Evidence map›Paper›PMID 40874412›Full record

SynthesisBiomolecules & biomedicine2025

Remimazolam vs propofol for postoperative delirium in adults undergoing general anesthesia: A meta-analysis.

Huijin Zhou, Jing Zhang, Chunyan Du

Abstract readMeta-AnalysisSystematic ReviewComparative Study
In one paragraph

Synthesis in Biomolecules & biomedicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Huijin ZhouDepartment of Anesthesiology, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China.
Jing ZhangDepartment of Pharmacy, Beijing Huilongguan Hospital, Beijing, China.
Chunyan DuDepartment of Anesthesiology, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Postoperative delirium (POD) is a prevalent and serious complication in adults undergoing surgery with general anesthesia. Remimazolam, an innovative ultra-short-acting benzodiazepine, has been identified as a potential alternative to propofol due to its advantageous pharmacological properties. However, its impact on POD remains uncertain. This study conducted a systematic review and meta-analysis following PRISMA guidelines. A comprehensive search of the PubMed, Embase, Cochrane Library, Web of Science, CNKI, and Wanfang databases was performed up to March 29, 2025. Randomized controlled trials (RCTs) comparing remimazolam and propofol in adult surgical patients under general anesthesia, specifically reporting on POD incidence, were included. A random-effects model was utilized to calculate pooled odds ratios (ORs) with 95% confidence intervals (CIs), accounting for heterogeneity. The analysis included seventeen RCTs encompassing 3,133 patients. Overall, remimazolam significantly decreased the risk of POD compared to propofol (OR: 0.71, 95% CI: 0.52-0.97, p = 0.03; I² = 36%). Sensitivity analyses, which involved excluding one study at a time, yielded consistent results, reinforcing the robustness of the findings. Subgroup analyses revealed uniform effects across different study designs (single-blind vs. double-blind; OR: 0.73 vs. 0.64; p = 0.71) and age groups (adults vs. elderly; OR: 0.64 vs. 0.72; p = 0.79). A trend toward greater benefit was observed in studies with longer follow-up periods (7 days: OR: 0.42) and in those employing the CAM or CAM-ICU for POD diagnosis, although subgroup differences were not statistically significant. In conclusion, remimazolam is associated with a significantly reduced risk of POD compared to propofol in adults undergoing general anesthesia.

Indexed as

Anesthesia, GeneralBenzodiazepinesDeliriumPostoperative ComplicationsPropofolAdultHumansRandomized Controlled Trials as TopicBenzodiazepinesPropofolremimazolam

Identifiers

PMID40874412
PMCPMC12533823

What OpenQuestion holds

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Registered trials

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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.