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Interstitial lung abnormalities in treatment-naïve advanced non-small-cell lung cancer patients are associated with shorter survival.

Abstract：

OBJECTIVE:Interstitial lung diseases are associated with increased risk of lung cancer. The prevalence of ILA at diagnosis of advanced non-small-cell lung cancer (NSCLC) and its impact on overall survival (OS) remain to be investigated. MATERIALS AND METHOD:The study included 120 treatment-naïve stage IV NSCLC patients (53 males, 67 females). ILA was scored on CT prior to any systemic therapy using a 4-point scale [0=no evidence of ILA, 1=equivocal for ILA, 2=suspicious for ILA, 3=ILA] by a sequential reading method previously reported. ILA scores of 2 or 3 indicated the presence of ILA. RESULTS:ILA was present in 17 patients (14%) with advanced NSCLC prior to any treatment (score3: n=2, score2: n=15). These 17 patients were significantly older (median age: 69 vs. 63, p=0.04) and had a heavier smoking history (median: 40 vs. 15.5 pack-year, p=0.003) than those with ILA score 0 or 1. Higher ILA scores were associated with shorter OS (p=0.001). Median OS of the 17 patients with ILA was 7.2 months [95%CI: 2.9-9.4] compared to 14.8 months [95%CI: 11.1-18.4] in patients with ILA score 0 or 1 (p=0.002). In a multivariate model, the presence of ILA remained significant for increased risk for death (HR=2.09, p=0.028) after adjusting for first-line systemic therapy (chemotherapy, p<0.001; TKI, p<0.001; each compared to no therapy) and pack years of smoking (p=0.40). CONCLUSION:Radiographic ILA was present in 14% of treatment-naïve advanced NSCLC patients. Higher ILA scores were associated with shorter OS, indicating that ILA could be a marker of shorter survival in advanced NSCLC.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Nishino M,Cardarella S,Dahlberg SE,Araki T,Lydon C,Jackman DM,Rabin MS,Hatabu H,Johnson BE

doi

10.1016/j.ejrad.2015.01.021

subject

Has Abstract

pub_date

2015-05-01 00:00:00

pages

998-1004

issue

5

eissn

0720-048X

issn

1872-7727

pii

S0720-048X(15)00064-9

journal_volume

84

pub_type

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