Evidence map›Paper›PMID 40551551›Full record

Trial reportAnaesthesia2025

Adjustment of positive end-expiratory pressure based on body mass index during general anaesthesia: a randomised controlled trial.

Helene Selpien, Jann Penon, David Thunecke, Dirk Schädler, Ingmar Lautenschläger, Henning Ohnesorge, Christine Eimer, Caroline Wolf, Armin Sablewski, Tobias Becher

Abstract readRandomized Controlled TrialEquivalence Trial
In one paragraph

Trial report in Anaesthesia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–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.

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

5 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
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.

Helene SelpienDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.ORCID 0000-0002-7261-5683
Jann PenonDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.
David ThuneckeDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.
Dirk SchädlerDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.ORCID 0000-0002-5745-4797
Ingmar LautenschlägerDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.
Henning OhnesorgeDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.ORCID 0000-0001-5216-7302
Christine EimerDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.ORCID 0000-0001-8108-8742
Caroline WolfDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.
Armin SablewskiDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.ORCID 0009-0005-3132-589X
Tobias BecherDepartment for Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany.ORCID 0000-0003-2026-7629

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionLung-protective ventilation is essential for preventing postoperative pulmonary complications. While maintaining a low driving pressure and optimising PEEP is of importance, the ideal strategy remains contentious. This study evaluated whether adjusting PEEP based on BMI, compared with standard PEEP, could reduce driving pressure and peri-operative loss of lung aeration.

methodsWe conducted a randomised controlled, patient-blinded, single-centre superiority trial with two parallel groups. Adult patients undergoing surgery with general anaesthesia who required tracheal intubation were assigned randomly to either standardised PEEP (PEEP = 5 cmH

resultsSixty patients were enrolled and allocated randomly. Adjustment of PEEP according to BMI/3 was associated with a significantly lower driving pressure, with a median (IQR [range]) of 8.9 (7.1-10.4 [5.2-14.9]) cmH DISCUSSION: In patients without major pulmonary disease who were undergoing non-cardiothoracic surgeries with tracheal intubation, adjusting PEEP based on a calculation of BMI/3 improved lung mechanics and reduced postoperative loss of lung aeration. This approach provides a straightforward and pragmatic method for individualising PEEP in patients undergoing general anaesthesia.

Indexed as

Anesthesia, GeneralBody Mass IndexPositive-Pressure RespirationAdultAgedFemaleHumansLungMaleMiddle AgedPostoperative ComplicationsSingle-Blind MethodTidal Volumebody mass indexlung‐protective ventilationlung ultrasoundpositive end‐expiratory pressurepostoperative pulmonary complications

Identifiers

PMID40551551
PMCPMC12519930

What OpenQuestion holds

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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.