Prefrontal brain oximetry in pediatric LRTIs: new Scientific Reports study using our NIRSBOX tissue oximeter.

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A new peer-reviewed paper in Nature Portfolio’s Scientific Reports shows that time-domain NIRS (TD-NIRS) with NIRSBOX can detect prefrontal cortex tissue oxygenation differences in children hospitalized with lower respiratory tract infections (LRTIs) compared with age- and sex-matched controls. In multivariate analysis, cerebral StO₂ emerged as an independent predictor of LRTI status, underscoring the added value of direct brain oximetry beyond routine pulse oximetry.
Full publication here -> Nature

What’s in the paper

  • Design: Observational case–control study, 30 pediatric LRTI patients (pneumonia or bronchiolitis) vs 30 controls at Buzzi Children’s Hospital (Milan)
  • Measurement sites: Left prefrontal cortex (Fp1) and middle upper arm; five short acquisitions with probe repositioning to test repeatability.
  • Device & probe: NIRSBOX TD-NIRS (685 & 830 nm) with G5 “Goccia” smart probe (2.5 cm SDS, contact sensor), enabling measurements of absolute hemoglobin concentrations and StO₂ with improved depth sensitivity.
  • Key result: Prefrontal StO₂ contributed independently to classifying LRTI vs control (OR = 0.45; p = 0.002), highlighting brain-specific information not captured by SpO₂.

Why this matters

When the lungs struggle, the brain is the organ we most need to protect. Traditional SpO₂ tracks systemic arterial blood oxygenation, but may miss localized cerebral hypoxia. TD-NIRS provides quantitative, brain-specific tissue oxygenation that can complement standard monitoring and potentially inform research endpoints in pediatrics.

How measurements were performed

NIRSBOX acquisitions were brief, non-invasive, and repeatable: clinicians gently positioned the probe at Fp1 position on the prefrontal cortex, collecting 5 s acquisitions at 1 Hz across five repositionings —an approach aligned with PIONIRS’ emphasis on rigor, reproducibility, and operator-independent workflows.

A step forward for quantitative pediatric oximetry

This study builds on prior PIONIRS-supported work establishing reference values and demonstrating precision/robustness of TD-NIRS in children—moving the field toward trustworthy, quantitative brain and peripheral oximetry in real-world care.

Read the open-access paper in Scientific Reports and explore how NIRSBOX can accelerate your pediatric research.

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