International journal of rheumatic diseases
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Comparative Study Observational Study
Determining the necessity for right heart catheterization in pulmonary hypertension associated with connective tissue diseases assessed by echocardiography.
The prognosis of pulmonary hypertension (PH) in systemic sclerosis (SSC) and in systemic lupus erythematosus (SLE) is different. According to the guidelines, right heart catheterization (RHC) is necessary in pulmonary arterial hypertension (PAH) associated with connective tissue diseases (CTD). However, there is little supporting evidence. Therefore, we attempted to determine the necessity for RHC and the causes of differences in prognosis of PH by comparing SSC to SLE. ⋯ PVR was an important cause of PH in SSC. Left ventricular dysfunction was an important cause of PH in SLE. Thus, these findings demonstrate the necessity for RHC and differences in prognosis of PH in CTD.