Evidence map›Paper›PMID 26472651›Full record

ArticlePediatric cardiology2016

Cardiac Function After the Immediate Transitional Period in Very Preterm Infants Using Speckle Tracking Analysis.

Koert de Waal, Nilkant Phad, Anil Lakkundi, Peter Tan

Abstract read
PubMed Publisher
In one paragraph

Article in Pediatric cardiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

12 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Left ventricular diastolic dysfunction in preterm infants with bronchopulmonary dysplasia.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Observational
  9. Early diastolic dysfunction and respiratory morbidity in premature infants: an observational study.Journal of perinatology : official journal of the California Perinatal Association · 2018
    Observational
  10. Review
  11. Maturational Patterns of Systolic Ventricular Deformation Mechanics by Two-Dimensional Speckle-Tracking Echocardiography in Preterm Infants over the First Year of Age.Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography · 2017
    Article
  12. Right ventricular performance using myocardial deformation imaging in infants with bronchopulmonary dysplasia.Journal of perinatology : official journal of the California Perinatal Association · 2017
    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

4 authors at 2 institutions in 1 country.

Koert de WaalNeonatal Intensive Care Unit, John Hunter Children's Hospital, Lookout Road, New Lambton, NSW, 3205, Australia. koert.dewaal@hnehealth.nsw.gov.au.
Nilkant PhadNeonatal Intensive Care Unit, John Hunter Children's Hospital, Lookout Road, New Lambton, NSW, 3205, Australia.
Anil LakkundiNeonatal Intensive Care Unit, John Hunter Children's Hospital, Lookout Road, New Lambton, NSW, 3205, Australia.
Peter TanUniversity of Newcastle, New Lambton, NSW, Australia.
John Hunter Children's Hospital · AUUniversity of Newcastle Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe postnatal period in preterm infants involves multiple physiologic changes starting directly after birth and continuing for days or weeks. To recognize and treat compromise, it is important to measure cardiovascular function. We used a novel technique (speckle tracking echocardiography, STE) to measure cardiac function in this period.

methodsWe obtained cardiac ultrasound images at day 3, 7, 14, 21 and 28 in preterm infants <30-week gestation. Conventional measures included cardiac size, left ventricular stroke volume, atrial volume and the patent ductus arteriosus (PDA). Four chamber images were analyzed with STE, which provided parameters of left ventricular volume, longitudinal deformation and myocardial velocities.

resultsImages of 54 infants (gestational age 23-29 weeks) were analyzed. STE-derived stroke volume correlated well with conventional echocardiography-derived stroke volume, but agreement was suboptimal. Most STE parameters showed good reliability. All volume parameters and systolic and atrial velocities increased over time. Cardiac deformation and early diastolic velocity did not change. A PDA was associated with 33 % increased stroke volume at day 3 up to 98 % at day 28 with a spherically enlarged heart and increased filling pressure.

conclusionSpeckle tracking echocardiography analysis is a feasible and reliable technique that can simultaneously obtain systolic and diastolic volumes, longitudinal deformation and myocardial velocities from one ultrasound window. Preterm hearts maintain cardiac function well during the first weeks of life, even with increased preload as a consequence of a PDA.

Indexed as

EchocardiographyInfant, Extremely PrematureAustraliaDiastoleDuctus Arteriosus, PatentFemaleGestational AgeHeartHumansInfant, NewbornReproducibility of ResultsStroke VolumeVentricular Function, LeftCardiac outputHemodynamicsNewbornPatent ductus arteriosusSpeckle tracking echocardiography

Identifiers

PMID26472651
OpenAlexW2183522829

What OpenQuestion holds

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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.