Evidence map›Paper›PMID 29909757›Full record

ArticleSurgical innovation2018

Pilot Study: Detection of Gastric Cancer From Exhaled Air Analyzed With an Electronic Nose in Chinese Patients.

Valérie N E Schuermans, Ziyu Li, Audrey C H M Jongen, Zhouqiao Wu, Jinyao Shi, Jiafu Ji, Nicole D Bouvy

2 registry-linked trialsAbstract read
In one paragraph

Article in Surgical innovation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 21 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 6 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.

NCT04475562 nacompletednot on this mapstarted 2020, after this paper: background citation

Can the Electronic Nose Smell COVID-19? A Proof-of-principle Study

TypeinterventionalSponsorMaastricht University Medical CenterRan2020 to 2020Enrolled219ConditionsSARS-CoV Infection, Covid19ArmsAeonose
NCT04475575 nacompletednot on this mapstarted 2020, after this paper: background citation

Can the Electronic Nose Smell COVID-19 Antibodies? A Proof-of-principle Study

TypeinterventionalSponsorMaastricht University Medical CenterRan2020 to 2020Enrolled222ConditionsSARS-CoV Infection, Covid19ArmsAeonose
3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 6 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Valérie N E Schuermans1 Maastricht University Medical Centre, Maastricht, Netherlands.ORCID https://orcid.org/0000-0002-1733-8564
Ziyu Li2 Beijing University Cancer Hospital & Institute, Beijing, China.
Audrey C H M Jongen1 Maastricht University Medical Centre, Maastricht, Netherlands.
Zhouqiao Wu2 Beijing University Cancer Hospital & Institute, Beijing, China.
Jinyao Shi2 Beijing University Cancer Hospital & Institute, Beijing, China.
Jiafu Ji2 Beijing University Cancer Hospital & Institute, Beijing, China.
Nicole D Bouvy1 Maastricht University Medical Centre, Maastricht, Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this pilot study is to investigate the ability of an electronic nose (e-nose) to distinguish malignant gastric histology from healthy controls in exhaled breath. In a period of 3 weeks, all preoperative gastric carcinoma (GC) patients (n = 16) in the Beijing Oncology Hospital were asked to participate in the study. The control group (n = 28) consisted of family members screened by endoscopy and healthy volunteers. The e-nose consists of 3 sensors with which volatile organic compounds in the exhaled air react. Real-time analysis takes place within the e-nose, and binary data are exported and interpreted by an artificial neuronal network. This is a self-learning computational system. The inclusion rate of the study was 100%. Baseline characteristics differed significantly only for age: the average age of the patient group was 57 years and that of the healthy control group 37 years ( P value = .000). Weight loss was the only significant different symptom ( P value = .040). A total of 16 patients and 28 controls were included; 13 proved to be true positive and 20 proved to be true negative. The receiver operating characteristic curve showed a sensitivity of 81% and a specificity of 71%, with an accuracy of 75%. These results give a positive predictive value of 62% and a negative predictive value of 87%. This pilot study shows that the e-nose has the capability of diagnosing GC based on exhaled air, with promising predictive values for a screening purpose.

Indexed as

Electronic NoseAdultBreath TestsChinaEvidence-Based MedicineFemaleHumansMaleMiddle AgedPilot ProjectsProspective StudiesROC CurveSensitivity and SpecificityStomach NeoplasmsVolatile Organic CompoundsVolatile Organic Compoundsevidence-based medicine/surgerygastric surgerysurgical oncology

Identifiers

PMID29909757
PMCPMC6166235

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Registered trials

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.