Abstract
Pulmonary arterial hypertension (PAH) is an increasingly recognized complication of systemic lupus erythematosus (SLE). This study aims to estimate the point prevalence of PAH and identify risk factors for PAH in a large cohort of hospitalized SLE patients. We have collected the medical records of patients hospitalized with SLE at the First Affiliated Hospital of Anhui Medical University and Anhui Provincial Hospital. Resting transthoracic echocardiography (TTE) was used to estimate pulmonary artery pressure (PAP) and PAH was defined as systolic PAP (PASP) > 30 mmHg. Patients with other connective tissue diseases, aPL syndrome, left heart disease, valvular heart disease, congenital heart disease, HIV, and portal hypertension were excluded because of diseases affecting the PAP. We assessed potential risk factors for PAH such as thrombogenic factors, SLE clinical manifestations, laboratory abnormalities and disease activity. Ninety-five were diagnosed with PAH of 1639 patients with SLE. The presence of high fibrinogen, serositis, and thrombocytopenia were significantly higher in patients with PAH than in those without PAH (all P < 0.05). Multivariate logistic regression found the associations between high fibrinogen (OR = 1.629), serositis (OR = 2.866), and thrombocytopenia (OR = 1.825) with PAH. The point prevalence of PAH was 5.8% in our cohort of patients with SLE. The significant association of high fibrinogen, serositis, and thrombocytopenia with PAH suggested that hypercoagulable state, organ damage, and hematological abnormality may all contribute to the development of PAH in SLE. This is important, as it is treatable.
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This study was conducted with the approval of the ethics committee of Anhui Medical University and according to the Declaration of Helsinki principles.
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Xu, SZ., Yan Liang, Li, XP. et al. Features associated with pulmonary arterial hypertension in Chinese hospitalized systemic lupus erythematosus patients. Clin Rheumatol 37, 1547–1553 (2018). https://doi.org/10.1007/s10067-018-4056-8
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DOI: https://doi.org/10.1007/s10067-018-4056-8