Evidence map›Paper›PMID 32993811›Full record

ArticleCritical care (London, England)2020

Influence of overdistension/recruitment induced by high positive end-expiratory pressure on ventilation-perfusion matching assessed by electrical impedance tomography with saline bolus.

Huaiwu He, Yi Chi, Yun Long, Siyi Yuan, Inéz Frerichs, Knut Möller, Feng Fu, Zhanqi Zhao

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in Critical care (London, England), 2020. 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 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 5% 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.

NCT04081155 completednot on this map

Effect of Positive End-expiratory Pressure(PEEP) on Regional Ventilation and Perfusion Estimated by Indicator-based Electrical Impedance Tomography(EIT) Method in Critically Ill Patients With Mechanical Ventilation

TypeobservationalSponsorYun LongRan2019 to 2020Enrolled33ConditionsMechanical Ventilation Complication, Respiratory Failure, Hypoxia
NCT05765760 completednot on this mapstarted 2023, after this paper: background citation

Improvement of Acute Respiratory Distress Syndrome Ventilation-perfusion Matching by Prone Positioning Assessed by Electrical Impedance Tomography

TypeobservationalSponsorBeijing Chao Yang HospitalRan2023 to 2025Enrolled77ConditionsAcute Respiratory Distress Syndrome, Prone Position, Electrical Impedance Tomography
3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

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  20. Regional lung perfusion using different indicators in electrical impedance tomography.Journal of applied physiology (Bethesda, Md. : 1985) · 2023
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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 2 countries.

Huaiwu HeDepartment of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
Yi ChiDepartment of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
Yun LongDepartment of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China. iculong_yun@163.com.ORCID 0000-0002-9196-4651
Siyi YuanDepartment of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
Inéz FrerichsDepartment of Anesthesiology and Intensive Care Medicine, University Medical Center of Schleswig-Holstein Campus kiel, Kiel 24105, Germany.
Knut MöllerInstitute of Technical Medicine, Furtwangen University, Villingen-Schwenningen, Germany.
Feng FuDepartment of Biomedical Engineering, Fourth Military Medical University, 169 Changle Xi Rd, Xi'an, China.
Zhanqi ZhaoInstitute of Technical Medicine, Furtwangen University, Villingen-Schwenningen, Germany. zhanqi.zhao@hs-furtwangen.de.
Chinese Academy of Medical Sciences & Peking Union Medical College · CNFurtwangen University · DEAir Force Medical University · CN

Funding

Capital's Funds for Health Improvement and Research 2020-2-40111Peking union medical college hospital of medical novel medical technology project XJS20190210
6 · The paper itself

Abstract

backgroundHigh positive end-expiratory pressures (PEEP) may induce overdistension/recruitment and affect ventilation-perfusion matching (VQMatch) in mechanically ventilated patients. This study aimed to investigate the association between PEEP-induced lung overdistension/recruitment and VQMatch by electrical impedance tomography (EIT).

methodsThe study was conducted prospectively on 30 adult mechanically ventilated patients: 18/30 with ARDS and 12/30 with high risk for ARDS. EIT measurements were performed at zero end-expiratory pressures (ZEEP) and subsequently at high (12-15 cmH

resultsIncreasing PEEP resulted in recruitment mainly in dorsal regions and overdistension mainly in ventral regions. ΔVQMatch

conclusionsChange of ventilation-perfusion matching was associated with regional overdistention and recruitment induced by PEEP. A low O/R ratio induced by high PEEP might indicate a more homogeneous ventilation and improvement of VQMatch.

trial registrationClinicalTrials.gov, NCT04081155 . Registered on 9 September 2019-retrospectively registered.

Indexed as

AdultChinaElectric ImpedanceFemaleFluid TherapyHumansMaleMiddle AgedOdds RatioPositive-Pressure RespirationProspective StudiesPulmonary VentilationSaline SolutionTomography, X-Ray ComputedSaline SolutionDead spaceElectrical impedance tomographyLung perfusionOverdistensionRecruitmentShuntVentilation distributionVentilation–perfusion matching

Identifiers

PMID32993811
PMCPMC7523261
OpenAlexW3090827674

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.