Preventing cognitive complications after surgery: promising signals, very uncertain evidence
An umbrella review found favorable associations for several interventions, but evidence certainty was predominantly very low.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Several interventions were associated with fewer cognitive complications after surgery, but the supporting evidence was mostly very uncertain. This abstract-based summary therefore cannot establish which approach reliably prevents these complications or which patients would benefit. The review identifies areas for stronger research rather than a clear ranking of effective preventive treatments.
The abstract gives no intervention-specific effect sizes, comparison conditions, or follow-up windows. Its broad outcome category and predominantly very low evidence certainty limit conclusions about individual interventions and complications.
What the review brought together
The authors assessed existing reviews of randomized trials in adults having surgery. They considered medicines and other approaches, including brain monitoring, acupuncture, sleep interventions, and peripheral nerve blocks, to examine prevention of neurocognitive complications.
Signals across surgery types
Subgroup analyses suggested potential benefits in cardiac, orthopedic, and other non-cardiac surgery. These broad signals do not show that every listed intervention works across every surgical setting, particularly given the very low certainty.
The original publication
Interventions to prevent postoperative neurocognitive complications: an umbrella review of meta-analyses of randomised controlled trials.
D'Amico F, Turi S, Manazza M et al.
Anaesthesia · 2026
- PubMed ID
- 41243663
- Record checked
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