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Diagnostic Accuracy of Lung Ultrasound for Pneumonia Diagnosis in Children

Evaluation of Diagnostic Benefit and Feasibility of Using Lung Ultrasound to Diagnose Childhood Pneumonia in Low-resource Settings

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07331311
Acronym
LUS
Enrollment
320
Registered
2026-01-09
Start date
2024-11-19
Completion date
2025-06-30
Last updated
2026-01-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Childhood Pneumonia, Pneumonia

Keywords

Lung ultrasound, Point-of-Care test, Point-of-Care Lung Ultrasound

Brief summary

Chest X-ray is historically being used as an imaging standard to aid to the diagnosis of childhood pneumonia, however, the evidence does not support it as a perfect imaging tool. As an alternative to CXR, lung ultrasound (LUS) could be used as the imaging of choice in children and studies have demonstrated its good accuracy to diagnose childhood pneumonia. However, most diagnostic studies have used CXR as a reference standard. In absence of a 'gold standard' approach, there is a risk that large proportion of children with pneumonia and severe pneumonia could be 'missed' if clinicians relied on LUS only. This research aims to evaluate the diagnostic benefit of LUS in children compared against 'gold standard' diagnosis which is derived based on the clinical information, imaging and laboratory investigations.

Interventions

DIAGNOSTIC_TESTLUS as a chest imaging tool

Each study participant receives LUS scan followed by CXR as chest imaging modality. LUS is the diagnostic test under investigation, compared against clinical gold standard (described later).

Sponsors

London School of Hygiene and Tropical Medicine
CollaboratorOTHER
Global Health Research and Medical Interventions Institute (GlohMed), Nepal
CollaboratorUNKNOWN
Nagasaki University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Masking description

Care provider performing LUS scans are masked of CXR report and clinical information about he participant, other than the case has WHO defined pneumonia

Intervention model description

Lung ultrasound followed by chest X-ray in all enrolled participants as chest imaging investigation

Eligibility

Sex/Gender
ALL
Age
2 Months to 5 Years
Healthy volunteers
No

Inclusion criteria

* Clinical suspicion of pneumonia. Pneumonia is suspected in a child meeting the WHO case definition of pneumonia, i.e. cough or difficulty breathing associated with fast breathing and/ or lower chest wall indrawing.

Exclusion criteria

* Non-consenting parents. * Children who are hospitalized for more than 24 hours. * Children treated for pneumonia at the study site within past 4 weeks. * Critical patients requiring emergency lifesaving support and parents unable to cooperate to provide consent.

Design outcomes

Primary

MeasureTime frameDescription
Pneumonia missed by LUSFrom enrolment until day-5 follow upProportion of children with any pneumonia (severe or non-severe) that would be missed by LUS at initial presentation
Pneumonia missed by CXRFrom enrolment until day-5 follow upProportion of children with any pneumonia (severe or non-severe) that would be missed by CXR at initial presentation

Secondary

MeasureTime frameDescription
Diagnostic accuracy of LUSFrom enrolment to day-5 follow upSensitivity and specificity of LUS for pneumonia diagnosis in children, compared against 'Gold standard' diagnosis adjudicated by expert paediatrician panel after reviewing all available clinical information about the child during study time frame
Diagnostic accuracy of CXRFrom enrolment to day-5 follow upSensitivity and specificity of CXR for pneumonia diagnosis in children, compared against 'Gold standard' diagnosis adjudicated by expert paediatrician panel after reviewing all available clinical information about the child during study time frame

Other

MeasureTime frameDescription
Proportion of 'missed pneumonia' cases with adverse clinical outcomesFrom day of enrolment to day-5 follow upList of adverse clinical outcomes and their measures: 1. 'Clinical worsening' - defined as change from non-severe pneumonia to severe pneumonia status; 2. 'Development of pulmonary complications' - defined as development of pleural effusion, empyema, pneumatocele, TB or respiratory failure/ARDS requiring ventilator support for the current episode of illness; 3. 'ICU admission' - defined as requiring ICU care for current episode of illness; 4. 'Revisit or readmission' - defined as unscheduled ER visit and/ or readmission within 4 weeks of initial visit for current episode of illness; 5. 'Prolonged hospitalisation' - defined as hospitalisation for more than 5 days; 6. 'Mortality' - if the child died due to current episode of illness

Countries

Nepal

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026