Evidence map›Paper›PMID 33494126›Full record

ArticleCancer research and treatment2021

Pulmonary Metastasectomy in Colorectal Cancer: A Population-Based Retrospective Cohort Study Using the Korean National Health Insurance Database.

Woo Sik Yu, Mi Kyung Bae, Jung Kyu Choi, Young Ki Hong, In Kyu Park

Abstract read
In one paragraph

Article in Cancer research and treatment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 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.

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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Efficacy of Metastasectomy for Metastatic Bladder Cancer: A Systematic Review and Meta-Analysis.International journal of urology : official journal of the Japanese Urological Association · 2025
    Pooled it
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  13. The Pulmonary Metastasectomy in Colorectal Cancer cohort study: Analysis of case selection, risk factors and survival in a prospective observational study of 512 patients.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2021
    Observational
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

5 authors.

Woo Sik YuDepartment of Thoracic and Cardiovascular Surgery, Ajou University School of Medicine, Suwon, Korea.
Mi Kyung BaeDepartment of Thoracic and Cardiovascular Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
Jung Kyu ChoiInstitute of Health Insurance and Clinical Research, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
Young Ki HongDepartment of General Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
In Kyu ParkDepartment of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.

Funding

National Health Insurance Service 2016-20-009
6 · The paper itself

Abstract

purposeThe study aimed to investigate the current status and prognostic factors for overall survival in patients who had undergone pulmonary metastasectomy for colorectal cancer. MATERIALS AND

methodsThe data of 2,573 patients who had undergone pulmonary metastasectomy after surgery for colorectal cancer between January 2009 and December 2014 were extracted from the Korean National Health Insurance Service claims database. Patient-, colorectal cancer-, pulmonary metastasis-, and hospital-related factors were analyzed using the Kaplan-Meier method, log-rank test, and Cox proportional hazards analysis to identify prognostic factors for overall survival after pulmonary metastasectomy.

resultsThe mean age of the patients was 60.9±10.5 years; 66.2% and 79.1% of the participants were male and had distally located colorectal cancer, respectively. Wedge resection (71.7%) was the most frequent extent of pulmonary resection; 21.8% of the patients underwent repeated pulmonary metastasectomies; 73% of pulmonary metastasectomy cases were performed in tertiary hospitals; 53.9% of patients were treated in Seoul area; 82% of patients received chemotherapy in conjunction with pulmonary metastasectomy. The median survival duration was 51.8 months. The 3- and 5-year overall survival rates were 67.7% and 39.4%, respectively. In multivariate analysis, female sex, distally located colorectal cancer, pulmonary metastasectomy-only treatment, and high hospital volume (> 10 pulmonary metastasectomy cases/yr) were positive prognostic factors for survival.

conclusionPulmonary metastasectomy seemed to provide long-term survival of patients with colorectal cancer. The female sex, presence of distally located colorectal cancer, and performance of pulmonary metastasectomy in high-volume centers were positive prognostic factors for survival.

Indexed as

AdultAgedAged, 80 and overColorectal NeoplasmsFemaleFollow-Up StudiesHumansLung NeoplasmsMaleMetastasectomyMiddle AgedNational Health ProgramsPneumonectomyPrognosisRepublic of KoreaRetrospective StudiesColorectal neoplasmsLungMetastasectomyPrognosisSurvival

Identifiers

PMID33494126
PMCPMC8524016

What Socratic holds

Textmetadata
LicenceCC BY-NC
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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 Socratic graph.