Echocardiographic features and predictors of pulmonary hypertension in patients with systemic lupus erythematosus / 中华风湿病学杂志

ABSTRACT

Objective To analyze the risk factors of pulmonary hypertension in patients with systemic lupus erythematosus (SLE-PH).Methods Echo data of 598 SLE patients were collected,clinical characteristics of 107 suspected SLE-PH (PASP ≥40 mmHg,estimated by Echo) and 64 suspected moderate to severe PH (PASP ≥50 mmHg) were retrospectively analyzed.T-test,x2-test and Logisticregression were used for statistical analysis.Results Out of 598 patients 70.7％(423 patients) had abnormal Echo findings,and pericardial effusion in 45.5％(272 cases),valvular insufficiency in 31.3％(187 cases),suspected PH in 17.9％(107 cases),left ventricular enlargement in 5.9％(35 cases),left ventricular hypertrophy in 4.3％(26cases).In addition 1.7％ had mitral valve prolapse,1.5％ had mitral valve vegetation,and right ventricular enlargement in 6.5％(39 cases),LVEF＜50％ in 6.0％(36 cases),right ventricular systolic dysfunction in 2.2％(13 cases).Logistic regression analysis showed Raynaud's phenomenon (OR=3.205,95％CI1.911-5.375,P=0.000),thrombocytopenia (OR=1.680,95％CI1.049-2.689,P=0.031),hyperuricemia (OR=3.643,95％CI2.154-6.164,P=0.000),and anti-U1RNP antibody positivity (OR=1.777,95％CI1.099-2.874,P=0.019)were independent risk factors for suspected SLE-PH,fever (OR=0.576,P=0.029)and rash (OR=0.558,P=0.017) were independent protective factors for suspected SLE-PH.SLE duration (OR=1.145,95％CI1.016-1.290,P=0.026) and Raynaud's phenomenon (OR=3.371,95％CI1.126-10.086,P=0.030)were independent risk factors for suspected moderate to severe PH,nephritic syndrome (OR=0.042,P=0.009) was the in dependent protective factor for suspected moderate to severe PH.Conclusion Cardiac involvement is common in SLE patients.Screening for PH should be considered in SLE patients with thrombocytopenia,hyperuricemia,anti-U1RNP antibody positivity,particularly with Raynaud's phenomenon.