Evidence map›Paper›PMID 35996073›Full record

Trial reportBMC anesthesiology2022

The effect of neostigmine on postoperative delirium after colon carcinoma surgery: a randomized, double-blind, controlled trial.

Fanghao Liu, Xu Lin, Yanan Lin, Xiyuan Deng, Yuwei Guo, Bin Wang, Rui Dong, Yanlin Bi

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC anesthesiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed, 3 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Review
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 2 institutions in 1 country.

Fanghao Liu *Department of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, China.
Xu Lin *Department of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, China.
Yanan LinDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, China.
Xiyuan DengDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, China.
Yuwei GuoDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, China.
Bin WangDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, China. wangbin328@sina.com.
Rui DongDepartment of Anesthesiology, Nanjing Drum Tower Hospital, Nanjing, China.
Yanlin BiDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, China. pndable2021@sina.com.
Qingdao University · CNNanjing Drum Tower Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPostoperative delirium (POD) is a critical complication in patients accepting colon carcinoma surgery. Neostigmine, as a cholinesterase inhibitor, can enhance the transmission of cholinergic transmitters in synaptic space, and play an important role in maintaining the normal level of cognition, attention and consciousness. The objective of this study was to investigate the effect of neostigmine on POD and clinical prognosis.

methodsA randomized, double-blind controlled trial was implemented in Qingdao Municipal Hospital Affiliated to Qingdao University. A total of 454 patients aged 40 to 90 years old accepted colon carcinoma surgery were enrolled between June 7, 2020, and June 7, 2021, with final follow-up on December 8, 2021. Patients were randomly assigned to two groups: the neostigmine group (group N) and the placebo group (group P), the patients in group N were injected with 0.04 mg/kg neostigmine and 0.02 mg/kg atropine intravenously. The primary endpoint was the incidence of POD, researchers evaluated the occurrence of POD by the Confusion Assessment Method (CAM) twice daily (at 10 a.m. and 2 p.m.) during the first 7 postoperative days, POD severity was assessed by the Memorial Delirium Assessment Scale (MDAS). The secondary endpoints were the extubating time, postanesthesia care unit (PACU) time, the incidence of various postoperative complications, length of hospital stays, and 6 months postoperative mortality.

resultsThe incidence of POD was 20.20% (81/401), including 19.39% (38/196) in group N and 20.98% (43/205) in group P. There was no significant statistical significance in the incidence of POD between group N and group P (P > 0.05); Compared to group P, the extubating time and PACU time in group N were significantly reduced (P < 0.001), the incidence of postoperative pulmonary complications (POPCs) decreased significantly in group N (P < 0.05), while no significant differences were observed in postoperative hospital stay and mortality in 6 months between the two groups (P > 0.05).

conclusionFor patients accepted colon carcinoma surgery, neostigmine did not significantly reduce the incidence of POD, postoperative mortality and postoperative hospital stay, while it indeed reduced the extubating time, PACU time and the incidence of POPCs.

trial registrationThe randomized, double-blind, controlled trial was registered retrospectively at www.chictr.org.cn on 07/06/2020 (ChiCTR2000033639).

Indexed as

CarcinomaDeliriumAdultAgedAged, 80 and overColonDouble-Blind MethodHumansMiddle AgedNeostigminePostoperative ComplicationsRetrospective StudiesNeostigmineColon carcinoma surgeryNeostigminePostoperative deliriumPostoperative pulmonary complicationsTOF

Identifiers

PMID35996073
PMCPMC9394039
OpenAlexW4292603724

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.