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Syndrome of Combined Pulmonary Fibrosis and Emphysema: An Official ATS/ERS/JRS/ALAT Research Statement.

Authors :
Cottin V
Selman M
Inoue Y
Wong AW
Corte TJ
Flaherty KR
Han MK
Jacob J
Johannson KA
Kitaichi M
Lee JS
Agusti A
Antoniou KM
Bianchi P
Caro F
Florenzano M
Galvin L
Iwasawa T
Martinez FJ
Morgan RL
Myers JL
Nicholson AG
Occhipinti M
Poletti V
Salisbury ML
Sin DD
Sverzellati N
Tonia T
Valenzuela C
Ryerson CJ
Wells AU
Source :
American journal of respiratory and critical care medicine [Am J Respir Crit Care Med] 2022 Aug 15; Vol. 206 (4), pp. e7-e41.
Publication Year :
2022

Abstract

Background: The presence of emphysema is relatively common in patients with fibrotic interstitial lung disease. This has been designated combined pulmonary fibrosis and emphysema (CPFE). The lack of consensus over definitions and diagnostic criteria has limited CPFE research. Goals: The objectives of this task force were to review the terminology, definition, characteristics, pathophysiology, and research priorities of CPFE and to explore whether CPFE is a syndrome. Methods: This research statement was developed by a committee including 19 pulmonologists, 5 radiologists, 3 pathologists, 2 methodologists, and 2 patient representatives. The final document was supported by a focused systematic review that identified and summarized all recent publications related to CPFE. Results: This task force identified that patients with CPFE are predominantly male, with a history of smoking, severe dyspnea, relatively preserved airflow rates and lung volumes on spirometry, severely impaired Dl <subscript>CO</subscript> , exertional hypoxemia, frequent pulmonary hypertension, and a dismal prognosis. The committee proposes to identify CPFE as a syndrome, given the clustering of pulmonary fibrosis and emphysema, shared pathogenetic pathways, unique considerations related to disease progression, increased risk of complications (pulmonary hypertension, lung cancer, and/or mortality), and implications for clinical trial design. There are varying features of interstitial lung disease and emphysema in CPFE. The committee offers a research definition and classification criteria and proposes that studies on CPFE include a comprehensive description of radiologic and, when available, pathological patterns, including some recently described patterns such as smoking-related interstitial fibrosis. Conclusions: This statement delineates the syndrome of CPFE and highlights research priorities.

Details

Language :
English
ISSN :
1535-4970
Volume :
206
Issue :
4
Database :
MEDLINE
Journal :
American journal of respiratory and critical care medicine
Publication Type :
Academic Journal
Accession number :
35969190
Full Text :
https://doi.org/10.1164/rccm.202206-1041ST