OBJECTIVETo investigate the clinical manifestations, diagnosis and interventions of pulmonary hypertension (PAH) in patients with systemic lupus erythematosus (SLE).

METHODSFrom January 2001 to December 2007, 798 SLE patients without prior diagnosis were admitted in our hospital, among whom 39 were identified to have concomitant PAH defined by echocardiography. The clinical data of the 39 cases were analyzed retrospectively.

RESULTSThe incidence of PAH was 4.9% in these cohort of SLE patients. The 39 SLE patients with concomitant PAH included 5 men and 34 women with a mean age of 34-/+12 years. Positive correlations were found between the occurrence of PAH and the Raynaud phenomenon, fingertip vasculitis, anti-u1RNP antibody positivity, antiphospholipid antibody positivity, pericardial effusion, and interstitial pneumonia (P < 0.05). Patients with higher scores for SLE Disease Activity Index were liable to PAH. The presence of Raynaud phenomenon, fingertip vasculitis, anti-u1RNP antibody positivity, antiphospholipid antibody positivity, pericardial effusion, and interstitial pneumonia is correlated to greater severity PAH with poor prognosis.

CONCLUSIONPAH is not a rare concomitant disease in SLE patients. The presence of Raynaud phenomenon, fingertip vasculitis, anti-u1RNP antibody positivity, antiphospholipid antibody positivity, pericardial effusion, and interstitial pneumonia all suggest the likeliness of PAH in SLE patients, and echocardiographic examination may help derive an early diagnosis.

Adolescent ; Adult ; Aged ; China ; epidemiology ; Early Diagnosis ; Echocardiography ; Female ; Humans ; Hypertension, Pulmonary ; complications ; diagnosis ; epidemiology ; Lupus Erythematosus, Systemic ; complications ; diagnosis ; Male ; Middle Aged ; Raynaud Disease ; complications ; Retrospective Studies

BACKGROUND/AIMS: We investigated whether transthoracic echocardiography-suspected pulmonary hypertension (PH) affects survival in systemic lupus erythematosus (SLE) patients and examined factors associated with PH occurrence and survival. METHODS: This retrospective single-center study included 154 Korean SLE patients fulfilling the American College of Rheumatology criteria (January 1995 to June 2013). Student t test, Mann-Whitney U test, Kaplan-Meier curves, and log-rank tests were used for comparisons. RESULTS: A total of 35 SLE patients with PH (SLE/PH+) and 119 without PH (SLE/PH-) were analyzed. Higher percentages of interstitial lung disease, Raynaud's phenomenon (RP), World Health Organization functional classification III/IV, and cardiomegaly were found in SLE/PH+ compared to SLE/PH-. Furthermore, the Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index was significantly higher in SLE/PH+ (2.46 +/- 1.245 vs. 1.00 +/- 1.235), whereas survival rates were significantly higher in SLE/PH- in log-rank tests (p = 0.001). In multivariate analysis, the adjusted mortality hazard ratio (HR) for SLE/PH+ patients was 3.10. Subgroup analysis demonstrated a higher percentage of lupus nephritis in the SLE/PH+ patients who died (p = 0.039) and low complement-3 levels (p = 0.007). In univariate analysis, the mortality HR for SLE/PH+ patients with lupus nephritis was 4.62, whereas the presence of RP decreased the mortality risk in multivariate analysis; adjusted HR, 0.10. CONCLUSIONS: PH is an independent factor predicting survival in SLE patients. The presence of lupus nephritis resulted in an increased trend for mortality, whereas coexistence of RP was associated with a better survival prognosis in SLE/PH+ patients.
Adolescent ; Adult ; Cardiomegaly/diagnosis/epidemiology ; Chi-Square Distribution ; Female ; Humans ; Hypertension, Pulmonary/diagnosis/*mortality ; Kaplan-Meier Estimate ; Lung Diseases, Interstitial/diagnosis/mortality ; Lupus Erythematosus, Systemic/diagnosis/*mortality ; Lupus Nephritis/diagnosis/mortality ; Male ; Multivariate Analysis ; Prognosis ; Proportional Hazards Models ; Raynaud Disease/diagnosis/epidemiology ; Republic of Korea ; Retrospective Studies ; Risk Factors ; Young Adult