Evidence map›Paper›PMID 40932901›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2025

COPD Severity as an Independent Predictor of Long-Term Survival in Operable Lung Cancer: A Retrospective Analysis from a High-Volume Thoracic Surgery Center.

Julia Zimmermann, Johannes Schön, Valentina Pfeiffer, Tim-Mathis Beutel, Annalena Felker, Elvira Stacher-Priehse, Fuad Damirov, Niels Reinmuth, Rudolf A Hatz, Christian P Schneider and 1 more

Abstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 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. 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

11 authors.

Julia ZimmermannDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.
Johannes SchönDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.
Valentina PfeifferDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.
Tim-Mathis BeutelDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.ORCID 0000-0003-4289-2396
Annalena FelkerDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.
Elvira Stacher-PriehseDepartment of Pathology, Asklepios Lung Clinic, Gauting, Bavaria, Germany.
Fuad DamirovDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.
Niels ReinmuthDepartment of Thoracic Oncology, Asklepios Lung Clinic, Gauting, Bavaria, Germany.
Rudolf A HatzDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.
Christian P SchneiderDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.
Mircea Gabriel StoleriuDepartment of Thoracic Surgery, Ludwig-Maximilians-University (LMU) and Asklepios Lung Clinic, Munich and Gauting, Bavaria, Germany.ORCID 0000-0002-1288-809X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: This study aims to identify predictors of long-term survival in patients with chronic obstructive pulmonary disease (COPD) undergoing anatomical resections for non-small cell lung cancer (NSCLC), with focus on COPD severity, to improve perioperative risk stratification and patient care. Patients and Methods: This retrospective study included all patients with NSCLC and COPD undergoing anatomical resections at the Lung Tumor Center Munich between 2011 and 2020. COPD severity was classified by Global Initiative for Obstructive Lung Disease criteria: Group 1 (mild/moderate obstruction, COPD I-II) and Group 2 (severe obstruction, COPD III-IV). The relationship between COPD severity and perioperative parameters was analyzed using Kaplan-Meier and Cox proportional hazard model. Results: Of 1663 NSCLC patients undergoing anatomical resections, 476 (28.6%) patients with COPD I-IV (40.5% female, median age 67.28 [60.57; 73.27] years) were included. No significant differences were observed between groups in demographics, topography, TNM classification, histology of the primary tumor, and surgical approach. Group 2 experienced more frequently prolonged mechanical ventilation >2 days (p=0.016), air leaks >5 days (p = 0.020), and arrhythmias (p=0.012). Median overall survival (OS) was reduced in Group 2 (43.73 [30.14; 57.33] vs 85.30 [67.46; 103.14] months, p=0.001). Independent predictors of reduced OS included COPD III-IV (p<0.0001), pT Conclusion: COPD severity independently predicts perioperative morbidity and long-term survival in operable NSCLC patients. Comprehensive assessment of COPD severity can help in identifying high-risk patients and optimizing perioperative care.

Indexed as

Carcinoma, Non-Small-Cell LungLung NeoplasmsPneumonectomyPulmonary Disease, Chronic ObstructiveAgedDisease-Free SurvivalFemaleFollow-Up StudiesHospitals, High-VolumeHumansMaleMiddle AgedRespiration, ArtificialRetrospective StudiesRisk AssessmentRisk FactorsCOPD I–IICOPD III–IVlong-term survivallung cancerNSCLCrisk stratification

Identifiers

PMID40932901
PMCPMC12417699

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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.