Evidence map›Paper›PMID 29694376›Full record

Observational studyPloS one2018

Pulmonary arterial enlargement predicts long-term survival in COPD patients.

Juan P de-Torres, Ana Ezponda, Ana B Alcaide, Arantza Campo, Juan Berto, Jessica Gonzalez, Javier J Zulueta, Ciro Casanova, Luisa Elena Rodriguez-Delgado, Bartolome R Celli and 1 more

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
2.2field-weighted citation impact, top 12% 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. The impact of body mass index on mortality in COPD: an updated dose-response meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2024
    Pooled it
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  5. Consensus document for the selection of lung transplant candidates: An update from the International Society for Heart and Lung Transplantation.The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2021
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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 4 institutions in 2 countries.

Juan P de-TorresPulmonary Department, Clínica Universidad de Navarra, Pamplona, Spain.ORCID 0000-0003-1231-4894
Ana EzpondaRadiology Department, Clínica Universidad de Navarra, Pamplona, Spain.
Ana B AlcaidePulmonary Department, Clínica Universidad de Navarra, Pamplona, Spain.
Arantza CampoPulmonary Department, Clínica Universidad de Navarra, Pamplona, Spain.
Juan BertoPulmonary Department, Clínica Universidad de Navarra, Pamplona, Spain.
Jessica GonzalezPulmonary Department, Clínica Universidad de Navarra, Pamplona, Spain.
Javier J ZuluetaPulmonary Department, Clínica Universidad de Navarra, Pamplona, Spain.
Ciro CasanovaPulmonary Department, Tenerife, Spain.
Luisa Elena Rodriguez-DelgadoRadiology Department, Hospital Ntra Sra de Candelaria, Tenerife, Spain.
Bartolome R CelliPulmonary Department, Brigham and Women Hospital, Boston, MA, United States of America.
Gorka BastarrikaRadiology Department, Clínica Universidad de Navarra, Pamplona, Spain.
Clinica Universidad de Navarra · ESBrigham and Women's Hospital · USHospital Universitario Nuestra Señora de Candelaria · ESObservatorio de la Inmigración de Tenerife · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationalePulmonary artery enlargement (PAE) is associated with exacerbations in Chronic Obstructive Pulmonary Disease (COPD) and with survival in moderate to severe patients. The potential role of PAE in survival prediction has not been compared with other clinical and physiological prognostic markers.

methodsIn 188 patients with COPD, PA diameter was measured on a chest CT and the following clinical and physiological parameters registered: age, gender, smoking status, pack-years history, dyspnea, lung function, exercise capacity, Body Mass Index, BODE index and history of exacerbations in year prior to enrolment. Proportional Cox regression analysis determined the best predictor of all cause survival.

resultsDuring 83 months (±42), 43 patients died. Age, pack-years history, smoking status, BMI, FEV1%, six minute walking distance, Modified Medical Research Council dyspnea scale, BODE index, exacerbation rate prior to enrollment, PA diameter and PAE (diameter≥30mm) were associated with survival. In the multivariable analysis, age (HR: 1.08; 95%CI: 1.03-1.12, p<0.001) and PAE (HR: 2.78; 95%CI: 1.35-5.75, p = 0.006) were the most powerful parameters associated with all-cause mortality.

conclusionsIn this prospective observational study of COPD patients with mild to moderate airflow limitation, PAE was the best predictor of long-term survival along with age.

Indexed as

Body Mass IndexDyspneaExercise TestFemaleFollow-Up StudiesHumansKaplan-Meier EstimateMaleMiddle AgedMultivariate AnalysisOrgan SizePrognosisProportional Hazards ModelsPulmonary ArteryPulmonary Disease, Chronic ObstructiveRespiratory Function Tests

Identifiers

PMID29694376
PMCPMC5918899
OpenAlexW2800599246

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.