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  • Title: Prognostic significance of computed tomography criteria for pulmonary veno-occlusive disease in systemic sclerosis-pulmonary arterial hypertension.
    Author: Connolly MJ, Abdullah S, Ridout DA, Schreiber BE, Haddock JA, Coghlan JG.
    Journal: Rheumatology (Oxford); 2017 Dec 01; 56(12):2197-2203. PubMed ID: 29029203.
    Abstract:
    OBJECTIVES: SSc-pulmonary arterial hypertension (SSc-PAH) is associated with worse response to therapy and survival when compared with idiopathic PAH. It is suggested that the vasculopathy in SSc may involve postcapillary pulmonary venules resulting in pulmonary veno-occlusive disease (PVOD). This may underlie the lower gas transfer and worse outcome on therapy. We sought to test whether CT signs of PVOD (CTS-PVOD) were frequent in SSc-PAH and whether they were associated with pulmonary oedema on therapy and worse survival. METHODS: CT thorax of 66 SSc patients with precapillary pulmonary hypertension (PH) were blindly scored by two radiologists for CTS-PVOD (⩽1 or ⩾ 2). Case note and radiograph review determined the presence of pulmonary oedema on therapy. RESULTS: Fifty-nine patients (89%) had ⩽1 CTS-PVOD and only 7 (11%) had ⩾2 CTS-PVOD. Pulmonary oedema on therapy was relatively common in those with ⩾2 CTS-PVOD. On univariate analysis ⩾2 CTS-PVOD were associated with a trend towards worse survival. CONCLUSION: CTS-PVOD were less frequent in this SSc-PAH cohort than in previous reports but the presence of at least two of these signs is associated with pulmonary oedema on therapy and a trend towards worse survival on univariate analysis.
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