Observational studyJournal of perinatology : official journal of the California Perinatal Association2025
Evaluation of kidney oxygenation monitoring with near infrared spectroscopy in preterm neonates: kidney location, depth, and laterality differences.
Observational study in Journal of perinatology : official journal of the California Perinatal Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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.
Who cites it
2 citing papers in PubMed.
- Evaluation of kidney oxygenation compared to intestinal oxygenation and feeding timing in preterm neonates.Journal of perinatology : official journal of the California Perinatal Association · 2026Article
- Photoacoustic imaging of intestinal physiological biomarkers in infants and children.medRxiv : the preprint server for health sciences · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
introductionNear infrared spectroscopy (NIRS) monitoring of preterm kidney oxygenation is increasing. We sought to evaluate kidney positioning and oxygenation differences between the right and left kidneys.
methodsPreterm neonates <32 weeks' gestational age were enrolled in a prospective observational NIRS study. Two three-hour epochs of simultaneous bilateral kidney monitoring were performed (5-8 days, 9-14 days). Point of care kidney ultrasound was performed once between days 5 and 12.
resultsThere were no right-left differences in skin to superior kidney depth (0.39 and 0.38 cm; p = 0.62) or spine to kidney distance (1.06 and 1.02 cm; p = 0.31). There was a difference in right-left skin to inferior kidney depth (2.15 and 2.04 cm; p = 0.02). There was higher oxygenation in the left kidney compared to the right (65.6 vs. 62.7%, p < 0.01). Hourly individual differences of >10% were seen in 37% of neonates.
conclusionsDifferences in kidney depth and right-left oxygenation exist in preterm neonates.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.