid in early PHVD diagnosis and decision-making on need for surgical intervention. Consistent use of these indices has the potential to improve PHVD management and therewith the long-term outcomes in preterm infants.

Indexed as

Infant, Extremely PrematureUltrasonographyCerebral Intraventricular HemorrhageCerebral VentriclesFemaleGestational AgeHumansInfant, NewbornMaleObserver VariationPredictive Value of TestsReproducibility of ResultsRetrospective Studies

Identifiers

PMID33184496
OpenAlexW3102436719

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.