SynthesisNeonatology2026
The Effect of Liberal versus Restrictive Haemoglobin Thresholds on Cerebral Tissue Oxygenation in Preterm Infants: A Systematic Review and Meta-Analysis.
Synthesis in Neonatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionNear-infrared spectroscopy (NIRS) is emerging as a promising method of assessing individualized cerebral oxygenation responses to red blood cell (RBC) transfusion. However, the impact of liberal (high) versus restrictive (low) haemoglobin thresholds on transfusion-related changes in cerebral tissue oxygenation (crSO
methodsData were extracted (PubMed/MEDLINE, Embase, Web of Science, and Cochrane Database of Systematic Reviews) and risk of bias and certainty of evidence reviewed. Included studies reported changes in cerebral oxygenation in preterm infants receiving RBCs in response to reaching either a liberal or restrictive transfusion threshold. A random-effects model was used to determine effect size and 95% confidence for the primary outcome of change in crSO
resultsForty-three full-text articles were assessed for eligibility with 7 studies included for meta-analysis (restrictive threshold: n = 357, liberal threshold: n = 220). crSO
conclusionGreater improvements to cerebral oxygenation occurred in preterm neonates with a restrictive threshold, suggesting enhanced physiological benefit in response to transfusion. However, meaningful clinical conclusions are limited due to low certainty of evidence and considerable inconsistencies across reporting.
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