Evidence map›Paper›PMID 34163152›Full record

Trial reportClinical interventions in aging2021

Intraoperative Oxygen Concentration and Postoperative Delirium After Laparoscopic Gastric and Colorectal Malignancies Surgery: A Randomized, Double-Blind, Controlled Trial.

Xu Lin, Pei Wang, Ding-Wei Liu, Yu-Wei Guo, Chun-Hui Xie, Bin Wang, Rui Dong, Li-Xin Sun, Ming-Shan Wang, Yan-Lin Bi

Open access · goldAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Clinical interventions in aging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 8 pooled it
1.9field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 8 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Nonpharmacological interventions for preventing delirium in adult patients with cancer: a systematic review and meta-analysis.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
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  20. Effects of Abdominal Wall Blocks on Postoperative Delirium in Elderly Patients Undergoing Laparoscopic Surgery: A Randomized Controlled Study.Medical science monitor : international medical journal of experimental and clinical research · 2022
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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

10 authors at 3 institutions in 1 country.

Xu Lin *Department of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, People's Republic of China.
Pei WangDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, People's Republic of China.
Ding-Wei LiuDepartment of Laboratory, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, People's Republic of China.
Yu-Wei GuoDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, People's Republic of China.
Chun-Hui XieDepartment of Anesthesiology, Weifang Medical University, Weifang, People's Republic of China.ORCID 0000-0001-7403-6522
Bin Wang *Department of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, People's Republic of China.
Rui DongDepartment of Anesthesiology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing, People's Republic of China.
Li-Xin SunDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, People's Republic of China.
Ming-Shan Wang *Department of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, People's Republic of China.
Yan-Lin BiDepartment of Anesthesiology, Qingdao Municipal Hospital Affiliated to Qingdao University, Qingdao, People's Republic of China.ORCID 0000-0001-8688-9733
Qingdao University · CNNanjing Drum Tower Hospital · CNWeifang Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePostoperative delirium (POD) is common in elderly patients undergoing laparoscopic surgery for gastric and colorectal malignancies. POD may be affected by different fraction of inspired oxygen (FiO PATIENTS AND

methodsA randomized, double-blind controlled trial was performed in Qingdao Municipal Hospital Affiliated to Qingdao University. A total of 662 patients aged 65 to 85 years old underwent isolated laparoscopic radical gastrectomy, radical resection of colon cancer, or radical resection of rectal cancer only. A random number table method was used to divide the patients into two groups: 40% FiO

resultsThe incidence of POD was 19.37% (122/630), including 20.38% (64/314) in group A and 18.35% (58/316) in group B. No statistical significance was found in the incidence of POD between the two groups (

conclusionThe incidence of POD was not significantly affected by different FiO

Indexed as

AgedAged, 80 and overColorectal NeoplasmsDeliriumDigestive System Surgical ProceduresDouble-Blind MethodHumansLaparoscopyMaleOxygenPostoperative ComplicationsPostoperative PeriodOxygenintraoperative oxygen concentrationmalignancypostoperative delirium

Identifiers

PMID34163152
PMCPMC8214551
OpenAlexW3166613552

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.