Evidence map›Paper›PMID 41974517›Full record

Observational studyThe Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation2026

Acute lung allograft dysfunction predicts lung allograft failure: Construct validity of the 2026 International Society for Heart and Lung Transplantation spirometric definition.

John R Greenland, Ciara M Shaver, Krishna Pandya, Michael S Mulligan, Michaela R Anderson, Daniel R Calabrese, Jason D Christie, Lung Transplant Outcomes Group

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation, 2026. 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

8 authors.

John R GreenlandDepartment of Medicine, University of California San Francisco, San Francisco, CA; San Francisco VA Health Care System, San Francisco, CA. Electronic address: john.greenland@ucsf.edu.
Ciara M ShaverDepartments of Medicine and Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN.
Krishna PandyaDepartment of Medicine, University of Pennsylvania, Philadelphia, PA.
Michael S MulliganUniversity of Washington, Seattle, WA.
Michaela R AndersonDepartment of Medicine, University of Pennsylvania, Philadelphia, PA.
Daniel R CalabreseDepartment of Medicine, University of California San Francisco, San Francisco, CA; San Francisco VA Health Care System, San Francisco, CA.
Jason D ChristieDepartment of Medicine, University of Pennsylvania, Philadelphia, PA.
Lung Transplant Outcomes Group

Funding

Long Term Follow up of the Lung Transplant Outcomes Group CohortU01HL145435 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI CHRISTIE, JASON D, PALMER, SCOTT M · 2019 to 2025
$10.2M
Clinical Risk Factors for Primary Graft DysfunctionR01HL087115 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI CHRISTIE, JASON D · 2007 to 2017
$7.1M
Genetics of primary graft dysfunctionR01HL081619 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI CHRISTIE, JASON D · 2007 to 2011
$3.9M
Airway epithelial cell and lymphocyte interactions in chronic lung allograft dysfunction pathogenesisR01HL161048 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOHN GREENLAND, TEREZA MARTINU · 2022 to 2026
$3.3M
The Clinical and Molecular Impacts of Lung Primary Graft DysfunctionU01HL163294 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI JOHN GREENLAND, JOHN F MCDYER · 2022 to 2026
$2.2M
BLRD VA IK2 BX005301CSRD VA I01 CX002011NHLBI NIH HHS R01 HL081619NHLBI NIH HHS R01 HL087115NHLBI NIH HHS R01 HL161048NHLBI NIH HHS U01 HL145435NHLBI NIH HHS U01 HL163294
6 · The paper itself

Abstract

introductionAcute lung allograft dysfunction (ALAD) has been proposed as a screening criterion to identify lung transplant recipients at increased risk for graft loss. ALAD was defined formally in a 2026 International Society for Heart and Lung Transplantation (ISHLT) Delphi consensus statement but has not been empirically evaluated. We sought to test the construct validity of the ISHLT ALAD definition by testing the hypothesis that ALAD is associated with increased risk of graft failure.

methodsWe included 86,885 spirometry measurements from 2,877 participants in the 8-center Lung Transplant Outcomes Group cohort. ALAD was defined as a ≥10% decline in FEV1 from the maximum value over the preceding 180 days and coded along with 90-day follow-up categories of resolved, persistent, progressive, and rapidly progressive. We assessed whether ALAD classifications diverged in predictions of time to death or re-transplantation in multivariable-adjusted time-dependent and landmark Cox proportional hazards models.

resultsALAD had a prevalence of 15%. While resolution was seen in 40%, ALAD conferred a 4.93-fold graft failure hazard (95% CI 4.47-5.45, 7.4 years median follow-up), independent of concurrent chronic or baseline lung allograft dysfunction (CLAD or BLAD) status. Resolved ALAD was not associated with increased graft failure risk, but persistent, progressive, rapidly progressive, and no follow-up FEV1 ALAD categories were associated with increasing hazards for graft failure. A 10-percent threshold for FEV1 decline and a 180-day window to set the FEV1 baseline demonstrated optimal discrimination.

conclusionThe 2026 ISHLT spirometric ALAD definitions identify graft failure risk, supporting their relevance in clinical interventions and further research.

Indexed as

Graft RejectionLung TransplantationPrimary Graft DysfunctionSocieties, MedicalSpirometryAcute DiseaseAllograftsFemaleFollow-Up StudiesHumansMaleMiddle AgedAcute lung allograft dysfunction (ALAD)Chronic lung allograft dysfunction (CLAD)Consensus validationGraft failureLung transplantationSpirometry

Identifiers

PMID41974517
PMCPMC13552345

What OpenQuestion holds

Textmetadata
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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.