Evidence map›Paper›PMID 25943437›Full record

ArticleBMC pulmonary medicine2015

Lung MRI and impairment of diaphragmatic function in Pompe disease.

Stephan C A Wens, Pierluigi Ciet, Adria Perez-Rovira, Karla Logie, Elizabeth Salamon, Piotr Wielopolski, Marleen de Bruijne, Michelle E Kruijshaar, Harm A W M Tiddens, Pieter A van Doorn and 1 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 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.6field-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

23 citing papers in PubMed, 49 citations in OpenAlex.

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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

11 authors at 3 institutions in 1 country.

Stephan C A WensDepartment of Neurology, Erasmus MC, Rotterdam, The Netherlands. s.wens@erasmusmc.nl.
Pierluigi CietDepartment of Radiology, Erasmus MC, Rotterdam, The Netherlands. p.ciet@erasmusmc.nl.
Adria Perez-RoviraDepartment of Radiology, Erasmus MC, Rotterdam, The Netherlands. a.perezrovira@erasmusmc.nl.
Karla LogieDepartment of Pediatric Pulmonology, Erasmus MC-Sophia, Rotterdam, The Netherlands. k.logie@erasmusmc.nl.
Elizabeth SalamonDepartment of Pediatric Pulmonology, Erasmus MC-Sophia, Rotterdam, The Netherlands. Elizabeth.Salamon@health.wa.gov.au.
Piotr WielopolskiDepartment of Radiology, Erasmus MC, Rotterdam, The Netherlands. p.wielopolski@erasmusmc.nl.
Marleen de BruijneBiomedical Imaging Group Rotterdam, Departments of Radiology and Medical Informatics, Erasmus MC, Rotterdam, The Netherlands. marleen.debruijne@erasmusmc.nl.
Michelle E KruijshaarCentre for Lysosomal and Metabolic Diseases, Erasmus MC-Sophia, Rotterdam, The Netherlands. m.kruijshaar@erasmusmc.nl.
Harm A W M TiddensDepartment of Radiology, Erasmus MC, Rotterdam, The Netherlands. h.tiddens@erasmusmc.nl.
Pieter A van DoornDepartment of Neurology, Erasmus MC, Rotterdam, The Netherlands. p.a.vandoorn@erasmusmc.nl.
Ans T van der PloegCentre for Lysosomal and Metabolic Diseases, Erasmus MC-Sophia, Rotterdam, The Netherlands. a.vanderploeg@erasmusmc.nl.
Erasmus MC · NLErasmus MC - Sophia Children’s Hospital · NLErasmus University Rotterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPompe disease is a progressive metabolic myopathy. Involvement of respiratory muscles leads to progressive pulmonary dysfunction, particularly in supine position. Diaphragmatic weakness is considered to be the most important component. Standard spirometry is to some extent indicative but provides too little insight into diaphragmatic dynamics. We used lung MRI to study diaphragmatic and chest-wall movements in Pompe disease.

methodsIn ten adult Pompe patients and six volunteers, we acquired two static spirometer-controlled MRI scans during maximum inspiration and expiration. Images were manually segmented. After normalization for lung size, changes in lung dimensions between inspiration and expiration were used for analysis; normalization was based on the cranial-caudal length ratio (representing vertical diaphragmatic displacement), and the anterior-posterior and left-right length ratios (representing chest-wall movements due to thoracic muscles).

resultsWe observed striking dysfunction of the diaphragm in Pompe patients; in some patients the diaphragm did not show any displacement. Patients had smaller cranial-caudal length ratios than volunteers (p < 0.001), indicating diaphragmatic weakness. This variable strongly correlated with forced vital capacity in supine position (r = 0.88) and postural drop (r = 0.89). While anterior-posterior length ratios also differed between patients and volunteers (p = 0.04), left-right length ratios did not (p = 0.1).

conclusionsMRI is an innovative tool to visualize diaphragmatic dynamics in Pompe patients and to study chest-walland diaphragmatic movements in more detail. Our data indicate that diaphragmatic displacement may be severely disturbed in patients with Pompe disease.

Indexed as

AdultAgedCase-Control StudiesDiaphragmExhalationFemaleForced Expiratory VolumeGlycogen Storage Disease Type IIHumansInhalationLungMagnetic Resonance ImagingMaleMiddle AgedSpirometryVital Capacity

Identifiers

PMID25943437
PMCPMC4428089
OpenAlexW2114715102

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.