Distinct profile and prognostic impact of body composition changes in idiopathic pulmonary fibrosis and idiopathic pleuroparenchymal fibroelastosis.

Abstract:

:Change in body composition with skeletal muscle wasting, a major component of pulmonary cachexia, is associated with mortality in chronic obstructive pulmonary disease and cancer. However, its relevance in interstitial lung diseases (ILDs) remains unclear. We hypothesized changes in body composition would be associated with mortality in ILDs. We measured the cross-sectional-area (ESMCSA) and muscle attenuation (ESMMA) of erector-spinae muscles, as determined by CT-imaging, in patients with idiopathic pulmonary fibrosis (IPF; n = 131) and idiopathic pleuroparenchymal fibroelastosis (iPPFE; n = 43) and controls. Subsequently, implications with prognosis were evaluated. The ESMCSA of ILD patients, but not ESMMA, was significantly smaller than that in controls. Lower ESMCSA with decreased BMI were recorded in iPPFE patients versus IPF patients, whilst IPF patients had decreased ESMCSA without BMI decline. Lower ESMCSA in IPF patients were associated with poorer prognoses. Conversely, decreased ESMMA were associated with worse survival in iPPFE patients. Multivariate analyses showed that ESMCSA in IPF and ESMMA in iPPFE were independent risk factors for mortality. Distinct changes in body composition had prognostic significance among patients with IPF and iPPFE. Lower ESMCSA and ESMMA were independently associated with poor prognosis in IPF and iPPFE, respectively. These results suggest values to measure body composition changes in managing patients with IPF and iPPFE.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Suzuki Y,Yoshimura K,Enomoto Y,Yasui H,Hozumi H,Karayama M,Furuhashi K,Enomoto N,Fujisawa T,Nakamura Y,Inui N,Suda T

doi

10.1038/s41598-018-32478-z

subject

Has Abstract

pub_date

2018-09-19 00:00:00

pages

14074

issue

1

issn

2045-2322

pii

10.1038/s41598-018-32478-z

journal_volume

8

pub_type

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