Evidence map›Paper›PMID 30412068›Full record

SynthesisMedicine2018

Pharmacologic prevention of postoperative delirium after on-pump cardiac surgery: A meta-analysis of randomized trials.

Rui Tao, Xiao-Wen Wang, Liang-Jun Pang, Jun Cheng, Yong-Mei Wang, Guo-Qing Gao, Yu Liu, Chao Wang

Open access · goldAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
1.7field-weighted citation impact, top 16% of its field
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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
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  3. Pooled it
  4. Trial
  5. Article
  6. Effect of Cerebrolysin on Cognitive Function and Delirium in Coronary Artery Bypass Graft Patients.Medical science monitor : international medical journal of experimental and clinical research · 2025
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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

8 authors at 3 institutions in 1 country.

Rui TaoDepartment of Substance-Related Disorders, Division of Psychiatry, Hefei No.4 People's Hospital, Anhui Mental Health Center.
Xiao-Wen WangDepartment of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Liang-Jun PangDepartment of Substance-Related Disorders, Division of Psychiatry, Hefei No.4 People's Hospital, Anhui Mental Health Center.
Jun ChengDepartment of Substance-Related Disorders, Division of Psychiatry, Hefei No.4 People's Hospital, Anhui Mental Health Center.
Yong-Mei WangDepartment of Substance-Related Disorders, Division of Psychiatry, Hefei No.4 People's Hospital, Anhui Mental Health Center.
Guo-Qing GaoDepartment of Substance-Related Disorders, Division of Psychiatry, Hefei No.4 People's Hospital, Anhui Mental Health Center.
Yu LiuDepartment of Substance-Related Disorders, Division of Psychiatry, Hefei No.4 People's Hospital, Anhui Mental Health Center.
Chao WangDepartment of Substance-Related Disorders, Division of Psychiatry, Hefei No.4 People's Hospital, Anhui Mental Health Center.
Anhui Mental Health Center · CNAnhui Medical University · CNChongqing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPostoperative delirium is a prevalent and disabling mental disorder in patients undergoing on-pump cardiac surgery. There is some evidence that the use of pharmacological interventions may reduce the risk of developing of postoperative delirium. Therefore, the aim of this meta-analysis was to determine the effect of pharmacologic agents for the prevention postoperative delirium after cardiac surgery.

methodsRandomized controlled trials (RCTs) were identified through a systematic literature search of electronic databases and article references up to October 2016. End points included incidence of postoperative delirium, severity of postoperative delirium, cognitive disturbances of postoperative delirium, duration of postoperative delirium, length of stay in intensive care unit (ICU) and hospital, and short-term mortality.

resultsA total of 14 RCTs with an aggregate of 14,139 patients were included. The results of the present meta-analysis show that pharmacologic agents significantly decrease postoperative delirium [relative risk (RR), 0.83; 95% confidence interval (95% CI), 0.75-0.91, P < .00001] and duration of postoperative delirium (RR = -0.37, 95% CI = -0.47 to -0.27, P < .00001) after on-pump cardiac surgery. In addition, subgroup analysis shows that dexamethasone and dexamethasone were associated with a trend toward a reduction in postoperative delirium (RR, 0.45; 95% CI, 0.30-0.66, P < .0001; RR, 0.80; 95% CI, 0.68-0.93, P = .003, respectively). However, our results fail to support the assumption that pharmacologic prophylaxis is associated with a positively reduction in short-term mortality, length of ICU, or hospital stay.

conclusionThis meta-analysis suggests that the perioperative use of pharmacologic agents can prevent postoperative delirium development in patients undergoing cardiac surgery. However, there remain important gaps in the evidence base on a few small studies with multiple limitations. Further large-scale, high-quality RCTs are needed in this area.

Indexed as

Randomized Controlled Trials as TopicAntipsychotic AgentsCardiac Surgical ProceduresDeliriumHumansPostoperative ComplicationsAntipsychotic Agents

Identifiers

PMID30412068
PMCPMC6221693
OpenAlexW2898414658

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.