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<p>Organ perfusion and regional tissue oxygen saturation (rSO<sub>2</sub>) can be measured non-invasively using near-infrared spectroscopy (NIRS). While cerebral NIRS monitoring in neonates has been widely used, the adoption of renal NIRS is still evolving. This narrative review explores the application of renal NIRS in neonates and proposes an algorithm for integrating renal and cerebral NIRS in the neonatal intensive care unit. Decreased renal regional oxygenation (RrSO<sub>2</sub>) suggests decreased renal O<sub>2</sub> delivery/perfusion or increased O<sub>2</sub> consumption, warranting evaluation for acute kidney injury, anemia, hemodynamically significant patent ductus arteriosus, or hypotension. Increased RrSO<sub>2</sub> indicates increased renal O<sub>2</sub> delivery/perfusion or decreased O<sub>2</sub> consumption, necessitating assessment for hyperoxia or established kidney injury. Combining cerebral and renal NIRS provides a comprehensive evaluation, allowing for the detection of early clinical changes. This integrated monitoring approach holds promise for improving neonatal outcomes. However, further large-scale studies are needed to establish normal ranges and guide therapeutic interventions.</p>

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A narrative review of the clinical applications of renal NIRS and integration with cerebral NIRS in the NICU

  • 期刊论文

  • 发表日期：

    2025年4月15日

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  • Dimitrios Rallis,
  • Helen Christou,
  • Elisa Abdulhayoglu,
  • Mohamed El-Dib

摘要

Organ perfusion and regional tissue oxygen saturation (rSO2) can be measured non-invasively using near-infrared spectroscopy (NIRS). While cerebral NIRS monitoring in neonates has been widely used, the adoption of renal NIRS is still evolving. This narrative review explores the application of renal NIRS in neonates and proposes an algorithm for integrating renal and cerebral NIRS in the neonatal intensive care unit. Decreased renal regional oxygenation (RrSO2) suggests decreased renal O2 delivery/perfusion or increased O2 consumption, warranting evaluation for acute kidney injury, anemia, hemodynamically significant patent ductus arteriosus, or hypotension. Increased RrSO2 indicates increased renal O2 delivery/perfusion or decreased O2 consumption, necessitating assessment for hyperoxia or established kidney injury. Combining cerebral and renal NIRS provides a comprehensive evaluation, allowing for the detection of early clinical changes. This integrated monitoring approach holds promise for improving neonatal outcomes. However, further large-scale studies are needed to establish normal ranges and guide therapeutic interventions.