Rheumatoid arthritis patients with interstitial lung disease: Clinical,radiological and laboratory characteristics |
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Authors: | Nermeen Samy Haitham Salah Rasha M. Hammoda |
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Affiliation: | 1. Department of Internal Medicine and Rheumatology, Faculty of Medicine, Ain Shams University, Cairo, Egypt;2. Department of Chest, Faculty of Medicine, Ain Shams University, Cairo, Egypt |
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Abstract: | BackgroundRheumatoid arthritis associated interstitial lung disease (RA-ILD) has a significant burden of morbidity and mortality.Aim of the workTo analyze clinical, radiological and laboratory characteristics of RA-ILD in an Egyptian cohort.Patients and methodsThe study included 160 RA patients. Detailed medical history, disease activity score (DAS28) and joint damage (Sharp score) were carefully recorded. Chest x-ray, high-resolution computed tomography (HRCT) and pulmonary function tests (PFTs) were done and patients were sub-grouped as RA-ILD (HRCT or PFTs abnormalities) and RA without ILD.ResultsPatients were 136 (85%) females and 24 (15%) males with a mean age of 37.8 ± 11.3 years and disease duration of 4.98 ± 5.53 years. 50% of patients had chest manifestations suggestive of ILD. 60% demonstrated abnormalities in PFT and 63.75% in HRCT. The most common HRCT findings were reticulation (66.6%) and ground glass appearance (64.7%), followed by bronchiectasis (50.9%) and honey combing (46%). usual interstitial pneumonia (UIP) was the most common HRCT subtype (49%). RA-ILD patients were significantly older (p < 0.001), had longer disease duration (p < 0.001), more frequent arthritis (p = 0.002), higher DAS28 (p < 0.001) and Sharp score (p < 0.001), significantly positive rheumatoid factor (RF) (p = 0.007) and anti-citrullinated protein antibody (ACPA) (p < 0.001).ConclusionA high frequency of ILD among Egyptian patients is recorded due to careful evaluation of respiratory symptoms and valuable assessment by PFTs and HRCT chest. UIP is the most common radiologic pattern of RA-ILD. RA patients with ILD are significantly older with longer disease duration, delayed age at onset, high disease activity with arthritis and positive RF and ACPA. |
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Keywords: | Rheumatoid arthritis Interstitial lung diseases HRCT PFT |
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