Abstract:RATIONALE: The utility of cardiopulmonary exercise testing with pulmonary artery catheterization (CPET/PAC) as a diagnostic modality in patients with systemic sclerosis (SSc) and unexplained dyspnea has not been studied. METHODS: Retrospective chart review of SSc patients referred over five years for CPET/PAC after initial evaluation (pulmonary function testing, thoracic CT scan, and echocardiography) failed to demonstrate a clear etiology of dyspnea and raised a question of exercise−induced pulmonary hyperten… Show more
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