Evidence map›Paper›PMID 33549601›Full record

ArticleChest2021

Ultra-Small Lung Cysts Impair Diffusion Without Obstructing Air Flow in Lymphangioleiomyomatosis.

Brianna P Matthew, Amir M Hasani, Yun-Ching Chen, Mehdi Pirooznia, Mario Stylianou, Shirley F Rollison, Tania R Machado, Nora M Quade, Amanda M Jones, Patricia Julien-Williams and 4 more

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Chest, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00001465 (Characterization of the Pathogenesis of Lymphangioleiomyomatosis), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.2field-weighted citation impact, top 23% 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.

NCT00001465 recruitingnot on this map

Characterization of the Pathogenesis of Lymphangioleiomyomatosis (LAM)

TypeobservationalSponsorNational Heart, Lung, and Blood Institute (NHLBI)Ran1995Enrolled2,000ConditionsLung Disease, Pneumothorax, Tuberous Sclerosis, LymphangioleiomyomatosisArmsToshibia Aquilion One CT
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 11 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Lymphangioleiomyomatosis: circulating levels of FGF23 and pulmonary diffusion.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2023
    Article
  9. 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

14 authors at 2 institutions in 1 country.

Brianna P MatthewNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Amir M HasaniNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Yun-Ching ChenNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Mehdi PiroozniaNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Mario StylianouNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Shirley F RollisonNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Tania R MachadoNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Nora M QuadeNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Amanda M JonesNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Patricia Julien-WilliamsNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Angelo Taveira-DaSilvaNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Marcus Y ChenNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Joel MossNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.
Han WenNational Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD. Electronic address: han.wen@nih.gov.
National Institutes of Health · USNational Heart Lung and Blood Institute · US

Funding

Characterization of the Pathogenesis of Lymphangioleiomyomatosis (LAM)ZIAHL002541 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI MOSS, JOEL · 2009 to 2025
$47.7M
Cardiovascular CT Clinical ResearchZIAHL006220 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI CHEN, MARCUS · 2017 to 2025
$22.5M
X-ray microscopy for non-invasive biological imagingZIAHL006141 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI WEN, HAN · 2011 to 2025
$13.9M
Bioinformatics CoreZICHL006228 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI PIROOZNIA, MEHDI · 2017 to 2021
$6.6M
6 · The paper itself

Abstract

backgroundLymphangioleiomyomatosis (LAM) is a rare lung disease found primarily in women of childbearing age, characterized by the formation of air-filled cysts, which may be associated with reductions in lung function. An experimental, regional ultra-high resolution CT scan identified an additional volume of cysts relative to standard chest CT imaging, which consisted primarily of ultra-small cysts. RESEARCH QUESTION: What is the impact of these ultra-small cysts on the pulmonary function of patients with LAM? STUDY DESIGN AND

methodsA group of 103 patients with LAM received pulmonary function tests and a CT examination in the same visit. Cyst score, the percentage lung volume occupied by cysts, was measured by using commercial software approved by the US Food and Drug Administration. The association between cyst scores and pulmonary function tests of diffusing capacity of the lungs for carbon monoxide (Dlco) (% predicted), FEV

resultsThe additional cyst volume identified by the experimental, higher resolution scan consisted of cysts of 2.2 ± 0.8 mm diameter on average and are thus labeled the "ultra-small cyst fraction." It accounted for 27.9 ± 19.0% of the total cyst volume among the patients. The resulting adjusted, whole-lung cyst scores better explained the variance of Dlco (P < .001 adjusted for multiple comparisons) but not FEV

interpretationThe ultra-small cysts primarily contributed to the reduction in Dlco, with minimal effects on FEV CLINICAL

trial registrationClinicalTrials.gov; No.: NCT00001465; URL: www.clinicaltrials.gov.

Indexed as

Artificial OrgansPrinting, Three-DimensionalAirway ObstructionCystsDiffusionHumansLungLung NeoplasmsLymphangioleiomyomatosisRespiratory Function TestsTomography, X-Ray ComputedWork of Breathing

Identifiers

PMID33549601
PMCPMC8295912
OpenAlexW3128409991

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.