Evidence map›Paper›PMID 39448000›Full record

ArticleThe Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation2025

Identification and validation of a threshold for early posttransplant bronchoalveolar fluid hyaluronan that distinguishes lung recipients at risk for chronic lung allograft dysfunction.

Jamie L Todd, Jeremy M Weber, Francine L Kelly, Andrew Nagler, Patrick McArthur, Lerin Eason, Jeeyon G Rim, Courtney W Frankel, John A Belperio, Marie Budev and 10 more

Abstract readMulticenter StudyValidation Study
In one paragraph

Article in The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

20 authors.

Jamie L ToddDepartment of Medicine, Duke University Medical Center, Durham, North Carolina; Duke Clinical Research Institute, Durham, North Carolina. Electronic address: jamie.todd@duke.edu.
Jeremy M WeberDuke Clinical Research Institute, Durham, North Carolina.
Francine L KellyDepartment of Medicine, Duke University Medical Center, Durham, North Carolina.
Andrew NaglerDepartment of Medicine, Duke University Medical Center, Durham, North Carolina.
Patrick McArthurDepartment of Medicine, Duke University Medical Center, Durham, North Carolina.
Lerin EasonDepartment of Medicine, Duke University Medical Center, Durham, North Carolina.
Jeeyon G RimDepartment of Medicine, Duke University Medical Center, Durham, North Carolina.
Courtney W FrankelDepartment of Medicine, Duke University Medical Center, Durham, North Carolina.
John A BelperioDepartment of Medicine, University of California Los Angeles, Los Angeles, California.
Marie BudevDepartment of Medicine, Cleveland Clinic, Cleveland, Ohio, United States.
Tereza MartinuDepartment of Medicine, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada.
Kunal PatelDepartment of Surgery, Duke University Medical Center, Durham, North Carolina.
John M ReynoldsDepartment of Medicine, Duke University Medical Center, Durham, North Carolina.
Pali D ShahDepartment of Medicine, Johns Hopkins University, Baltimore, Maryland.
Lianne G SingerDepartment of Medicine, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada.
Laurie D SnyderDepartment of Medicine, Duke University Medical Center, Durham, North Carolina; Duke Clinical Research Institute, Durham, North Carolina.
Wayne TsuangDepartment of Medicine, Cleveland Clinic, Cleveland, Ohio, United States.
S Sam WeigtDepartment of Medicine, University of California Los Angeles, Los Angeles, California.
Megan L NeelyDuke Clinical Research Institute, Durham, North Carolina; Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina.
Scott M PalmerDepartment of Medicine, Duke University Medical Center, Durham, North Carolina; Duke Clinical Research Institute, Durham, North Carolina.

Funding

The Lung Transplant Clinical Trials Network (LT-CTN)U01AI113315 · NIAID · DUKE UNIVERSITY · PI PALMER, SCOTT M · 2014 to 2018
$12.9M
NIAID NIH HHS U01 AI113315
6 · The paper itself

Abstract

backgroundFew tools exist for the early identification of patients at risk for chronic lung allograft dysfunction (CLAD). We previously showed hyaluronan (HA), a matrix molecule that regulates lung inflammation and fibrosis, accumulates in bronchoalveolar lavage fluid (BALF) and blood in CLAD. We aimed to determine if early posttransplant HA elevations inform CLAD risk.

methodsHA was quantified in 3,080 BALF and 1,323 blood samples collected over the first posttransplant year in 743 adult lung recipients at 5 centers. The relationship between BALF or blood HA and CLAD was assessed using Cox models with a time-dependent binary covariate for "elevated" HA. Potential thresholds for elevated HA were examined using a grid search between the 50th and 85th percentile. The optimal threshold was identified using fit statistics, and the association between the selected threshold and CLAD was internally validated through iterative resampling. A multivariable Cox model using the selected threshold was performed to evaluate the association of elevated HA with CLAD, considering other factors that may influence CLAD risk.

resultsBALF HA levels >19.1 ng/ml (65th percentile) had the largest hazard ratio (HR) for CLAD (HR 1.70, 95% confidence interval [CI] 1.25-1.31; p < 0.001), optimized fit statistics, and demonstrated robust reproducibility. In a multivariable model, the occurrence of BALF HA >19.1 ng/ml in the first posttransplant year conferred a 66% increase in the hazards for CLAD (adjusted HR 1.66, 95% CI 1.19-2.32; p = 0.003). Blood HA was not significantly associated with CLAD.

conclusionsWe identified and validated a precise threshold for BALF HA in the first posttransplant year that distinguishes patients at increased CLAD risk.

Indexed as

Bronchoalveolar Lavage FluidHyaluronic AcidLung TransplantationPrimary Graft DysfunctionAdultAllograftsBiomarkersChronic DiseaseFemaleFollow-Up StudiesHumansMaleMiddle AgedRetrospective StudiesRisk AssessmentRisk FactorsBiomarkersHyaluronic Acidbronchoalveolar lavage fluidchronic lung allograft dysfunctionhyaluronanlung transplantation

Identifiers

PMID39448000
PMCPMC11850201

What OpenQuestion holds

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Registered trials

None linked

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.