Evidence map›Paper›PMID 40529768›Full record

ArticleJournal of thoracic disease2025

Predictors of successful closure following open-window thoracostomy in patients with empyema: a single-center retrospective cohort study.

Hiroki Matsumiya, Masataka Mori, Katsuma Yoshimatsu, Rintaro Oyama, Natsumasa Nishizawa, Masatoshi Kanayama, Akihiro Taira, Shinji Shinohara, Taiji Kuwata, Masaru Takenaka and 2 more

Abstract read
In one paragraph

Article in Journal of thoracic disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Comparative analysis of techniques for open-window thoracostomy.Respiratory research & clinical practice · 2026
    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

12 authors.

Hiroki MatsumiyaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Masataka MoriSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Katsuma YoshimatsuSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Rintaro OyamaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Natsumasa NishizawaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Masatoshi KanayamaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Akihiro TairaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Shinji ShinoharaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Taiji KuwataSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Masaru TakenakaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Koji KurodaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Fumihiro TanakaSecond Department of Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Open-window thoracostomy (OWT) is an effective life-saving treatment for refractory empyema. Nonetheless, the patients' mental and physical suffering due to OWT is not minimal, and open-window closure is desirable if infection control is possible. When planning a treatment strategy after OWT, it is important to predict whether open-window closure is possible before OWT. This study aimed to identify factors related to open-window closure based on patient background factors before OWT. Methods: This observational retrospective cohort study included 42 patients with empyema who underwent OWT at a single institution over a 10-year period from April 2011 to March 2021. Cases in which closure was possible (closure group) were directly compared with cases in which closure was not possible (non-closure group). To identify the factors affecting closure, a logistic regression analysis was conducted to explore the patient background factors immediately before OWT. Results: Closure was possible in 20 patients (closure group) but was not in 22 patients (non-closure group). The closure methods employed for closure were omentum filling in 11 patients, muscle flap filling in 6 patients, breast tissue filling in 1 patient, spontaneous closure in 3 patients, and vacuum-assisted closure (VAC) in 2 patients. The median duration of the open window in the closed-window group was 242 days (35-1,880 days). The strong factors influencing window closure were "no malignant tumor" [odds ratio (OR): 2.68, 95% confidence interval (CI): 0.77-9.38, P=0.12], "no fistula" (OR: 3.41, 95% CI: 0.74-15.68, P=0.12), "age <70 years" (OR: 2.8, 95% CI: 0.78-9.99, P=0.11)", and "hemoglobin (Hb) level ≥9.0 g/dL" (OR: 2.77, 95% CI: 0.69-11.08, P=0.15)," with a significant difference observed for "performance status (PS) 0/1" (OR: 7.0, 95% CI: 1.729-28.336, P=0.006). Conclusions: The PS before OWT is an important factor that affects open-window closure. By preoperatively informing patients with poor PS regarding the possibility of the window not being closed after surgery, we believe that patients and their families will be able to make the necessary adjustments and informed decisions.

Indexed as

closureempyemaOpen-window thoracostomy (OWT)performance status (PS)

Identifiers

PMID40529768
PMCPMC12170275

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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.