Evidence map›Paper›PMID 41252454›Full record

ArticleInterdisciplinary cardiovascular and thoracic surgery2025

Expanding Lung Volume Reduction Surgery Indications: Outcomes in Patients Beyond Conventional National Emphysema Treatment Trial Criteria.

Christelle M Vandervelde, Anthony Meyers, Anaïs David, Sofian Bouneb, Stephanie Everaerts, Wim Janssens, Walter Weder, Laurens J Ceulemans

Abstract read
In one paragraph

Article in Interdisciplinary cardiovascular and thoracic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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.

Christelle M VanderveldeDepartment of Thoracic Surgery, University Hospitals Leuven, Leuven, Belgium.ORCID 0000-0002-6594-0314
Anthony MeyersDepartment of Thoracic Surgery, University Hospitals Leuven, Leuven, Belgium.
Anaïs DavidDepartment of Thoracic Surgery, University Hospitals Leuven, Leuven, Belgium.
Sofian BounebDepartment of Anaesthesiology, University Hospitals Leuven, Leuven, Belgium.ORCID 0009-0005-9961-7485
Stephanie EveraertsDepartment of Chronic Diseases and Metabolism Laboratory of Pneumology and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium.ORCID 0000-0003-2646-4770
Wim JanssensDepartment of Chronic Diseases and Metabolism Laboratory of Pneumology and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium.ORCID 0000-0003-1830-2982
Walter WederDepartment of Thoracic Surgery, Klinik Bethanien, Zurich, Switzerland.ORCID 0009-0008-3641-7568
Laurens J CeulemansDepartment of Thoracic Surgery, University Hospitals Leuven, Leuven, Belgium.ORCID 0000-0002-4261-7100

Funding

University Hospitals Leuven (KOOR) and research Foundation Flanders 18E2B24NUniversity Hospitals Leuven (KOOR) and research Foundation Flanders G090922N
6 · The paper itself

Abstract

objectivesLung volume reduction surgery (LVRS) is guided by strict selection criteria from the National Emphysema Treatment Trial (NETT) to minimize risk and optimize outcomes. However, emerging evidence suggests that rigid cutoffs may exclude patients who could benefit. This study aimed to identify beyond-criteria patients undergoing LVRS and compare their outcomes with standard-criteria patients.

methodsThis single-centre retrospective analysis of a prospectively maintained database included all LVRS procedures from August 2019 until November 2024. Patients were classified as beyond-criteria if they met two or more of the following: age ≥ 75 years, body mass index (BMI) < 18.5 kg/m2, forced expiratory volume in 1 second (FEV1) < 20%pred, diffusing capacity for carbon monoxide (DLCO) < 20%pred, 6-minute walk distance (6MWD) < 140 m, homogeneous emphysema, systolic pulmonary arterial pressure (sPAP) > 35 mmHg, or prior thoracic interventions. Complications (Clavien-Dindo) and functional outcomes were assessed at 3, 6, and 12 months.

resultsTwenty-one procedures were performed in 18 beyond-criteria patients versus 227 procedures in 191 standard-criteria patients. Among beyond-criteria patients: age ≥ 75 years (n = 3), BMI < 18.5 kg/m2 (n = 10), FEV1 < 20%pred (n = 5), DLCO < 20%pred (n = 1), 6MWD < 140 m (n = 1), homogeneous emphysema (n = 3), sPAP > 35 mmHg (n = 12), and prior thoracic intervention (n = 7). Complication rates were comparable (38% vs. 42%, P = .819 [95% CI, 0.93-1.10]), as were prolonged air leaks and hospital stay. One 30-day LVRS-related death (0.4%) occurred in the standard group. Functional and quality of life measures improved in both groups.

conclusionsBeyond-criteria patients can be considered for LVRS when guided by careful multidisciplinary evaluation, with meaningful improvement in experienced centers.

Indexed as

LungPatient SelectionPneumonectomyPulmonary EmphysemaAgedAged, 80 and overDatabases, FactualFemaleHumansMaleMiddle AgedPostoperative ComplicationsRecovery of FunctionRetrospective StudiesRisk FactorsTime FactorsCOPDemphysemalung volume reduction surgeryselection criteria

Identifiers

PMID41252454
PMCPMC12782724

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Registered trials

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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.