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Intern Med. 2010;49(21):2309-12. Epub 2010 Nov 1.

Bosentan ameliorated exercise-induced pulmonary arterial hypertension complicated with systemic sclerosis.

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1
Department of Cardiovascular Medicine, The University of Tokushima Graduate School of Health Biosciences, Tokushima. syagi@clin.med.tokushima-u.ac.jp

Abstract

Pulmonary arterial hypertension (PAH) is a frequent complication in patients with systemic sclerosis. Bosentan is used in patients with symptomatic PAH; however, it has not been established whether or not bosentan ameliorates the progression of PAH in patients with no PAH-related symptoms. We present a case of systemic sclerosis with no PAH-related symptoms in which bosentan ameliorated exercise-induced PAH evaluated by 6-minute walk stress echocardiography, brachial flow-mediated dilation, and skin temperature of hands and feet. The results suggest that administration of bosentan in patients with early-stage PAH ameliorates pulmonary arterial vasodilatation through improvement of endothelial function.

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