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AB0550 Etiologic Profile of Interstitial Lung Disease in Internal Medecine
  1. S. Toujani,
  2. F. Ajili,
  3. N. Ben Abdelhafidh,
  4. N. Boussetta,
  5. L. Metoui,
  6. I. Gharsallah,
  7. B. Louzir,
  8. S. Othmani
  1. Internal Diseases, Military Hospital, Tunis, Tunisia

Abstract

Background Interstitial lung disease (ILD) is a heterogeneous group of disorders that are classified together because of similar clinical and radiographic manifestations. However, prognosis and therapeutic response are influenced by the presence of an underlying cause.

Objectives The aim is to study the etiologic profile of ILD in internal medicine.

Methods A retrospective analysis of patients with ILD hospitalized in internal medicine department of military hospital from 2000 to 2013.

Results We evaluated 44 patients (30 women, 14 men) with a mean age of 57 years. Among them, 32% were smokers. The most common symptom was progressive dyspnea occurring in 83% of cases. All the patients had abnormal chest radiographs, mainly confluent reticular infiltrates or diffuse reticulonodular shadowing. Pulmonary function tests were restrictive in pattern in 54% of the subjects. The most frequent disease was connective tissue disorders (CTD) - associated ILD (64% of all cases): Sjogren's syndrome (20%), systemic sclerosis (16%), systemic lupus erythematosus (11%), rheumatoid arthritis (9%), antisynthetase syndrome (5%) and dermatomyositis in one case. The diagnostic of both CTD and ILD was made at the same time in 57% of cases. ILD induced by drugs was observed in 16% followed by sarcoidosis in 11% of cases. Idiopathic pulmonary fibrosis was observed in 3 cases and Churg–Strauss syndrome in one case. Corticosteroid therapy was prescribed in 68% of variable dosage depending on the cause and severity of lung disease. Immunosuppressive treatment with cyclophosphamide was indicated in only 4 cases. The response to therapy was favorable in 48% of cases and not satisfactory in 25% of the cases.

Conclusions Collagen and vascular diseases are more common than previously appreciated. A multi-disciplinary evaluation of patients with DPLD can enhance diagnosis, improve prognosis and quality of care.

Disclosure of Interest None declared

DOI 10.1136/annrheumdis-2014-eular.2378

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