Evidence map›Paper›PMID 26435780›Full record

ArticleWorld journal of radiology2015

Pulmonary fibrosis and emphysema: Is the emphysema type associated with the pattern of fibrosis?

Anastasia Oikonomou, Paraskevi Mintzopoulou, Argyris Tzouvelekis, Petros Zezos, George Zacharis, Anastasios Koutsopoulos, Demosthenes Bouros, Panos Prassopoulos

Open access · hybridAbstract read
In one paragraph

Article in World journal of radiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.4field-weighted citation impact, top 16% 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

6 citing papers in PubMed, 13 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

8 authors at 3 institutions in 3 countries.

Anastasia OikonomouAnastasia Oikonomou, Paraskevi Mintzopoulou, Panos Prassopoulos, Department of Radiology, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece.
Paraskevi MintzopoulouAnastasia Oikonomou, Paraskevi Mintzopoulou, Panos Prassopoulos, Department of Radiology, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece.
Argyris TzouvelekisAnastasia Oikonomou, Paraskevi Mintzopoulou, Panos Prassopoulos, Department of Radiology, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece.
Petros ZezosAnastasia Oikonomou, Paraskevi Mintzopoulou, Panos Prassopoulos, Department of Radiology, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece.
George ZacharisAnastasia Oikonomou, Paraskevi Mintzopoulou, Panos Prassopoulos, Department of Radiology, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece.
Anastasios KoutsopoulosAnastasia Oikonomou, Paraskevi Mintzopoulou, Panos Prassopoulos, Department of Radiology, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece.
Demosthenes BourosAnastasia Oikonomou, Paraskevi Mintzopoulou, Panos Prassopoulos, Department of Radiology, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece.
Panos PrassopoulosAnastasia Oikonomou, Paraskevi Mintzopoulou, Panos Prassopoulos, Department of Radiology, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece.
Democritus University of Thrace · GRHealth Sciences Centre · CASunnybrook Health Science Centre · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo investigate whether the predominant emphysema type is associated with the high resolution computed tomography (HRCT) pattern of fibrosis in combined pulmonary fibrosis and emphysema (CPFE).

methodsFifty-three smokers with upper lobe emphysema and lower lobe pulmonary fibrosis on - HRCT - were retrospectively evaluated. Patients were stratified into 3 groups according to the predominant type of emphysema: Centrilobular (CLE), paraseptal (PSE), CLE = PSE. Patients were also stratified into 3 other groups according to the predominant type of fibrosis on HRCT: Typical usual interstitial pneumonia (UIP), probable UIP and nonspecific interstitial pneumonia (NSIP). HRCTs were scored at 5 predetermined levels for the coarseness of fibrosis (Coarseness), extent of emphysema (emphysema), extent of interstitial lung disease (TotExtILD), extent of reticular pattern not otherwise specified (RetNOS), extent of ground glass opacity with traction bronchiectasis (extGGOBx), extent of pure ground glass opacity and extent of honeycombing. HRCT mean scores, pulmonary function tests, diffusion capacity (DLCO) and systolic pulmonary arterial pressure were compared among the groups.

resultsThe predominant type of emphysema was strongly correlated with the predominant type of fibrosis. The centrilobular emphysema group exhibited a significantly higher extent of emphysema (P < 0.001) and a lower extent of interstitial lung disease (P < 0.002), reticular pattern not otherwise specified (P < 0.023), extent of ground glass opacity with traction bronchiectasis (P < 0.002), extent of honeycombing (P < 0.001) and coarseness of fibrosis (P < 0.001) than the paraseptal group. The NSIP group exhibited a significantly higher extent of emphysema (P < 0.05), total lung capacity (P < 0.01) and diffusion capacity (DLCO) (P < 0.05) than the typical UIP group. The typical UIP group exhibited a significantly higher extent of interstitial lung disease, extent of reticular pattern not otherwise specified, extent of ground glass opacity with traction bronchiectasis, extent of honeycombing and coarseness of fibrosis (0.039 > P > 0.000). Although the pulmonary arterial pressure was higher in typical UIP group relative to the NSIP group, the difference was not statistically significant.

conclusionIn CPFE patients, paraseptal emphysema is associated more with UIP-HRCT pattern and higher extent of fibrosis than centrilobular emphysema.

Indexed as

CentrilobularEmphysemaHigh resolution computed tomographyNonspecific interstitial pneumonia patternParaseptalPulmonary fibrosisUsual interstitial pneumonia pattern

Identifiers

PMID26435780
PMCPMC4585953
OpenAlexW2413124061

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.