Evidence map›Paper›PMID 26264717›Full record

ArticleBMC pulmonary medicine2015

Outcome of corticosteroid administration in autoimmune pulmonary alveolar proteinosis: a retrospective cohort study.

Keiichi Akasaka, Takahiro Tanaka, Nobutaka Kitamura, Shinya Ohkouchi, Ryushi Tazawa, Toshinori Takada, Toshio Ichiwata, Etsuro Yamaguchi, Masaki Hirose, Toru Arai and 6 more

Open access · goldAbstract read
In one paragraph

Article in BMC pulmonary medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.

  1. The burden of autoimmune pulmonary alveolar proteinosis: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2026
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  8. Outcomes and outcome measures in studies of pulmonary alveolar proteinosis: a scoping review.European respiratory review : an official journal of the European Respiratory Society · 2026
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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

16 authors at 9 institutions in 1 country.

Keiichi AkasakaBioscience Medical Research Center, Niigata University Medical and Dental Hospital, 1-754 Asahimachi-dori, Niigata, 951-8520, Japan. k-akasaka@med.niigata-u.ac.jp.
Takahiro TanakaBioscience Medical Research Center, Niigata University Medical and Dental Hospital, 1-754 Asahimachi-dori, Niigata, 951-8520, Japan. belltatnk@gmail.com.
Nobutaka KitamuraBioscience Medical Research Center, Niigata University Medical and Dental Hospital, 1-754 Asahimachi-dori, Niigata, 951-8520, Japan. nktmr@m12.alpha-net.ne.jp.
Shinya OhkouchiDepartment of Respiratory Medicine, Tohoku University Graduate school of Medicine, Miyagi, Japan. ohkouchi@rm.med.tohoku.ac.jp.
Ryushi TazawaBioscience Medical Research Center, Niigata University Medical and Dental Hospital, 1-754 Asahimachi-dori, Niigata, 951-8520, Japan. ryushi@med.niigata-u.ac.jp.
Toshinori TakadaUonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan. ttakada@med.niigata-u.ac.jp.
Toshio IchiwataDepartment of Pulmonary Medicine, Tokyo Medical School, Tokyo, Japan. ichiwata@tokyo-med.ac.jp.
Etsuro YamaguchiDepartment of Respiratory and Allergy Medicine, Aichi Medical School, Aichi, Japan. etsuro@aichi-med-u.ac.jp.
Masaki HiroseClinical Research Center, NHO Kinki-Chuo Chest Medical Center, Osaka, Japan. mhirose@kch.hosp.go.jp.
Toru AraiClinical Research Center, NHO Kinki-Chuo Chest Medical Center, Osaka, Japan. to-arai@kch.hosp.go.jp.
Kentaro NakanoDepartment of Respiratory Medicine, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan. nakanokentaro@me.com.
Takahito NeiDepartment of Respiratory Medicine, Nippon Medical University of Medicine, Tokyo, Japan. kneigh@nms.ac.jp.
Haruyuki IshiiDepartment of Respiratory Medicine, Kyorin University School of Medicine, Tokyo, Japan. h141@ks.kyorin-u.ac.jp.
Tomohiro HandaDepartment of Respiratory Medicine, Kyoto University Hospital, Kyoto, Japan. hanta@kuhp.kyoto-u.ac.jp.
Yoshikazu InoueClinical Research Center, NHO Kinki-Chuo Chest Medical Center, Osaka, Japan. giichi@kch.hosp.go.jp.
Koh NakataBioscience Medical Research Center, Niigata University Medical and Dental Hospital, 1-754 Asahimachi-dori, Niigata, 951-8520, Japan. radical@med.niigata-u.ac.jp.
Niigata University Medical and Dental Hospital · JPNHO Kinki Chuo Chest Medical Center · JPAichi Medical University · JPDokkyo Medical University Saitama Medical Center · JPKyorin University · JPKyoto University Hospital · JPNippon Medical School Hospital · JPTohoku University · JPTokyo Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough no report has demonstrated the efficacy of corticosteroid therapy for autoimmune pulmonary alveolar proteinosis (aPAP), we sometimes encounter patients who have received this therapy for various reasons. However, as corticosteroids can suppress alveolar macrophage function, corticosteroid therapy might worsen disease severity and increase the risk of infections.

methodsFor this retrospective cohort study, we sent a screening form to 165 institutions asking for information on aPAP patients treated with corticosteroids. Of the resulting 45 patients screened, 31 were enrolled in this study. We collected demographic data and information about corticosteroid treatment period, dose, disease severity score (DSS) over the treatment period, and complications.

resultsDSS deteriorated during corticosteroid therapy in 23 cases (74.1 %) and the estimated overall cumulative worsening rate was 80.8 % for the total observation period. The worsening rate was significantly higher in patients treated with high-dose prednisolone (>18.9 mg/day, n = 16) than treated with low-dose prednisolone (≤18.9 mg/day, n = 15) divided by median daily dose (p < 0.02). Of patients with worsening, one died of disseminated aspergillosis and another of respiratory failure. Infections newly emerged in 6 cases during corticosteroid therapy (p < 0.05). Median serum granulocyte/macrophage colony-stimulating factor (GM-CSF) autoantibody levels were similar to previously reported data in a large cohort study.

conclusionThe results demonstrate that corticosteroid therapy may worsen DSS of aPAP, increasing the risk for infections.

Indexed as

AdolescentAdultAgedAged, 80 and overAutoantibodiesAutoimmune DiseasesChildDose-Response Relationship, DrugFemaleFollow-Up StudiesGlucocorticoidsHumansMaleMiddle AgedPrednisolonePulmonary Alveolar ProteinosisAutoantibodiesGlucocorticoidsPrednisolone

Identifiers

PMID26264717
PMCPMC4534060
OpenAlexW2144529889

What OpenQuestion holds

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LicenceCC BY
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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.