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Clinical Characteristics of Connective Tissue Disease-Associated Interstitial Lung Disease in 1,044 Chinese Patients.

Authors :
Yang Hu
Liu-Sheng Wang
Ya-Ru Wei
Shan-Shan Du
Yu-Kui Du
Xian He
Nan Li
Ying Zhou
Qiu-Hong Li
Yi-Liang Su
Fen Zhang
Li Shen
Dong Weng
Brown, Kevin K.
Hui-Ping Li
Hu, Yang
Wang, Liu-Sheng
Wei, Ya-Ru
Du, Shan-Shan
Du, Yu-Kui
Source :
CHEST. Jan2016, Vol. 149 Issue 1, p201-208. 8p.
Publication Year :
2016

Abstract

<bold>Background: </bold>Because the prevalence of connective tissue disease (CTD)-associated interstitial lung disease (ILD; CTD-ILD) in China is unknown, we wanted to analyze the clinical characteristics of this disease in Chinese patients.<bold>Methods: </bold>The medical records of patients who received a diagnosis of ILD and treated in Shanghai Pulmonary Hospital from January 1999 to January 2013 were reviewed. Based on the records, patients who also received a diagnosis of CTD were identified, and their records of follow-up examinations for a minimum of 12 months until the end of December 2013 were reviewed.<bold>Results: </bold>Of the 2,678 patients who received a diagnosis of ILD, 1,798 (67%) were identified as having CTD-ILD; 299 (11.2%) had idiopathic pulmonary fibrosis (IPF). Complete clinical data were available for 1,044 patients with CTD-ILD and 178 with IPF. We found that 332 of the 1,044 patients with CTD-ILD (32%) did not receive an accurate diagnosis at the initial hospital admission, 195 (18.7%) of the 1,044 patients showed persistent negative test results for autoantibodies, and 262 (25.1%) of the 1,044 patients had negative autoantibodies at the initial hospital admission and then became positive at follow-up examinations. Of the 288 patients who had confirmed CTD-ILD, 41 (14%) showed pulmonary symptoms as the initial clinical manifestation (PSIM) and 247 (86%) showed extrapulmonary symptoms as the initial clinical manifestation (EPSIM). For the 756 patients who had undifferentiated CTD-ILD, the proportion of PSIM and EPSIM was 44% and 56%, respectively. For patients who presented with PSIM, 23 who had confirmed CTD-ILD (56%) and 216 who had unconfirmed CTD-ILD (65%) did not receive an accurate diagnosis at the initial visit but were ultimately diagnosed at subsequent follow-up examinations.<bold>Conclusions: </bold>Patients with CTD-ILD do not receive an accurate diagnosis at the initial hospital admission possibly because of negative serologic test results for autoantibodies and the absence of obvious extrapulmonary symptoms. Thus, patients with ILD should be examined for extrapulmonary symptoms and tested for autoantibodies at follow-up examinations. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00123692
Volume :
149
Issue :
1
Database :
Academic Search Index
Journal :
CHEST
Publication Type :
Academic Journal
Accession number :
117161090
Full Text :
https://doi.org/10.1378/chest.15-1145