Evidence map›Paper›PMID 39823110›Full record

ArticleEuropean clinical respiratory journal2025

Trends in pulmonary function in patients with Birt-Hogg-Dubé syndrome: a retrospective cohort study.

Marie Moldt Holmager, Sarah Wordenskjold Stougaard, Ole Graumann, Marianne Præstegaard, Lilian Bomme Ousager, Lars Lund, Annette Schuster, Casper Falster, Jesper Rømhild Davidsen

Abstract read
In one paragraph

Article in European clinical respiratory journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Review
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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

9 authors.

Marie Moldt HolmagerDepartment of Respiratory Medicine, Odense University Hospital, Odense, Denmark.
Sarah Wordenskjold StougaardRadiological Research and Innovation Unit (UNIFY), Department of Clinical Research, University of Southern Denmark, Odense, Denmark.
Ole GraumannRadiological Research and Innovation Unit (UNIFY), Department of Clinical Research, University of Southern Denmark, Odense, Denmark.
Marianne PræstegaardCenter for Complex and Rare Diseases, Department of Clinical Genetics, Odense University Hospital, Odense, Denmark.
Lilian Bomme OusagerCenter for Complex and Rare Diseases, Department of Clinical Genetics, Odense University Hospital, Odense, Denmark.
Lars LundDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.
Annette SchusterDepartment of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark.
Casper FalsterDepartment of Respiratory Medicine, Odense University Hospital, Odense, Denmark.
Jesper Rømhild DavidsenDepartment of Respiratory Medicine, Odense University Hospital, Odense, Denmark.ORCID https://orcid.org/0000-0003-4128-4014

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Birt-Hogg-Dubé syndrome (BHD), a rare genetic disease characterized by multiple pulmonary cysts, can lead to spontaneous pneumothorax, cutaneous hamartomas, renal cysts, and renal cell cancer. The overall aim of this study was to assess clinical characteristics of patients with BHD-emphasizing on trends in pulmonary function patterns. Methods: By use of data from electronic patient journals, we conducted a retrospective cohort study on clinical characteristics and pulmonary function tests (PFT) from patients with BHD, who were clinically followed-up in a Danish tertiary referral center for rare and interstitial lung diseases. Results: A total of 101 patients (44 men (43.6%); mean age 48.4 years (SD ± 15.9 years)) with BHD were included. Chest HRCT scans revealed pulmonary cysts in 82.2% of whom 38.6% had experienced at least one pneumothorax (median 2; IQR1-4). Baseline PFT showed FEV1/FVC ratio and RV% within normal values of predicted. In 28.7% of the patients, a slight decrease in DLco below 80% of predicted was observed (mean 86.9% ± SD 15.8%). At two years follow-up, there were no significant declines in FEV1 and FVC, nor after accounting for age, gender, and smoking. At baseline cutaneous manifestations were found in 58.4% of the patients, 47.5% had benign renal cysts, and 11.9% had renal tumours. Conclusion: More than 80% of patients with BHD presented with pulmonary cysts, but consistent with other studies all had normal PFTs at two years follow-up. We conclude that routine monitoring of pulmonary function and pulmonary follow-up may not be necessary in patients with BHD.

Indexed as

Birt-Hogg-Dubé syndromecohort studydiffuse interstitial lung diseaseorphan pulmonary diseasespulmonary function test

Identifiers

PMID39823110
PMCPMC11737049

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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.