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Updated: May 27, 2025
Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
Influence of metabolic factors on systemic sclerosis complicated with severe interstitial lung disease based on
Chengyu Qian1,2, Jinling Liu1,2, Jingzhi Xie1,2
1Department of Rheumatology, The Affiliated Hospital of Xuzhou Medical University, No.99 Huaihai West Road, Xuzhou, 221002, China.
Objectives:
Systemic sclerosis complicated with interstitial lung disease (SSc-ILD) is a rare autoimmune disease with a dismal prognosis. To analyze the common clinical indicators of systemic sclerosis (SSc) complicated with severe interstitial lung disease (ILD) patients based on the grading of lung high-resolution computed tomography (HRCT) and to explore the risk factors of severe (ILD).
Methods:
A retrospective analysis was performed on 72 newly diagnosed and treated SSc-ILD patients in the Affiliated Hospital of Xuzhou Medical University from June 2013 to August 2023. The interstitial lung disease was divided into grades 1, 2, and 3 according to the HRCT images. Grades 1 and 2 were classified as a non-severe group (42 cases), and grade 3 was a severe group (30 cases). The general data and laboratory examination results of the two groups were analyzed. A logistic regression model was established, and the receiver operating characteristic (ROC) curve was drawn to evaluate the predictive value of risk factors for severe SSc-ILD patients.
Results:
Patients in the severe group had lower height (1.610 ± 0.059 vs 1.574 ± 0.078, P = 0.031), triglyceride (TG) (1.796 ± 0.743 vs 1.265 (1.04, 1.63), P = 0.026) and total protein (TP) (77.96 ± 8.784 vs 72.709 ± 8.042, P = 0.011)than those in the non-severe group. The area under the curve of height, TG, and TP combined with the diagnosis of systemic sclerosis complicated with severe interstitial lung disease was 0.839, and the sensitivity and specificity were 0.750 and 0.781, respectively.
Conclusion:
Low TG and TP may be the risk factors for SSc patients with severe interstitial lung disease. Therefore, it is promising as a potential therapeutic target for SSc-ILD and warrants appropriate follow-up in further studies of patients. Key Points • We hoped to pay attention to the influence of metabolic factors on connective tissue disease complicated with interstitial lung disease due to the relationship between metabolism and immunity is complicated.
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