Clinical manifestations and outcome of anti-PL7 positive patients with antisynthetase syndrome. - Archive ouverte HAL Access content directly
Journal Articles European Journal of Internal Medicine Year : 2013

Clinical manifestations and outcome of anti-PL7 positive patients with antisynthetase syndrome.

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Abstract

BACKGROUND: The aims of the present study were to determine both clinical manifestations and outcome of anti-PL7 patients with antisynthetase syndrome (ASS). METHODS: The medical records of 15 consecutive anti-PL7 patients with biopsy proven ASS were retrospectively analyzed without prior selection. RESULTS: Anti-PL7 patients exhibited polymyositis (n=14) and dermatomyositis (n=1); extra-pulmonary manifestations of ASS included: Raynaud's phenomenon (40%), mechanic's hands (33.3%), joint impairment (26.7%), pericardial effusion (20%) and esophageal/gastrointestinal involvement (20%). The outcome of myositis was as follows: remission/improvement (91.7%) and deterioration (8.3%). Fourteen patients (93.3%) experienced interstitial lung disease (ILD). ILD preceded ASS diagnosis (n=5), was identified concomitantly with ASS (n=8) and occurred after ASS diagnosis (n=1). Patients could be divided into 3 groups according to their presenting lung manifestations: acute onset of lung disease (n=1), progressive onset of lung signs (n=11) and asymptomatic patients exhibiting abnormalities consistent with ILD on PFT and HRCT-scan (n=2). No patient had resolution of ILD, whereas 64.3% and 35.7% experienced improvement and deterioration of ILD, respectively. ILD resulted in respiratory insufficiency requiring O2 therapy in 14.3% of cases. Two patients died. Predictive parameters of ILD deterioration were: DLCO<45% at ILD diagnosis and HRCT-scan pattern of usual interstitial pneumonia (UIP). CONCLUSION: Our series mainly underscores that ILD is frequent in anti-PL7 patients, leading to high morbidity. Our study further suggests that patients with predictive factors of ILD deterioration may require more aggressive therapy, especially the group of patients with DLCO<45% at ILD diagnosis and UIP pattern on HRCT-scan.
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inserm-00872749 , version 1 (14-10-2013)

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Isabelle Marie, Séverine Josse, Olivier Decaux, E. Diot, Cédric Landron, et al.. Clinical manifestations and outcome of anti-PL7 positive patients with antisynthetase syndrome.. European Journal of Internal Medicine, 2013, 24 (5), pp.474-9. ⟨10.1016/j.ejim.2013.01.002⟩. ⟨inserm-00872749⟩
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