Evidence map›Paper›PMID 42545870›Full record

Observational studyCritical care explorations2026

Safety and Feasibility of Bedside Electrical Impedance Tomography With Hypertonic Saline Contrast for Assessing Pulmonary Perfusion in Mechanically Ventilated Children With Acute Respiratory Distress Syndrome: A Pilot Study.

Jing Zhang, Shuang Liu, Ning Li, Wei Li, Dong Qu

Abstract readObservational Study
In one paragraph

Observational study in Critical care explorations, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Jing ZhangAll authors: Department of Intensive Care Unit, Capital Center for Children's Health, Capital Medical University, Beijing, China.
Shuang Liu
Ning Li
Wei Li
Dong Qu

Funding

New Quality Foundation of Capital Institute of Pediatrics XZYC-2025-14Research Foundation of Capital Institute of Pediatrics JHYJ-2025-04
6 · The paper itself

Abstract

importanceElectrical impedance tomography (EIT) offers a noninvasive, radiation-free imaging alternative, but its perfusion evaluation capability in children is understudied. Hypertonic saline-enhanced EIT may address this gap, enabling real-time guidance for individualized respiratory support.

objectivesThis study aims to systematically assess the safety and efficacy of hypertonic saline-enhanced bedside EIT in evaluating pulmonary perfusion in pediatric patients with acute respiratory distress syndrome (ARDS).

designSingle-center prospective observational study. SETTING AND

participantsPediatric ARDS patients undergoing invasive mechanical ventilation were enrolled at the PICU of the Capital Center for Children's Health, Capital Medical University, China, from December 29, 2024, to August 7, 2025. MAIN OUTCOMES AND MEASURES: Each participant received a central venous bolus of 0.2 mL/kg (up to a maximum of 10 mL) of a 10% hypertonic saline. EIT data were collected from 2 minutes before the injection to 1-2 minutes following it. Key parameters, including dead space ventilation fraction, intrapulmonary shunt fraction, and ventilation/perfusion (V/Q) matching percentage, were analyzed to evaluate lung pathophysiology and inform therapeutic strategies. The study monitored eight patients (four males, four females; ages ranging from 4 mo to 11 yr).

resultsAll procedures were well-tolerated, with no adverse events, including hypernatremia. In five patients who also underwent contrast-enhanced CT, EIT findings were consistent with CT results. Seven patients demonstrated matched V/Q ratios (74.97-80.39%), while one patient with pulmonary embolism exhibited increased dead space ventilation (37.03%) and decreased V/Q matching (60.71%). CONCLUSIONS AND RELEVANCE: Hypertonic saline-enhanced EIT is a safe, effective, and feasible bedside method for evaluating pulmonary perfusion in mechanically ventilated children with ARDS. These findings implied potential associations with the CT outcomes, indicating its significant potential for guiding targeted respiratory management. Although promising, these results stem from a small sample size, necessitating further validation in larger studies.

Indexed as

Electric ImpedanceRespiration, ArtificialRespiratory Distress SyndromeTomographyChildChild, PreschoolContrast MediaFeasibility StudiesFemaleHumansInfantMalePilot ProjectsPoint-of-Care SystemsProspective StudiesSaline Solution, HypertonicContrast MediaSaline Solution, Hypertonicacute respiratory distress syndromechildrenelectrical impedance tomographypulmonary perfusionsaline contrast enhancementventilation/perfusion matching

Identifiers

PMID42545870
PMCPMC13441157

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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.