Evidence map›Paper›PMID 29049742›Full record

ArticleInteractive cardiovascular and thoracic surgery2018

Preoperative six-minute walk distance is associated with pneumonia after lung resection.

Keiko Hattori, Toshiaki Matsuda, Yui Takagi, Motoki Nagaya, Takayuki Inoue, Yoshihiro Nishida, Yoshinori Hasegawa, Koji Kawaguchi, Takayuki Fukui, Naoki Ozeki and 2 more

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Article in Interactive cardiovascular and thoracic surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.5field-weighted citation impact, top 10% of its field
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

21 citing papers in PubMed, 41 citations in OpenAlex.

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  14. Effects of curative-intent lung cancer therapy on functional exercise capacity and patient-reported outcomes.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 1 country.

Keiko HattoriDepartment of Rehabilitation, Nagoya University Hospital, Nagoya, Japan.
Toshiaki MatsudaDepartment of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Yui TakagiDepartment of Rehabilitation, Nagoya University Hospital, Nagoya, Japan.
Motoki NagayaDepartment of Rehabilitation, Nagoya University Hospital, Nagoya, Japan.
Takayuki InoueDepartment of Rehabilitation, Nagoya University Hospital, Nagoya, Japan.
Yoshihiro NishidaDepartment of Rehabilitation, Nagoya University Hospital, Nagoya, Japan.
Yoshinori HasegawaDepartment of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Koji KawaguchiDepartment of Thoracic Surgery, Nagoya University School of Medicine, Nagoya, Japan.
Takayuki FukuiDepartment of Thoracic Surgery, Nagoya University School of Medicine, Nagoya, Japan.
Naoki OzekiDepartment of Thoracic Surgery, Nagoya University School of Medicine, Nagoya, Japan.
Kohei YokoiDepartment of Thoracic Surgery, Nagoya University School of Medicine, Nagoya, Japan.
Satoru ItoDepartment of Rehabilitation, Nagoya University Hospital, Nagoya, Japan.
Nagoya University · JPNagoya University Hospital · JPAichi Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesLittle is known about the relationship between preoperative physical fitness and postoperative pneumonia after lung resection. We examined the association between preoperative 6-min walk distance (6MWD) and postoperative pneumonia.

methodsA retrospective study was conducted on patients with malignant lung tumours who were scheduled to undergo lung resection at Nagoya University Hospital from January 2014 to December 2015. Preoperative pulmonary function tests and the 6-min walk test were assessed. A logistic regression model and receiver operating characteristic curves were used to analyse clinical variables and compare the performance on 6MWD, forced expiratory volume in 1 s and diffusion capacity of the lung for carbon monoxide.

resultsThe data from a total of 321 patients including 283 with primary lung cancer and 38 with metastatic lung tumours were analysed. Pneumonia developed in 13 patients and caused longer hospital stays after surgery. The preoperative 6MWD of patients with pneumonia was significantly lower than that without pneumonia (425 vs 500 m, P = 0.002). In receiver operating characteristic analysis, 6MWD ≤ 450 m was a threshold for predicting postoperative pneumonia with 69.2% sensitivity and 71.1% specificity. A 6MWD ≤ 450 m, forced expiratory volume in 1 s <80% of the predicted value, diffusion capacity of the lung for carbon monoxide <80% of the predicted value, serum albumin <3.5 g/dl and blood loss during surgery ≥200 g were significantly associated with postoperative pneumonia in a logistic model.

conclusionsPreoperative 6MWD was significantly associated with postoperative pneumonia in patients who underwent lung resection for malignancies.

Indexed as

Walk TestAgedExercise ToleranceFemaleForced Expiratory VolumeHumansLung NeoplasmsLung Volume MeasurementsMaleMiddle AgedPneumonectomyPneumoniaPostoperative ComplicationsPredictive Value of TestsRetrospective StudiesROC Curve6-Min walk testLung cancerLung resectionPostoperative pneumoniaPulmonary metastasisRisk factor

Identifiers

PMID29049742
OpenAlexW2759753217

What OpenQuestion holds

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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.