Evidence map›Paper›PMID 42477100›Full record

ArticleJournal of perinatology : official journal of the California Perinatal Association2026

Early echocardiographic markers following deferred cord clamping with high or low oxygen in extremely low gestation infants (DOXIE-Echo).

Jenny Koo, Nohemi Torres, Satyan Lakshminrushimha, Anup Katheria

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Article in Journal of perinatology : official journal of the California Perinatal Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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, 1 synthesis or guideline pooled it.

  1. Pooled it
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.

Jenny KooDepartment of Neonatology, Sharp Mary Birch Hospital for Women and Newborns, San Diego, CA, USA. jenny.koo@sharp.com.ORCID http://orcid.org/0000-0002-0925-7115
Nohemi TorresDepartment of Neonatology, Sharp Mary Birch Hospital for Women and Newborns, San Diego, CA, USA.
Satyan LakshminrushimhaDepartment of Pediatrics, University of Davis Children's Hospital, Sacramento, CA, USA.ORCID http://orcid.org/0000-0001-6098-2155
Anup KatheriaDepartment of Neonatology, Sharp Mary Birch Hospital for Women and Newborns, San Diego, CA, USA.ORCID http://orcid.org/0000-0001-9352-0934

Funding

U.S. Department of Health & Human Services | NIH | NICHD | National Center for Medical Rehabilitation Research (NCMRR) 1R03HD105224
6 · The paper itself

Abstract

Deferred cord clamping (DCC) with adequate ventilation improves cardiovascular transition and survival. Brief use of 100% oxygen during neonatal resuscitation may enhance ventilation and reduce pulmonary vascular resistance.

objectiveDetermine whether high oxygen (HI, 100%) versus low oxygen (LO, 30%) support during DCC affects postnatal hemodynamics in extremely preterm infants.

methodsIn this double-blinded randomized sub-study, infants born at 23⁰-27⁶ weeks' gestation received respiratory support with HI or LO oxygen during 90 s of DCC. After cord clamping, all infants were managed per standard guidelines. An echocardiogram was performed within 12 postnatal hours to assess cardiac function.

resultsBaseline characteristics of 110 infants (51 HI, 59 LO) were similar. Right ventricular output did not differ between groups (293 ± 105 vs 268 ± 71 ml/kg/min; p = 0.17), nor did additional measures of cardiac function.

conclusionsUse of 100% oxygen during DCC did not adversely affect early transitional hemodynamics compared with 30% oxygen.

Identifiers

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Registered trials

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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.